Pressure Relief Valves Industrial Valves

Connection Type 1/4" Safety Coupler and Nipple. Description Simple Controller with 145 psi (10 bar) Relief Valve, Gauge and Ball Valve. Sage Subcategory Number W1615. Shipping Wt. 4 Lb (1.81 Kg) [See More]

• Valve Type: Relief

• Valve Size: 0.25

Featuring a repeatable pressure release design for pressures up to 20,000 psi (1,380 bar). [See More]

• Valve Type: Relief
• Valve Size: 0.75

• Media: Gas; Air; Compressed Air
• Maximum Pressure: 1500.00 to 20000.00

PRESSURE BOOSTER [See More]

• Valve Type: Relief; Pressure Switch
• Connection Description: Threaded

• Maximum Pressure: 29.00 to 116.00

1/2" CPVC, AUTOMATIC DEGASSING VALVE, NPT [See More]

• Valve Type: Relief
• Valve Size: 0.50

• Primary Material: CPVC
• Maximum Pressure: 150.00

Dechengwang is a specialized Fluoropolymer components manufacturer. Since 2006, the material range expaned from Virgin PTFE to Modified PTFE, PTFE compound, PEEK, PFA, PCTFE, PVDF, PI, PPS and PEI material. The use of fluoroplastic has many advantages in manufacturing and engineering, widely used in... [See More]

• Valve Type: Double Check; Foot Valve (optional feature); Wafer (optional feature); Back Flow (optional feature); Angle; Diaphragm (optional feature); Needle (optional feature); Piston; Solenoid; Relief; Safety; Sanitary (optional feature); Shut Off (optional feature)
• Actuation: Manual

• Media: Water; Hot Water; Cold Water  ; Potable Water; Salt Water; Wastewater (optional feature); Gasoline / Diesel Fuel; High Purity; LP Gas; Specialty Corrosive; Hydraulic; Steam (optional feature); Chemical

Preasure relief valve [See More]

• Valve Type: Relief

Safety group SFR 3/4'' [See More]

• Valve Type: Relief
• Connection Description: Threaded

• Valve Size: 0.75

Pressure relief valves from Technetics Group are designed to protect your pressure vessels, systems and components. Our engineers will tailor overpressure solutions to the specifications you require. As with each of our solutions, the pressure relief valve solutions that we develop are... [See More]

• Valve Type: Relief
• Media: Jet & Rocket Fuels, Oxidizers, other Harsh Fluids

• Primary Material: Aluminum; Stainless Steel; Exotic Metal; PTFE
• Valve Size: 0.25 to 3.00

Fisnar 560616-50 Brass Pressure Relief Valve is designed to help regulate air pressure within a dispensing system. 50 psi max, 0.25 in NPT. [See More]

• Valve Type: Relief

This direct-acting valve is ideally suited for low pressure hydraulic applications where a fast-opening safety valve is needed to prevent system damage from pressure spikes. Minimum cracking pressures are available from 20-100 psid. An integral safety screen is available for added protection. [See More]

• Valve Type: Relief; Safety Relief Valves | Pressure Regulating Relief Valves

• Valve Size: 0.19

Description. The 5214 series high-performance steam safety valve is suitable for steam overpressure protection of power boilers, once-through boilers, reheaters, and other equipment and pipelines. Designed and manufactured according to ASME I standards. Size: 1-1/2"x2" to 8"x10". Nominal Pressure:... [See More]

• Valve Type: Directional; Relief; Safety
• Valve Size: 2.00 to 10.00

• Media: Steam

New Type Low Profile M12x1.5 Dual Stage Vent Valve for Battery Pack,Gearbox,Chemical Enclosure. Performance: 1. Low Profile of Head at 10mm. 2.Dual Stage: Vent+ Over pressure release Valve. 3.Oil resistance: not affect venting after contact oil or cover oil such as at Gearbox application. 4.Robust... [See More]

• Valve Type: Relief
• Media: Air

• Primary Material: Aluminum
• Valve Size: 0.47

Series TRVDT is a high flow relief/by-pass valve with 3-port design, ideal for applications where minimal footprint is required or where use of a piping tee is impractical. Valve has a straight-through flow pattern when closed. When set point is exceeded, the diaphragm is lifted off the center port,... [See More]

• Valve Type: Relief
• Media: Water; Ultra-Pure Water, Conc. Etchants

• Primary Material: PVC; CPVC (optional feature); PTFE (optional feature); PP (optional feature); PVDF (optional feature)
• Valve Size: 0.50 to 1.00

DISCONTINUED BY MANUFACTURER, BUTTERFLY VALVE, WITH CONTROL UNIT, AIR TO SPRING ACT, NORMALLY CLOSED, 24 VDC PROXIMITY SWITCHES, 24 VDC SOLENOID, STRAIN RELIEF CONNECTOR. FREE 2 YEAR RADWELL WARRANTY [See More]

• Valve Type: Control Valve; Butterfly; Solenoid; Relief; Anti-Siphon

Beswick's RV2 series miniature piston relief valve is an excellent choice for applications requiring a valve which opens on rising pressure. The RV2 is factory set to your desired relief pressure. The design is compact, and it is an outstanding choice for pressure relieving applications from 3 to 50... [See More]

• Valve Type: Relief
• Maximum Pressure: 500.00

• Primary Material: Stainless Steel; 303 Stainless Steel, [6] - 316 Stainless Steel

Connection Type 1/4" Safety Coupler and Nipple. Description Simple Controller with Dual 145 psi (10 bar) Relief Valve, Gauges and Ball Valves. Sage Subcategory Number W1615. Shipping Wt. 2 Lb (0.91 Kg) [See More]

• Valve Type: Relief

• Valve Size: 0.25

PRESSURE BOOSTER [See More]

• Valve Type: Relief; Pressure Switch
• Connection Description: Threaded

• Maximum Pressure: 29.00 to 116.00

1/2" CPVC, AUTOMATIC DEGASSING VALVE, UNION [See More]

• Valve Type: Relief
• Valve Size: 0.50

• Primary Material: CPVC
• Maximum Pressure: 150.00

Safety group SFR 3/4'' stainless steel [See More]

• Valve Type: Relief
• Valve Size: 0.75

• Primary Material: Brass / Bronze; Brass
• Connection Description: Threaded; 3/4 in G, 3/4 in G

Fisnar 560763 Brass Pressure Relief Valve is designed to help regulate air pressure within a dispensing system. 125 psi max, 0.25 in NPT. [See More]

• Valve Type: Relief

This direct-acting valve has been optimized to relieve small flows caused by thermal expansion of a trapped volume of fluid. Minimum cracking pressures are available from 3500-4500 psid. This valve includes a 15 micron filter. Features. Diameter: 0.187 inches. Full Open Lohm Rate: 325,000 Lohms max. [See More]

• Valve Type: Relief; Thermal Relief Valves

• Valve Size: 0.19

Description. The 5215 series safety valve is used as an overpressure protection device where the medium needs to be insulated in polyester, ethylene, asphalt, and urea fertilizer equipment. The 5215B is a bellows structure designed for thermal insulation jacket safety valve. Size: 1"x2" to 8"x10". [See More]

• Valve Type: Directional; Relief; Safety
• Valve Size: 1.00 to 10.00

• Media: Steam

Application: E-car Battery Pack ex-proof Vavle. For other Battery Pack. · Pressure equalization and release in order to extend seal life. · Can open the valve rapidly when heating up under a abnormal status. · Prevent condensation. · Block contaminants like dust, dirt and debris. [See More]

• Valve Type: Relief
• Media: Air; Breathable

• Primary Material: PA6
• Maximum Pressure: 1.45

Series RVT/RVTX is a high capacity angle pattern valve for relief, bypass, backpressure and pump backpressure applications with excellent corrosion resistance. 1/2 ″ – 2 ″ sizes in most popular thermoplastic materials and connections; 5 – 125 PSI set range. 3 ″ size... [See More]

• Valve Type: Relief
• Media: Acids, Highly Corrosive Liquids

• Primary Material: PVC; CPVC (optional feature); PTFE (optional feature); PP (optional feature); PVDF (optional feature)
• Valve Size: 0.25 to 2.00

RELIEF VALVE, ADJUSTABLE. FREE 2 YEAR RADWELL WARRANTY [See More]

• Valve Type: Relief; Anti-Siphon

Beswick's RVD8 series miniature diaphragm relief valve is an excellent choice for applications requiring a valve which opens on rising pressure. The design offers compactness, light weight and high accuracy. Performance is similar to the RVD series. Features: Manifold mount configuration. Max Supply... [See More]

• Valve Type: Relief
• Maximum Pressure: 500.00

• Primary Material: Stainless Steel; 303 Stainless Steel

Connection Type 1/4" Safety Coupler and Nipple. Description In-Line Shut-Off Valve with Relief Valve, EU Safety Couplers. Sage Subcategory Number W161. Shipping Wt. 1 Lb (0.45 Kg) [See More]

• Valve Type: Relief; Shut Off

• Valve Size: 0.25

PRESSURE BOOSTER [See More]

• Valve Type: Relief; Pressure Switch
• Connection Description: Threaded

• Maximum Pressure: 29.00 to 116.00

1/4" CPVC PRESSURE RELIEF VALVE, EPDM, NPT, MINI [See More]

• Valve Type: Relief
• Valve Size: 0.25

• Primary Material: CPVC
• Maximum Pressure: 150.00

Safety group SFR 3/4'' angle body stainl [See More]

• Valve Type: Relief
• Connection Description: Threaded

• Valve Size: 0.75

This direct-acting valve is ideally suited for low pressure hydraulic applications where a safety relief valve with extremely low leakage is needed to seal the system when closed. The valve ’s fast opening response helps to prevent system damage from pressure spikes. Minimum cracking pressures... [See More]

• Valve Type: Relief; Safety Relief Valves | Zero-Leak Relief Valves

• Valve Size: 0.19

Description. The 5216 series is a lined bellows safety valve. The main parts in the valve that are in contact with the medium are lined with fluorine material. The special bellows design is suitable for highly corrosive working conditions such as salt water, wet chlorine, hydrochloric acid, sulfuric... [See More]

• Valve Type: Directional; Relief; Safety
• Valve Size: 1.00 to 10.00

• Media: Steam

The Milvent MIV-25MAEX series represents a breakthrough in the protection and enhancement of battery pack performance for E-cars and sensitive electronic enclosures. Crafted from high-quality aluminum and finished in silver, these vents offer a robust solution to common issues faced by battery packs... [See More]

• Valve Type: Relief
• Media: Air

• Primary Material: Aluminum
• Valve Size: 1.18

Series RVDT/RVDTM is a universal automatic backpressure control valve for pressure relief, pump backpressure, pump bypass, anti-siphon, and backpressure regulator applications. Thermoplastic or Metal Valves designed for smooth, sensitive operation and the ultimate in corrosion resistance or... [See More]

• Valve Type: Relief; Anti-Siphon
• Media: Water; Ultra-Pure Water, Conc. Etchants

• Primary Material: PVC; CPVC (optional feature); PTFE (optional feature); PP (optional feature); PVDF (optional feature)
• Valve Size: 0.25 to 2.00

MULTI FUNCTION VALVE, OPEN, 3 BAR, OPEN, 3 BAR, 10 BAR RELIEF. FREE 2 YEAR RADWELL WARRANTY [See More]

• Valve Type: Relief; Anti-Siphon

Beswick Engineering's RV-MLS series single stage piston style pressure relief valves offer relatively precise back pressure regulation in an extremely compact package. The RV-MLS is the smallest relief valve that we currently offer, and is primarily intended for applications where space saving is... [See More]

• Valve Type: Relief
• Maximum Pressure: 500.00

• Primary Material: Stainless Steel; 303 Stainless Steel
• Connection Description: Threaded; Compression

Connection Type 1/4" Safety Coupler and Nipple. Description 145 psi (10 bar) Relief Valve with Shut-Off. Sage Subcategory Number W1615. Shipping Wt. 4 Lb (1.81 Kg) [See More]

• Valve Type: Relief; Shut Off

• Valve Size: 0.25

PRESSURE BOOSTER [See More]

• Valve Type: Relief; Pressure Switch
• Connection Description: Threaded

• Maximum Pressure: 36.00 to 116.00

1/4" 316 SS PRESSURE RELIEF VALVE, EPDM, NPT, MINI [See More]

• Valve Type: Relief
• Valve Size: 0.25

• Primary Material: Stainless Steel
• Maximum Pressure: 150.00

Pressure Relief Vent, Snap-In Plastic, > [See More]

• Valve Type: Relief

This cartridge safety pressure relief valve is constructed with medical grade 316L stainless steel and a ceramic ball for improved compatibility with aggressive fluids like hydrogen. It is designed specifically for installation into plastic housings, fittings, or soft tubing and can be installed in... [See More]

• Valve Type: Relief
• Connection Description: Press-In - Into Plastic

• Valve Size: 0.10

Description. The 5212 Series Pilot-operated safety relief valves are mainly used in the fields of oil and gas, chemical industry, electric power, metallurgy, and natural gas. It is the best overpressure protection device for pressurized equipment, containers, or pipelines. The allowed working... [See More]

• Valve Type: Directional; Pilot; Relief; Safety
• Valve Size: 1.00 to 24.00

• Media: Steam

Series RVDM features a primary rolling diaphragm and a secondary flat diaphragm which incorporates the Plast-O-Matic patented Fail-Dry design for added protection. The rolling diaphragm provides greater sensitivity than non-diaphragm style relief valves, and is ideal for all applications without... [See More]

• Valve Type: Relief
• Media: Corrosive, High Purity Liquids

• Primary Material: PVC; CPVC (optional feature); PP (optional feature); PVDF (optional feature)
• Valve Size: 0.50 to 1.00

SAFETY RELIEF VALVE, SERIES 900, MALE X FEMALE NPT, 3/4INCH INLET SIZE, VITON SEAT/SEAL MATERIAL, THREAD CAP WITH GAG, 20.0 SET PRESSURE, 3/4PSI SIZE. FREE 2 YEAR RADWELL WARRANTY [See More]

• Valve Type: Relief; Safety; Anti-Siphon

• Connection Description: Threaded

Connection Type 1/4" QC. Description Adjustable Pressure Relief Valve 0-100 PSI. Pressure, PSI 0-100 psi (6.89 bar). Sage Subcategory Number W9360. Shipping Wt. 2 Lb (0.91 Kg). Type For Air or Nitrogen [See More]

• Valve Type: Relief
• Valve Size: 0.25

• Media: Gas; Air
• Maximum Pressure: 0.00 to 100.00

PRESSURE BOOSTER [See More]

• Valve Type: Relief; Pressure Switch
• Connection Description: Threaded

• Maximum Pressure: 36.00 to 116.00

1/2" CPVC PRESSURE RELIEF VALVE, EPDM, 150# FLANGE, MINI [See More]

• Valve Type: Relief
• Valve Size: 0.50

• Primary Material: CPVC
• Maximum Pressure: 150.00

Pressure Relief Vent, Snap-In Plastic, > [See More]

• Valve Type: Relief

• Connection Description: Threaded; M12

This direct-acting, cartridge safety pressure relief valve is specifically designed for installation into many common medical fittings and plastic housings. It can be installed in either forward or reverse flow directions. The valve features all stainless steel construction, making it compatible... [See More]

• Valve Type: Relief
• Connection Description: Press-In - Into Plastic

• Valve Size: 0.10

Description. The 5210 series Safety relief valve includes a regular spring-type safety valve, while the 5210B type is a back-pressure balanced bellows spring-type safety valve. They are designed, manufactured, and inspected according to API526 and API527 standards. These valves are suitable for air,... [See More]

• Valve Type: Directional; Relief; Safety
• Valve Size: 1.00 to 10.00

• Media: Steam

Series RVD rugged compact designed for use as back pressure valve, straight relief, by-pass relief or back pressure regulator. 1/4 ″ and 1/2 ″ sizes in most popular thermoplastic materials and connections; 5 – 150 PSI set range. [See More]

• Valve Type: Relief
• Media: Corrosives

• Primary Material: PVC; PTFE (optional feature); PP (optional feature); PVDF (optional feature)
• Valve Size: 0.25 to 0.50

RELIEF/BYPASS/BACKPRESSURE, D2 SERIES, SIZE 1/2 IN., SEAL EPDM, CONNECTION NPT THREADED, BODY MATERIAL POLYPRO. FREE 2 YEAR RADWELL WARRANTY [See More]

• Valve Type: Relief; Anti-Siphon

• Connection Description: Threaded

Reduces high upstream pressure to lower downstream pressure. Standard C101 valves are set at 25 - 125 PSI. Consult factory for other options. 1 ¼"- 12" Consult factory for configuration. Configurations: Model C - Full Port Globe Style (Flanged or Threaded). Model CF - Reduced Port Globe Style... [See More]

• Valve Type: Control Valve; Angle; Relief
• Actuation: Pilot

• Valve Size: 1.25 to 36.00
• Connection Description: Threaded

Reduced Pressure Zone Assemblies are used to protect against high hazard (toxic) fluids in water services to industrial plants, hospitals, morgues, mortuaries, and chemical plants. They are also used in irrigation systems, boiler feed, water lines and other installations requiring maximum... [See More]

• Valve Type: Check; Relief
• Media: Water; Potable Water

• Primary Material: Brass / Bronze (optional feature); Copper (optional feature)
• Valve Size: 0.50 to 10.00

bull; Models 86200-31 through 86200-66 are equipped with handwheel for easy adjustment with spring ranges. • Models 86200-71 through 86201-09 have a pressure-tight cap; suitable for a maximum back pressure of 50 psig. Use the bronze valves for overpressure relief and protection of pumps,... [See More]

• Valve Type: Relief

VER-SP. PROPORTIONAL PILOT OPERATED PRESSURE RELIEF VALVES. Sizes R06 NFPA thru R10 NFPA. Max Pressure 5000 PSI (350 bar). Max Flow Rate 132 gpm (500 l/min). Description. VER*SP valves are Proportional pilot operated pressure relief valves with subplate mounting according to NFPA T3.5.1 R2-2002 and... [See More]

• Valve Type: Solenoid; Relief
• Maximum Pressure: 1015.26 to 5076.32

• Media: Hydraulic
• Actuation: Pilot

Features. High pressure range.(Max setting pressure: 4.2Mpa [609.16psi]). Small and light weight. Cracking pressure ’s setting is done before delivering. Applications. Machine Tools ：Milling machine, NC lathe, laser processing machine etc. Industrial furnace ：General industrial... [See More]

• Valve Type: Relief
• Media: Water; Air

• Primary Material: Brass / Bronze; Stainless Steel
• Valve Size: 0.12 to 0.75

CIRCOR Energy is pleased to offer the Model 3500 as part of our Pilot Operated Valves portfolio. Below is a list of features that will enable you to better understand its capabilities. Features. Snap acting & modulating options available. API orifice sizes "D" through "T". Air & gas... [See More]

• Valve Type: Pilot; Relief
• Media: Gas; LP Gas; Natural Gas

• Primary Material: Steel
• Valve Size: 1.00 to 8.00

The Zurn Wilkins P1550XL Pressure Relief Valve is installed on cold water service lines to protect against excessive pressure buildup. These devices are for pressure only and should be used in conjunction with other temperature limiting devices. To view all options, see the Specification Sheet. [See More]

• Valve Type: Relief; Anti-Siphon

• Media: Water

The 1/4" to 3/4" relief valves are suitable for pressure settings up to 100 PSI. Higher pressure settings are possible by changing the spring. The 1" relief valve is suitable for pressure settings up to 200 PSI. [See More]

• Valve Type: Ball; Poppet; Relief
• Valve Size: 0.25

• Media: Air; Compressed Air
• Number of Ports: 2

The R Series & 10691 Series Back Pressure Relief Valves are used in the following applications: Water pump bypass for Irrigation, sprinkler systems on golf courses, fountains, and fire protection systems Fuel oil pump bypass on commercial systems or large residential systems The Relief Valve is... [See More]

• Valve Type: Relief
• Media: Water; Liquids

• Primary Material: Brass / Bronze
• Valve Size: 0.50

TESCOM ™ Compact Panel is a central gas supply unit for the pressure control of analytical gases in laboratory facilities. Depending on the requirements, these units switch over to a spare cylinder to enable an uninterrupted gas supply. The use of contact gauges allows the monitoring of empty... [See More]

• Valve Type: Relief
• Media: Gas; High Purity; Specialty Corrosive

• Primary Material: Brass / Bronze (optional feature); Stainless Steel (optional feature)
• Valve Size: 0.25

A Relief Valve, or Pop-Off Valve, is a secondary pressure regulating device used to back up the primary regulating device. If the primary regulating device fails to by-pass at a set system pressure, the relief valve will open and allow liquid to flow freely. A relief valve can save costly pump and... [See More]

• Valve Type: Relief
• Media: Water

• Primary Material: Stainless Steel
• Valve Size: 2.00

The Valve is designed for precise control in pneumatic control circuits. It can be used as a relay valve to sequence specific signal operations or as a relief valve to limit pressure in a pneumatic system. Fixed or adjustable pressure settings are available; the pressure range is 0-20 PSI. To adjust... [See More]

• Valve Type: Relief; Sequence Valve
• Media: Air; Compressed Air

• Primary Material: Polysulfone
• Valve Size: 0.06 to 0.12

CPM valves maintain uniform inlet or outlet pressure in hygienic process lines for the dairy, food and beverage industries. These regulating valves provide accurate pressure control, safe and reliable performance and excellent cleanability. Safe, effective pressure control. Alfa Laval Constant... [See More]

• Valve Type: Diaphragm; Relief
• Media: Water

• Primary Material: Stainless Steel
• Valve Size: 1.97 to 2.83

The BDV depressurisation valves are designed to be fitted into " , ½ " and DN15 connections for drain / blowdown / purge and vent / depressurisation of pipework or products. The B DV1 provides discharge straight through the valve, generally to be used as a drain, or for line depressurisation... [See More]

• Valve Type: Blow Off; Relief
• Media: Water; Gas; Steam; Air

• Primary Material: Stainless Steel
• Valve Size: 0.38 to 0.50

Valves for protecting fired and unfired hot water vessels against hazardous operating pressures. Engineered in accordance with Section IV of the ASME boiler and pressure code for heating boilers with capacities certified by the National Board of Boiler and Pressure Vessel Inspectors. Offer the... [See More]

• Valve Type: Diaphragm; Relief
• Media: Water; Hot Water

• Primary Material: Brass / Bronze
• Valve Size: 1.00

Our IPS Pressure Relief Valve (PRV) is constructed with a 100% pure PTFE Valve Body and Valve Plug. The single O-Ring design allows user selection of EP, Viton or Kalrez (FFKM eq.) depending on the flowing media. The IPS PRV is factory configured for a 10 psi to 90 psi pressure range. The relief... [See More]

• Valve Type: Relief
• Valve Size: 0.25 to 0.50

• Primary Material: PTFE
• Maximum Pressure: 10.00 to 90.00

Continuously bleeds off excess internal gas to maintain a safe positive pressure inside glove boxes. Variable release mechanism automatically discharges any sudden surge of incoming gas. Protects against accidental negative pressure by functioning as a check valve. Extends life of doors and gaskets. [See More]

• Valve Type: Block Bleed; Check; Relief
• Media: Air; Breathable; Compressed Air

• Primary Material: Stainless Steel (optional feature); polymer
• Valve Size: 0.62 to 1.00

FUNCTION. The PRINCE valve model DRV is a differential poppet type double relief. This valve uses the same relief cartridge as the model RV. The double relief is used in systems that require cross over relief protection such a reversible hydraulic motor, or systems that require a cushion valve such... [See More]

• Valve Type: Relief; Differential Poppet
• Media: Hydraulic

• Primary Material: Cast Iron; Steel
• Maximum Pressure: 3000.00

The CRV08-20 cross-port relief uses two RV08-20 cartridges in an in-line plumbed housing. It is typically used to protect a hydraulic cylinder or motor from load-induced pressure surges. The cartridges used are screw-in, direct-acting, poppet-type valves, intended for use in lower flow circuits,... [See More]

• Valve Type: Cartridge; Poppet; Relief
• Media: Hydraulic

• Primary Material: Aluminum
• Maximum Pressure: 3306.86

Many of our end users have lines with high backpressures, which can negatively affect the operation of AODD pumps. To help reduce the backpressure on pumps in such applications, we designed the Quick Exhaust Valve. In addition to reducing the exhaust backpressure, it can capture any chemical in the... [See More]

• Valve Type: Relief
• Number of Ports: 2

• Media: Water; Air; Compressed Air; Chemical
• Flow (Cv): 1.80

Kelly Pneumatics, Inc. introduces an electronic pressure relief valve for high flow applications. This valve offers high-resolution pressure chamber control for applications that require high volume, relieving flow performance. Well used in applications that need to sustain a consistent chamber... [See More]

• Valve Type: Servo; Relief
• Maximum Pressure: 1.00 to 98.00

• Media: Water; Air
• Number of Ports: 2

The GP-2000R is a high-performance externally piloted throttling back-pressure valve for large capacity applications. Typical applications would include systems using flash steam for low-pressure heating or processes. The GP-2000R valve will function to maintain a constant upstream pressure. This... [See More]

• Valve Type: Control Valve; Metal Seated; Pilot; Relief
• Media: Steam

• Primary Material: Ductile Iron
• Valve Size: 0.50 to 6.00

Founded in 1998, FITOK Group has been an industry-leading developer and manufacturer of superior quality instrumentation valves and fittings, having our R &D centers, manufacturing facilities, warehousing and service locations in Offenbach Germany, Texas USA, Shenzhen China and Dubai UAE. We... [See More]

• Valve Type: Relief
• Media: Water; Air; Compressed Air

• Primary Material: Stainless Steel
• Valve Size: 0.08 to 0.31

Flows Rates: Flow calculated based upon: Air @ 15 °C and 1013 mbar and are for guidance only, contact Seetru for help in sizing to your specifications. Product Description: 10mm Nominal Bore Atmospheric Discharge Safety Relief Valve For Compressed Air & Gases. Notes: Relieving pressure is set... [See More]

• Valve Type: Relief; Safety
• Media: Gas; Air

• Primary Material: Brass / Bronze
• Valve Size: 0.50 to 0.75

Features. Wide assortment of NPTF Thread Check Valves. For oxygen and fuel gas service [See More]

• Valve Type: Check; Relief; Shut Off
• Valve Size: 0.25 to 1.50

• Media: Gas; Oxygen, Fuel Gas
• Number of Ports: 2

Hydraulic valves are manufactured in a variety of styles to function in different applications. Valves are used to manipulate the flow of hydraulic fluid within a hydraulic circuit and are activated either mechanically or electronically. Directional Control Valves are the most commonly used valve in... [See More]

• Valve Type: Relief

• Media: Hydraulic

Precision Relief Valves are used as a safety device on reservoirs where a certain maximum pressure should not be exceeded. Their use can be extended to any application demanding pressure be relieved at a specific value. The valves have a fixed upper pressure rating held within plus or minus 10 PSI... [See More]

• Valve Type: Relief
• Maximum Pressure: 5.00 to ?

• Primary Material: Aluminum
• Connection Description: Threaded

E C Tool offers a complete line of Oteco Gate Valves, Demco Gate Valves, O'Drill Pressure Relief valves, manifold valves, butterfly valves, ball valves and check valves to meet you rig needs. We also maintain a large inventory of spare parts for most the valves we offer. [See More]

• Valve Type: Relief

• Media: Hydraulic

. Prevent System Over-Pressurization. Upchurch Scientific Pressure Relief Valves are ideal for preventing system over-pressurization. These products protect system components by diverting fluid flow automatically when pressure exceeds the set limit. Choose between our preset 100 psi (7 bar) and 5... [See More]

• Valve Type: Relief

These pressure limiting valves are electrically remote controlled and rule the hydraulic pressure within the system. This enables arbitrary control of the maximum pressure in the circuit there by protecting it depending on the momentarily required condition. These valves are either directly actuated... [See More]

• Valve Type: Relief
• Media: Hydraulic

• Primary Material: Steel
• Maximum Pressure: 652.67 to 10152.64

APPLICATION : On top of silos and bins, hoppers, containers to avoid overpressure and underpressure. To avoid problems which could severely damage both silo. and filter. MATERIALS : All contact parts are in mild steel, on request in stainless steel. Cover is made from polymer, seals according to... [See More]

• Valve Type: Relief

Up to 6000psig (413bar). Up to 204 ℃ (400 ℉). SS316. Cracking pressure 50 to 6000psing (3.4 to 413bar). DK-LOK OD 1/4 - 1/2 inch. Pipe thread 1/4 - 1/2 inch [See More]

• Valve Type: Relief
• Media: Water; Air

• Primary Material: Stainless Steel; PP; Rubber (optional feature); Vitron (optional EPDM and BUNA N)
• Valve Size: 0.19

Walchem diaphragm back pressure valves are used to enhance the performance of chemical feed pumps and systems by providing a constant discharge head pressure. These valves also function as an antisyphon valve. The diaphragm is held against the seat by the internal spring. Back pressure is adjustable... [See More]

• Valve Type: Relief
• Valve Size: 0.50

• Primary Material: PVDF
• Maximum Pressure: 150.00

ARE are poppet type, direct operated pressure relief valves, with threaded ports for in-line mounting. The flow is permitted when pressure force acting on the poppet overcomes the force of the spring. Regulation is operated by means of a screw or optionally by means of a handwheel acting on the... [See More]

• Valve Type: Poppet; Relief
• Valve Size: 0.25 to 0.50

• Media: Hydraulic
• Maximum Pressure: 7251.89

Taco's cartridge style pressure reducing valve sets a new standard for performance and serviceability. All the parts are contained in a one piece cartridge which can be easily removed and serviced without reducing the system pressure. A fast-fill mode that automatically returns to the normal mode... [See More]

• Valve Type: Relief

• Media: Water

The M-VF-F Series is designed PFA molded body suitable for semiconductor, ultra-pure water and aggressive chemical applications. Features: High reliability. Factory set. Low pressure drop. All mechanical. Right-angle flow. Flare type connection. Bubble tight seal [See More]

• Valve Type: Relief
• Actuation: Mechanical

• Media: Water; Chemical
• Connection Description: Flare Type Connection

Cast bronze frame and cover. 125# Flange. Typical Specifications. Hydrostatic pressure relief valves shall be designed to effectively relieve excess ground water from around submerged structures, helping to prevent flotation of the structure. The valve frame shall be of solid cast bronze with a... [See More]

• Valve Type: Relief

Series 140S, 140X Automatic Reseating Temperature and Pressure Relief Valves are used in commercial water heater applications to provide automatic temperature and pressure protection to domestic hot water supply tanks and hot water heaters. They feature a bronze body with NPT female inlet and NPT... [See More]

• Valve Type: Relief
• Valve Size: 0.75 to 1.00

• Media: Water

Vacuum pressure relief module for vacuum pump protection. The vacuum pressure relief module is used to protect the vacuum pump from excess pressure. Even in cases of rapid pressure rises (up to 4,350 psi) the vacuum pressure relief module protects the vacuum pump and its peripherals effectively. If... [See More]

• Valve Type: Relief; Anti-Siphon
• Media: Gas; High Purity; Air

• Primary Material: Aluminum; Brass / Bronze; Stainless Steel
• Valve Size: 0.47

Pressure relief vents open and close within a predetermined pressure range. As internal pressures rise, the plunger or check ball opens, allowing pressure to vent. As pressures decrease to below the minimum threshold, the valve closes. [See More]

• Valve Type: Relief
• Valve Size: 0.12 to 0.39

• Primary Material: Steel
• Maximum Pressure: 0.25 to 80.00

Valcor Relief Valves provide over-pressurization protection with direct acting and/or pilot operated mechanical components. Our relief valves are available in dual ported (inlet and outlet ports) or ambient vented styles and are suitable for many different aerospace plumbing applications. [See More]

• Valve Type: Relief
• Media: Hydraulic; Air; Compressed Air

• Primary Material: Aluminum; Exotic Metal
• Maximum Pressure: 20.00 to 3800.00

This unit senses the upstream pressure through a connection to the valve inlet. The valve and pilot remain closed until the inlet pressure exceeds the pilot setting. The valve opens rapidly to relieve damaging over pressure and closes smoothly at an adjustable speed, when the pressure returns below... [See More]

• Valve Type: Control Valve; Relief
• Connection Description: Threaded (optional feature); BoltFlange (optional feature); Socket Weld (optional feature); Threaded: 300# NPT or BSP, Flanged: ANSI 300#; ISO PN25; Au Class 21/35; Au; Table E/F, Flanged: ANSI 300#; ISO PN25; Au Class 21/35; Au; Table E/F

• Media: Water

Curtis Wright provides a variety of industrial grade pressure relief valves that meet the harsh environments suitable for applications such as power and oil, petrochemical, hydrocarbon service, seawater cooling systems, offshore applications. Curtiss-Wright pressure relief valves are supplied... [See More]

• Valve Type: Relief
• Valve Size: 0.50 to 24.00

• Media: Water; Gas; Steam; Air; Chemical
• Media Temperature: -319 to 1499

10 GPM Adjustable Relief Valve [See More]

• Valve Type: Control Valve; Cartridge; Relief
• Connection Description: 8ORBF

• Maximum Pressure: 3500.00

Actuated Toggle Valves. Maximum working pressure up to 450psig (31bar). Quick opening and closing. 316 stainless steel and brass body construction. 100% factory tested. Features. Valve and actuator are fully assembled. O-ring stem seal - no packing adjustment requirement. Actuator material is... [See More]

• Valve Type: Control Valve; Toggle; Relief
• Valve Size: 0.12 to 0.38

• Primary Material: Brass / Bronze (optional feature); Stainless Steel (optional feature)
• Maximum Pressure: 450.00

Pressure reduction valve for manual control of compressed air in systems. Targeted supply of compressed air through precise pressure control, for pneumatic vacuum generators, etc. For use in testing and measuring applications, such as testing for leaks [See More]

• Valve Type: Relief

Valves. NOV's Valve Division manufactures top of the line Reset Relief Valves, Shear Relief Valves, Float Valves, and Gate Valves for the oil and gas industry. These product lines protect drilling equipment from pressure spikes and backflow, which can lead to premature failure of equipment if not... [See More]

• Valve Type: Lift Check; Check; Gate; Relief

• Media: Gas

High performance butterfly valves are the result of years of experience in the design and manufacture of products for a variety of applications. Our valves are designed and tested to meet or exceed the most exacting standard of our industries. If you have pressure and need a valve to hold it, you... [See More]

• Valve Type: Metal Seated; Butterfly; Relief
• Media: Powder Solids; Food Processing; Chemical

• Primary Material: Stainless Steel (optional feature); Steel (optional feature)
• Valve Size: 2.00 to 24.00

This safety valve is used to protect hydraulic circuits from unexpected pressure increases. Applications include disconnected pallet fixtures, where the temperature of a closed system could increase and cause hydraulic pressure to exceed acceptable operating limits. Poppet-type valve, directly... [See More]

• Valve Type: Relief
• Valve Size: 0.25 to 0.50

• Media: Hydraulic; Air; Compressed Air
• Maximum Pressure: 7500.00

The PRV over-and-underpressure relief valve is an indispensable component for guaranteeing atmospheric pressure in receiving and discharging vessels. The PRV is designed to avoid an explosion or implosion which can occur when an unacceptable level of pressure or vacuum arises inside the hopper or... [See More]

• Valve Type: Relief
• Media: Powder Solids; Air

• Primary Material: Aluminum
• Maximum Pressure: -0.29 to 0.65

Valve, Stainless Steel, Relief, [See More]

• Valve Type: Relief

The “MRV ” series back pressure and pressure relief valves help to maintain a set pressure or relieve excess pressure on the pump and system. The 2-port design allows each valve to be used both as a pressure relief and back pressure valve to ensure accurate metering and pump performance. [See More]

• Valve Type: Relief
• Number of Ports: 2

• Maximum Pressure: 0.00 to 150.00

CEME has always been a reference point for the ironing and steam cleaning world. The most important brands in this sector rely on CEME for electro valves, pumps, pressure gauges and safety valves, so as to guarantee the utmost efficiency and quality for their products.  . Temperature and... [See More]

• Valve Type: Relief; Safety
• Media Temperature: 356

• Media: Water; Steam; Air

The Bushing Valve is a check valve with a standard bushing housing. The valve is adaptable to many types of service applications. It has very little restriction and produces a low pressure drop. It can be used quite effectively in systems where flow and pressure drop are critical by the use of a... [See More]

• Valve Type: Directional; Metal Seated (optional feature); Lift Check; Back Flow; Check; Poppet; Relief; Anti-Siphon; Bushing Valve
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water (optional feature); Gas; Gasoline / Diesel Fuel (optional feature); High Purity (optional feature); LP Gas (optional feature); Natural Gas (optional feature); Sour Gas (optional feature); Specialty Corrosive (optional feature); Hydraulic; Steam; Liquids; Air; Chemical

• Primary Material: Brass / Bronze; Stainless Steel; Steel; Exotic Metal; Alloy 20, Alloy C-276, Titanium
• Valve Size: 0.50

It can be present to open any desired pressure between 5-75 PSI. If line pressure does not reach the set relief pressure, the valve remains closed. When the pressure exceeds the relief value, the valve opens and diverts the flow. It remains open until the pressure drops back to the desired value,... [See More]

• Valve Type: Relief
• Valve Size: 0.50

• Primary Material: PVC

SC Pressure Release Valves are available in normally open and normally closed configurations. All of the valves are air actuated and are compatible with most fluids including water and synthetic compounds. Seals are Buna-N as standard (-N). Substitute "-V" for Viton® seals or "-E" for EPR.Typically,... [See More]

• Valve Type: Relief
• Valve Size: 0.25

• Media: Water; Hot Water; Cold Water  ; Hydraulic
• Maximum Pressure: 5000.00

High Pressure Piping, Valves and Fittings. Based on the High-pressure valves and fittings to IG standards for pressure ratings of 325 and 700 bar, Chemac Inc offers these for pressure ratings of 500, 1600, 2500, 3200, 3600 and 4000 bar in similar construction with lens-type gaskets. Valves with... [See More]

• Valve Type: Control Valve; Angle; Butterfly; Check; Diaphragm; Globe; Piston; Relief

• Media: Water; Gas; Air

Function: pressure balanced pressure limitation valve, externally controlled or direct acting. Media: gaseous, liquid, highly viscous, contaminated. Body Materials: brass, aluminum, stainless steel, galvanized steel. Options: SAE connection, safety valve, mounting, special voltage, coil M 12 x 1,... [See More]

• Valve Type: Control Valve; Metal Seated; Metering; Relief; Underwater (optional feature); Coaxial Valve
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water; Wastewater; High Purity (optional feature); Specialty Corrosive (optional feature); Hydraulic; Steam (optional feature); Air; Breathable; Compressed Air; Chemical

• Primary Material: Steel
• Valve Size: 0.59

Protects pressure washer against extreme pressure build-up. Pop off protection. [See More]

• Valve Type: Relief
• Media: Water

• Primary Material: Brass / Bronze
• Valve Size: 0.38

Value added engineering-custom capabilities and 100 years of know how. Vertical integration means your vales are the highest quality and best value. Combine these two distinctions with world class specification tools and superior customer service and …your choice is clear, Specialty made in... [See More]

• Valve Type: Relief
• Valve Size: 0.38

• Primary Material: Brass / Bronze
• Maximum Pressure: 1500.00

The Ames ACV 920A-UL (Angle) Relief Valve meets all requirements for UL listed, FM Approved fire protection service. The design and features incorporated in the Ames ACV valves assure accurate control, dependable performance, and long life. Also Available: Model 920G-UL: Globe Pattern Single Chamber... [See More]

• Valve Type: Relief
• Media: Water; Hot Water; Cold Water  ; Potable Water

• Primary Material: Ductile Iron
• Valve Size: 3.00 to 8.00

IBT Industrial Solutions provides products and technical services for a complete line of pneumatic products. Our experience and expertise in the fluid power business, coupled with the strength and reach of our extensive distribution network give you the peace of mind that IBT is the right choice for... [See More]

• Valve Type: Relief; Lockout

• Media: Air

Ideal for applications where space is at a premium or where weight is important; the MPV has been designed to meet a wide range ofapplications. [See More]

• Valve Type: Gate; Relief; Sanitary
• Valve Size: 0.50

• Primary Material: Stainless Steel
• Number of Ports: 2

When performance under pressure is critical, the Accuseal ® Automated Relief Valve is a must, The Accuseal ARV design provides automatic or manual overpressure protection for steam boiler systems, assisting with venting for start-up and shutdown. [See More]

• Valve Type: Metal Seated; Ball; Relief
• Media: Gas; Natural Gas; Sour Gas; Specialty Corrosive; Chemical

• Primary Material: Steel; Exotic Metal; Low Alloy Chrome
• Valve Size: 1.00 to 2.00

Our Pressure Relief Valve Assembly specifically prevents system over-pressurization. It offers consistent protection to system components by diverting fluid flow automatically when inline pressure exceeds the set limit. Our assembly has a pressure setting of 5psi (0.3 bar) and is for 1/16"OD tubing. [See More]

• Valve Type: Relief
• Maximum Pressure: 5.00

• Primary Material: PEEK

Precision Back Pressure Regulator for Hygienic Service. For gas, liquid and mixed phase processes. Wide Range of working Pressures and Flows. Rugged 316 stainless steel Bar Stock Design with no Welded Fittings. Hygienic: No Crevices, <32Ra Finish. 3 Piece Low Dead Volume Design. Ports are the... [See More]

• Valve Type: Control Valve; Relief; Sanitary
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Hydraulic; Powder Solids (optional feature); Steam; Air; Breathable; Compressed Air; Chemical

• Primary Material: Aluminum; Brass / Bronze (optional feature); Cast Iron (optional feature); Ductile Iron (optional feature); Steel; Exotic Metal (optional feature)
• Valve Size: 0.50

Qosina is a leading supplier of Relief / Inflation Valve with 9/16 inch Diameter (14 mm), 1.9 - 2.3 psi CP. Get fast shipping and volume discounts on Relief Valves parts. [See More]

• Valve Type: Relief
• Media: Water; Air

• Primary Material: Stainless Steel; PP; Acrylic, Al, PP, Silicone, SS
• Maximum Pressure: 1.90 to 2.30

The Red Valve Series RSR Pressure Relief Valve is designed specifically for slurry applications. It is a reliable relief valve available for slurry service, venting surge pressures in the system, or to maintain system pressure. The valve operates very simply – making use of a spring loaded... [See More]

• Valve Type: Control Valve; Pinch; Relief
• Media: Water; Ground Water; Wastewater; Powder Solids; Slurries

• Primary Material: Ductile Iron; Rubber; Sleeve Options: Gum Rubber, EPDM, Neoprene, Hypalon, Buna-N, Viton
• Valve Size: 1.00 to 12.00

Pressure control valves limit the maximum amount of pressure in a complete or branch hydraulic circuit and provide pressure ranges from minimum to 365 psi (full range), and from minimum to 9,000 + psi. Defining the maximum system pressure achievable is the role of a relief valve. Even for circuits... [See More]

• Valve Type: Relief
• Valve Size: 0.24 to 1.26

• Media: Hydraulic
• Maximum Pressure: 362.59 to 4568.69

The KZValve QX Series 3-Way, Side Load, Full Port, Ball Valves (On-On Diverter) are engineered for actuation and designed to work with the KZValve actuators. These reliable valves are proven performers season after season. • 3/4", 1" and 11/2" full port valves. • Ball: 316 stainless steel. [See More]

• Valve Type: Control Valve; Ball; Relief
• Media: Water; Gas; Oil; Air

• Primary Material: PP
• Valve Size: 1.00

Relief Valve [See More]

• Valve Type: Relief; Relief Valve

• Connection Description: Threaded; Threaded 1/8\" NPT

SUPERLOK bleed valves can be used on instrumentation devices. such as multivalve manifolds or gauge valves to vent signal line. pressure to atmosphere Before removal of an instrument or to assist. in calibration of control devices. ■ Compact for convenient installation. ■ Back stop screw... [See More]

• Valve Type: Relief
• Valve Size: 0.12

• Primary Material: Stainless Steel
• Maximum Pressure: 6085.00 to 10000.00

3-way poppet valve with choices of directional or pressure control.. Safety Pop-off valves are also avaialble. [See More]

• Valve Type: Control Valve; Relief

Features. Service for liquids and gases for pressures up to 200,000 psi. Hydraulically-operated. Replaceable seat and packings. Hydraulic control pressure of 1,000-1,500 psi. Hydraulic control ports are ¼NPT. Options. Stainless steel valves for water service. Custom design available. [See More]

• Valve Type: Relief; Release Valve
• Media: Water; Gas; Air

• Primary Material: Stainless Steel
• Maximum Pressure: 200000.00

The Model 8014, part of the new 8010 series, incorporates all the manufacturing knowledge and experience that has earned Barksdale a reputation for top quality and reliability in the market. This unit is a 3/4" NPT relief valve intended for use in hydraulic systems. All stainless steel internals and... [See More]

• Valve Type: Relief
• Media: Hydraulic

• Primary Material: Ductile Iron
• Maximum Pressure: 5500.00

Pressure safety solution for a pressure reducing valve (PRV) station. Protects downstream piping from experiencing unsafe excess pressures. Sizes from 1 ½ – 8 ” | DN40 – DN200. Pressures up to 400 psi | 2758 kPa | 28 bar [See More]

• Valve Type: Relief
• Valve Size: 1.50 to 8.00

• Primary Material: Ductile Iron; Stainless Steel (optional feature)
• Maximum Pressure: 400.00

Check Valve, Brass. Features. Light Cracking Pressure. Brass Body with Stainless Wetted Parts. O-ring on Poppet for a Leak Proof Seal. Solid Body Construction, Won ’t Come Apart During Installation [See More]

• Valve Type: Check; Relief; Safety
• Media: Water; Hot Water; Cold Water  

• Primary Material: Brass / Bronze
• Valve Size: 0.25 to 0.75

Pressure reducing valve with low flow by-pass. Automatically reduces higher unregulated upstream pressure to a lower steady downstream pressure (adjustable) regardless of fluctuations in inlet pressure or flow. The low flow by-pass is accomplished by using the Model C150E as a primary part of the... [See More]

• Valve Type: Control Valve; Angle; Relief
• Actuation: Pilot

• Valve Size: 1.25 to 36.00
• Connection Description: Threaded

bull; <tol >0.25% full scale accuracy. • <b >4 to 20 mA Input </b >. • High and low split ranging. • Field-selectable features. • Direct and reverse acting input and output. Transducers are designed for valve actuating, air cylinders, and controllers. The 4 to... [See More]

• Valve Type: Relief

• Media: clean, dry air

VER-SPG. PROPORTIONAL PRESSURE RELIEF VALVES WITH ON BOARD ELECTRONICS. Sizes R06 NFPA thru R10 NFPA. Max Pressure 5000 PSI (350 bar). Max Flow Rate 132 gpm (500 l/min). Description. VER*SPG valves are Proportional pilot operated pressure relief valves with On-board Digital amplifier for... [See More]

• Valve Type: Relief
• Maximum Pressure: 1015.26 to 5076.32

• Media: Hydraulic
• Actuation: Pilot

Features. High pressure range.(Max setting pressure: 4.2Mpa [609.16psi]). Connecting outlet port is the best to recover exhaust gas/liquid. Cracking pressure ’s setting is done before delivering. Applications. Machine Tools ：Milling machine, NC lathe, laser processing machine etc. [See More]

• Valve Type: Relief
• Media: Water; Air

• Primary Material: Brass / Bronze; Stainless Steel
• Valve Size: 0.12 to 0.25

CIRCOR Energy offers several lines of spring-loaded safety relief valves ideally suited for pipe and pressure vessel protection in Upstream, Midstream and Downstream Hydrocarbon applications. Useful for air, gas, liquid and mixed phase services, these valves are designed for reliable operation, long... [See More]

• Valve Type: Relief; Safety
• Media: Gas; LP Gas; Natural Gas; Air; Compressed Air; Chemical

• Primary Material: Steel
• Valve Size: 0.25 to 3.00

The Zurn Wilkins P1520XL Pressure Relief Valve installs on cold water service lines to protect against excessive pressure buildup. These devices are for pressure only and should be used in conjunction with other temperature limiting devices. To view all options, see the Specification Sheet. Features... [See More]

• Valve Type: Relief; Anti-Siphon

• Media: Water

The Series-22 Quarter-Turn Dia-Cam valve is a high flow capacity pinch valve, designed for hard-to handle fluids, especially slurries. The valve interior consists of a fabric reinforced elastomeric or PTFE-lined Diaphragm Spool... the only wetted component of the valve. Two opposing gear-driven... [See More]

• Valve Type: Pinch; Relief
• Valve Size: 0.50 to 3.00

• Media: Water
• Maximum Pressure: 3500.00

TESCOM ™ Wega Mini cylinder pressure regulator is designed for gas purities up to 6.0 and offers a lightweight & compact integrated relief valve design. Ideal for use in lecture bottle and mobile applications. [See More]

• Valve Type: Relief
• Media: Gas; High Purity; Specialty Corrosive

• Primary Material: Brass / Bronze (optional feature); Stainless Steel (optional feature)
• Valve Size: 0.24

A Relief Valve, or Pop-Off Valve, is a secondary pressure regulating device used to back up the primary regulating device. If the primary regulating device fails to by-pass at a set system pressure, the relief valve will open and allow liquid to flow freely. A relief valve can save costly pump and... [See More]

• Valve Type: Relief
• Media: Water

• Primary Material: Brass / Bronze
• Valve Size: 0.75

The Alfa Laval SB Pressure Exhaust Valve is a regulating valve that automatically reduces the working pressure in brewery, food, dairy and beverage process tanks as the pressure in the vessel increases. The valve is an integral part of SCANDI BREW ® tank top system. Safe, effective pressure... [See More]

• Valve Type: Relief
• Valve Size: 1.50 to 3.00

• Primary Material: Stainless Steel
• Maximum Pressure: 7.25 to 58.02

The DEP4 is a cast steel direct acting bellows sealed excess pressure valve. The standard version as an EPDM diaphragm (limited to 125 ° C) and is suitable for steam and water applications. Also available for oil applications is a Nitrile rubber diaphragm (suffix 'N ' i.e. DEP4B1N which is... [See More]

• Valve Type: Control Valve; Bellows; Relief
• Media: Water; Steam

• Primary Material: Steel; Cast Steel
• Maximum Pressure: 4.35 to 217.56

STANDARD FEATURES. Hydraulically balanced, hard chrome plated spool. Handle can be installed in “up ” or “down ” position. Detent release pressure adjustable from 1000 to 2000 PSI. For use with system flows up to 25 GPM. Relief valve adjustable up to 2750 PSI. Tandem center... [See More]

• Valve Type: Directional; Spool; Relief
• Media: Hydraulic

• Primary Material: Cast Iron; Steel
• Valve Size: 0.50 to 0.75

A screw-in, cartridge-style, direct-acting, differential area, poppet-type, bi-directional relief valve, intended for use as a pressure limiting device in demanding hydraulic circuits. [See More]

• Valve Type: Cartridge; Poppet; Relief
• Media: Hydraulic

• Primary Material: Aluminum
• Valve Size: 0.25 to 0.38

The GD-10/10F is a lightweight direct-acting diaphragm valve used primarily for pneumatic tool air supply and non-hazardous gas regulation. Screwed connections make it easy to support in position without external sensing lines or other parts. Zinc or aluminum bodies eliminate rust and scale. Plug,... [See More]

• Valve Type: Control Valve; Metal Seated; Diaphragm; Relief
• Media: Gas; Air; Compressed Air

• Primary Material: Aluminum (optional feature); Exotic Metal (optional feature)
• Valve Size: 0.25 to 1.00

Founded in 1998, FITOK Group has been an industry-leading developer and manufacturer of superior quality instrumentation valves and fittings, having our R &D centers, manufacturing facilities, warehousing and service locations in Offenbach Germany, Texas USA, Shenzhen China and Dubai UAE. We... [See More]

• Valve Type: Relief
• Valve Size: 0.14 to 0.25

• Media: Water; Air; Compressed Air
• Maximum Pressure: 6000.00

Flows Rates: Flow calculated based upon: Air @ 15 °C and 1013 mbar and are for guidance only, contact Seetru for help in sizing to your specifications. Product Description: 10mm Nominal Bore Enclosed Discharge Safety Relief Valve for Cryogenic and liquefied Gas Applications. Notes: Maximum... [See More]

• Valve Type: Cryogenic; Relief; Safety
• Valve Size: 0.38 to 0.75

• Primary Material: Brass / Bronze; Stainless Steel
• Maximum Pressure: 12.04 to 446.14

Heavy Duty Relief Valves are easily maintained for long life. Features. Use with any non-corrosive, non-toxic industrial gas. Easily maintained for long life. Equipped with 3/4 in. NPT male inlet, 3/4 in. NPT female outlet [See More]

• Valve Type: Relief
• Valve Size: 0.38 to 0.75

• Media: Gas; Non-corrosive, Non-toxic Industrail Gas
• Maximum Pressure: 20.00 to 60.00

. Prevent System Over-Pressurization. Upchurch Scientific Pressure Relief Valves are ideal for preventing system over-pressurization. These products protect system components by diverting fluid flow automatically when pressure exceeds the set limit. Choose between our preset 100 psi (7 bar) and 5... [See More]

• Valve Type: Relief

The MultiFunction Valve is an accessory to the Walchem family of metering pumps. It is specifically designed to be mounted and used with the E Series electronic metering pumps. The MultiFunction Valve combines the air vent and bleed capabilities of the manual air vent valve with anti-siphon, back... [See More]

• Valve Type: Relief
• Valve Size: 0.25

• Primary Material: PVC
• Number of Ports: 2

HC, KC and JPC are tow way pressure compensators for modular assembling with on/off and proportional directional control valves. They keep a constant differential pressure across port P and port A or B in order to maintain a constant flow rate against pressure variations. Automatic piloting... [See More]

• Valve Type: Control Valve; Relief
• Valve Size: 0.63

• Media: Hydraulic
• Maximum Pressure: 5076.32

Series 340, 340X Automatic Reseating Temperature and Pressure Relief Valves are used in commercial water heater applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters. They feature a bronze body with NPT male inlet and NPT female outlet... [See More]

• Valve Type: Relief
• Valve Size: 1.50

• Media: Water

Vacuum pressure relief module for venting to the outside for vacuum pump protection. The TVS21 vacuum pressure relief module is used to protect the vacuum pump from excess pressure. The vacuum pressure relief module type TVS21 protects the pump from damages by venting the excess pressure safely into... [See More]

• Valve Type: Relief; Anti-Siphon
• Media: Gas; High Purity; Air

• Primary Material: Aluminum; Brass / Bronze; Stainless Steel
• Valve Size: 0.47

The SV101 is a Dri-Control liquid pressure relief valve employing a unique spring-loaded diaphragm that automatically opens when the inlet pressure reaches a manually set point. The virgin PTFE body and diaphragm provides the greatest degree of inertness, and allows for a high temperature... [See More]

• Valve Type: Relief
• Media: Water; Ink & Toner in Printing Ink Systems

• Primary Material: PTFE
• Valve Size: 0.25

20 GPM Adjustable Relief Valve [See More]

• Valve Type: Control Valve; Cartridge; Relief
• Connection Description: 10ORBF

• Maximum Pressure: 3500.00

Relief Valve. Compact body for installation in small space. Cracking pressure adjustable externally. Lock wire capability to maintain pressure relief setting. 100% Factory Tested crack and reseal performance. [See More]

• Valve Type: Relief

• Media: Hydraulic

Sure Seal's Superior Encapsulated design results in total encapsulation of the seat and disc/stem, providing the ultimate in contamination free service. In addition, every Sure Seal valve is tested to 110% of full pressure rating!. Stem is standard 255, a duplex stainless which is more corrosion... [See More]

• Valve Type: Butterfly; Relief; Sanitary
• Media: Food Processing; Chemical

• Primary Material: Aluminum (optional feature); Ductile Iron (optional feature); Stainless Steel (optional feature)
• Valve Size: 1.00 to 24.00

Valve, Stainless Steel, Relief, [See More]

• Valve Type: Relief

CEME has always been a reference point for the ironing and steam cleaning world. The most important brands in this sector rely on CEME for electro valves, pumps, pressure gauges and safety valves, so as to guarantee the utmost efficiency and quality for their products.  . Temperature and... [See More]

• Valve Type: Relief; Safety
• Media Temperature: 356

• Media: Water; Steam; Air

The Connector Valve is a check valve with a hex nipple or connector housing. It is designed to be used in installations where check valves with male pipe threads are required. The Connector Valve is adaptable for use as a check valve, vacuum breaker, or low pressure relief valve. Two valves used in... [See More]

• Valve Type: Directional; Metal Seated (optional feature); Lift Check; Back Flow; Check; Poppet; Relief; Anti-Siphon
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water (optional feature); Gas; Gasoline / Diesel Fuel (optional feature); High Purity (optional feature); LP Gas (optional feature); Natural Gas (optional feature); Sour Gas (optional feature); Specialty Corrosive (optional feature); Steam; Liquids; Air; Chemical

• Primary Material: Aluminum (optional feature); Brass / Bronze; Stainless Steel; Steel; Exotic Metal; Alloy 20, Alloy C-276, Titanium
• Valve Size: 0.50

The DRV series adjustable hydraulic relief valves are available in five pressure ranges between 100 psig and 60,000 psig. Constructed of Stainless steel the valves can be used for most industrial fluids including water. The valve once set will not allow system pressure to exceed design limitations. [See More]

• Valve Type: Blow Off; Relief
• Media: Water; Hot Water; Cold Water  ; Gas; Hydraulic

• Primary Material: Stainless Steel
• Valve Size: 0.25

Pneumatically Actuated Pressure Maintaining Valve. Holds the discharge pressure constant, independent of the counter pressure. Recommended for multi-consumer operation. No pressure loss in case of switching. to additional consumers thus increasing. § Safety of the service personnel. §... [See More]

• Valve Type: Relief

• Media: Water; Gas; Air

Function: pressure balanced pressure limitation valve, externally controlled or direct acting. Media: gaseous, liquid, highly viscous, contaminated. Body Materials: brass, aluminum, stainless steel, galvanized steel. Options: SAE connection, safety valve, mounting, special voltage, coil M 12 x 1,... [See More]

• Valve Type: Control Valve; Metal Seated; Metering; Relief; Underwater (optional feature); Coaxial Valve
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water; Wastewater; High Purity (optional feature); Specialty Corrosive (optional feature); Hydraulic; Steam (optional feature); Air; Breathable; Compressed Air; Chemical

• Primary Material: Steel
• Valve Size: 1.26

Adjustable pressure. Forged brass housing, stainless steel ball and valve seat. Special seals for maximum heat and chemical resistance.. Valve member rides on elastomeric cushion, eliminating metal to metal contact, a common cause of regulator failure.. Quickly rebuildable with repair kit. Can be... [See More]

• Valve Type: Relief
• Media: Water

• Primary Material: Brass / Bronze
• Valve Size: 0.25

Value added engineering-custom capabilities and 100 years of know how. Vertical integration means your vales are the highest quality and best value. Combine these two distinctions with world class specification tools and superior customer service and …your choice is clear, Specialty made in... [See More]

• Valve Type: Relief
• Valve Size: 0.38

• Primary Material: Brass / Bronze
• Maximum Pressure: 1500.00

Designed to meet the changing needs of the process industry, the new Series 3 Pressure Relief valve is a full-bore self-draining device ranging in size from 1" - 4". Available in manual and actuated models. The Series 3 valves have a tamper-proof pressure setting mechanism which can be adjusted... [See More]

• Valve Type: Gate; Relief; Sanitary
• Valve Size: 1.00

• Primary Material: Stainless Steel
• Number of Ports: 2

Our Pressure Relief Valves are ideal for preventing system over-pressurization. This Pressure Relief assembly diverts fluids automatically when inline pressure exceeds set limits. The P-612 Pressure Relief "T" Assembly is for 1/16" Tubing OD. This Assembly comes with a P-201 Flangeless Fitting. It... [See More]

• Valve Type: Relief

Precision Back Pressure Regulator. For gas & mixed phase processes. Rugged Bar Stock Design. Available in ¼ inch through 1 inch sizes. SS316 standard with Hastelloy C optional. Diaphragms available in PTFE, Hastelloy, SS316, and polyimide. The GS series is specifically designed for a... [See More]

• Valve Type: Control Valve; Relief
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Hydraulic; Powder Solids (optional feature); Steam; Air; Breathable; Compressed Air; Chemical

• Primary Material: Aluminum; Brass / Bronze (optional feature); Cast Iron (optional feature); Ductile Iron (optional feature); Stainless Steel; Steel; Exotic Metal (optional feature); Acetal (optional feature); PVC (optional feature); CPVC (optional feature); PTFE (optional feature); PVDF (optional feature)
• Valve Size: 0.12 to 1.00

Qosina is a leading supplier of T Pressure Relief Valve with 0.25 inch OD x 0.281 inch OD x 0.25 inch OD, 2.5 psi, +/- 20% Crack Tolerance. Get fast shipping and volume discounts on Relief Valves parts. [See More]

• Valve Type: Relief
• Media: Water; Air

• Primary Material: Stainless Steel; PP; PC, PP, Silicone, SS
• Maximum Pressure: 2.50

By regulating downstream pressure in a branch circuit, proportional pressure reducing valves allow this set limit to be adjusted by electronic control. Rexroth reducing valves are optimized to reduce the effect of pressure changes due to varying flow rates. Their excellent transient response... [See More]

• Valve Type: Solenoid; Relief
• Valve Size: 0.24 to 1.26

• Media: Hydraulic
• Maximum Pressure: 3625.94 to 4568.69

Relief Valve [See More]

• Valve Type: Relief; Relief Valve

• Connection Description: Threaded; Threaded 1/8\" NPT

SUPERLOK purge valves are manual bleed, vent, or drain valves. One-quarter turn with a wrench from finger-tight obtains leaktight closure on first makeup. Snugging with a wrench ensures closure to the rated pressure with subsequent makeups. ■ Compact for convenient installation. ■ Vent... [See More]

• Valve Type: Relief
• Valve Size: 0.12 to 0.31

• Primary Material: Stainless Steel
• Maximum Pressure: 2500.00 to 4000.00

Pressure safety solution for a pressure reducing valve (PRV) station. Protects downstream piping from experiencing unsafe excess pressures. Sizes from 1 ½ – 8 ” | DN40 – DN200. Pressures up to 250 psi | 1724 kPa | 17 bar [See More]

• Valve Type: Control Valve; Relief
• Valve Size: 1.50 to 8.00

• Primary Material: Ductile Iron; Stainless Steel (optional feature)
• Maximum Pressure: 250.00

Check Valve, Stainless Steel. Features. Light Cracking Pressure. Stainless Body with Stainless Wetted Parts. O-ring on Poppet for a Leak Proof Seal. Solid Body Construction, Won ’t Come Apart During Installation [See More]

• Valve Type: Check; Relief; Safety
• Media: Water; Hot Water; Cold Water  

• Primary Material: Stainless Steel
• Valve Size: 0.25 to 0.75

PRESSURE REDUCING VALVE WITH CHECK. Reduces high upstream pressure to lower downstream pressure. Check feature prevents reverse flow in the event of pressure reversal. Configurations: Model C - Full Port Globe Style (Flanged or Threaded). Model CF - Reduced Port Globe Style (Flanged). Model CA -... [See More]

• Valve Type: Control Valve; Angle; Relief
• Actuation: Pilot

• Valve Size: 1.25 to 36.00
• Connection Description: Threaded

bull; <tol >0.25% full scale accuracy. • <b >4 to 20 mA Input </b >. • High and low split ranging. • Field-selectable features. • Direct and reverse acting input and output. Transducers are designed for valve actuating, air cylinders, and controllers. The 4 to... [See More]

• Valve Type: Relief

• Media: clean, dry air

VER03M. PROPORTIONAL PRESSURE RELIEF VALVES. Mounting Surface NFPA R03 (D03) (ISO 6264-03-04-*-97). Max Pressure 5000 PSI (350 bar). Max Flow Rate 1.32 gpm (5 l/min). Description. VER03M is a direct operated proportional relief valve, with mounting in compliance with NFPA/T3.5.1 R2-2002 and ISO... [See More]

• Valve Type: Poppet; Solenoid; Relief
• Maximum Pressure: 1015.26 to 5076.32

• Media: Hydraulic

Features. High precision cracking performance, high sealability. Small and light design is ideal for fluid that exhaust to outside. Various port sizes. Cracking pressure ’s setting is done before delivering. Applications. Machine Tools ：Milling machine, NC lathe, laser processing... [See More]

• Valve Type: Relief
• Media: Water; Air

• Primary Material: Brass / Bronze; Stainless Steel
• Valve Size: 0.12 to 1.00

The Zurn Wilkins P4000A Pressure Relief Valve prevents pressure buildup in a fire protection system or other closed type system whenever the line pressure exceeds the setting of the spring caused by pumps, elevated piping and thermal expansion. To view all options, see the Specification Sheet. [See More]

• Valve Type: Relief; Anti-Siphon

• Media: Water

TESCOM ™ Wega 1 single-stage and Wega 2 dual-stage cylinder pressure regulators are designed for gas purities up to 6.0 and offer relief valve integrated into body for low internal gas volume. Both versions are lightweight and compact. Ideal for use in reducing high pressure gases in storage... [See More]

• Valve Type: Metering (optional feature); Relief
• Media: Gas; High Purity

• Primary Material: Brass / Bronze (optional feature); Stainless Steel (optional feature)
• Valve Size: 0.24

A Relief Valve, or Pop-Off Valve, is a secondary pressure regulating device used to back up the primary regulating device. If the primary regulating device fails to by-pass at a set system pressure, the relief valve will open and allow liquid to flow freely. A relief valve can save costly pump and... [See More]

• Valve Type: Relief
• Media: Water

• Primary Material: Brass / Bronze
• Valve Size: 0.37

To prevent damage to the tank and help ensure safe operations, the Alfa Laval SB Pressure Relief Valve protects a pressurized tank during an overpressure event. It is designed for hygienic processes in the brewery, dairy, food and beverage industries. The valve can be integrated with a SCANDI BREW... [See More]

• Valve Type: Relief; Safety; Sanitary

• Primary Material: Stainless Steel

The DEP7 is an SG iron direct acting bellows sealed excess pressure valve. The standard version has an EPDM diaphragm limited to 125 ° C and is suitable for steam and water applications. Also available for oil applications is a Nitrile rubber diaphragm (suffix 'N ' i.e. DEP7B1N which is limited... [See More]

• Valve Type: Control Valve; Bellows; Relief
• Media: Water; Steam

• Primary Material: SG Iron
• Valve Size: 0.50 to 2.00

STANDARD FEATURES. Economical monoblock construction of high tensile strength gray cast iron. Load check on each spool. Hard Chrome Plated Spools. No face seals on spools. Adjustable cartridge relief. Power beyond available. 4 Position Float Spool for loader boom. 4 Position Regen Spool for loader... [See More]

• Valve Type: Directional; Spool; Relief
• Media: Hydraulic

• Primary Material: Cast Iron; Steel
• Maximum Pressure: 3000.00

A screw-in, cartridge-style, direct-acting, differential area, poppet-type, bi-directional relief valve. [See More]

• Valve Type: Cartridge; Poppet; Relief
• Media: Hydraulic

• Primary Material: Aluminum
• Valve Size: 0.25 to 0.38

The GD-200/200H valves offer high capacity and highly accurate control, with a large, cupped diaphragm for a long stroke. Compact and rugged, the GD-200 ’s composition valve and bronze metal seat mean high performance over a longer service life. Well suited to non-viscous liquid pressure... [See More]

• Valve Type: Control Valve; Metal Seated; Diaphragm; Relief
• Media: Water; Hot Water; Cold Water  ; Air; Compressed Air

• Primary Material: Ductile Iron
• Valve Size: 2.00 to 6.00

Flows Rates: Flow calculated based upon: Air @ 15 °C and 1013 mbar and are for guidance only, contact Seetru for help in sizing to your specifications. Product Description: 13mm Nominal Bore Atmospheric Discharge Safety Relief Valve For Compressed Air & Gases. Notes: Relieving pressure is set... [See More]

• Valve Type: Relief; Safety
• Media: Gas; Air

• Primary Material: Brass / Bronze
• Valve Size: 0.50 to 0.75

. Nonmetallic and Biocompatible. Low Cracking Pressure of 1 psi (0.07 bar). Excellent Chemical Resistance. Upchurch Scientific ® Inline Check Valves provide excellent backflow protection for sensitive equipment along with outstanding chemical resistance only available from PEEK polymer and... [See More]

• Valve Type: Check; Relief

Anti-Syphon Valve. Enables feeding into suction/negative pressure applications or metering fluids “downhill ”. Back Pressure Valve. Provides accurate metering of fluids into low or open discharge pressures. Pressure Relief Valve. Adjustable between 30 psi and 125 psi [See More]

• Valve Type: Relief
• Valve Size: 0.50

• Primary Material: PVC
• Maximum Pressure: 150.00

LIM, LIR, and LIC are pressure control valves composed by a 2-way cartridge housed in a standard recess and by a functional "cover". The cartridge is composed by a poppet hydraulically piloted by means of internal connections in the cover and sliding into a drilled sleeve; cracking pressure value... [See More]

• Valve Type: Control Valve; Cartridge; Relief
• Valve Size: 0.63 to 3.15

• Media: Hydraulic
• Maximum Pressure: 5076.32

Series 40L, 40XL Automatic Reseating Temperature and Pressure Relief Valves are used in commercial water heater applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters. They feature a bronze body with NPT male inlet and NPT female outlet... [See More]

• Valve Type: Relief
• Valve Size: 0.75 to 1.00

• Media: Water

4.5 GPM Adjustable Relief Valve [See More]

• Valve Type: Control Valve; Cartridge; Relief
• Connection Description: 6ORBF

• Maximum Pressure: 3500.00

Designed and engineered for demanding applications in corrosive, sanitary and ultra-pure processes. Unique benefits in design and a wide range of options allows the Sure Seal LBF lined butterfly valve to provide superior service to the chemical and industrial market. Our ISO 9001 quality system... [See More]

• Valve Type: Butterfly; Relief; Sanitary
• Media: Wastewater; Chemical

• Primary Material: Ductile Iron (optional feature); Stainless Steel (optional feature)
• Valve Size: 2.00 to 24.00

H9 Series, SS Relief Valve, Let-Lok [See More]

• Valve Type: Relief

CEME has always been a reference point for the ironing and steam cleaning world. The most important brands in this sector rely on CEME for electro valves, pumps, pressure gauges and safety valves, so as to guarantee the utmost efficiency and quality for their products.  . Temperature and... [See More]

• Valve Type: Relief; Safety
• Media Temperature: 356

• Media: Water; Steam; Air

Flange Insert valves are the ultimate check valves in flanged systems. They provide the simplest most economical way to install check valves in a piping system, the valve body automatically positions the valve and holds it in place while bolts are being installed and tightened. All that is required... [See More]

• Valve Type: Directional; Metal Seated (optional feature); Lift Check; Back Flow; Check; Poppet; Relief; Anti-Siphon
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water (optional feature); Gas; Gasoline / Diesel Fuel (optional feature); High Purity (optional feature); LP Gas (optional feature); Natural Gas (optional feature); Sour Gas (optional feature); Specialty Corrosive (optional feature); Hydraulic; Steam; Liquids; Air; Chemical

• Primary Material: Aluminum (optional feature); Brass / Bronze; Stainless Steel; Steel; Exotic Metal; PVC; PTFE; FEP Encapsulator
• Valve Size: 0.50

Pneumatically High Pressure Switching Valve. ß Mode of operation: Main valve is closed by pneumatically short sotroke cylinder against pressure spring. ß Switchable against pressure. ß Multistage possible. ß Switching positions: Without enery closed (Standard) or without... [See More]

• Valve Type: Control Valve; Relief

• Media: Water; Gas; Air

Function: pressure balanced pressure limitation valve, externally controlled or direct acting. Media: gaseous, liquid, highly viscous, contaminated. Body Materials: brass, aluminum, stainless steel, galvanized steel. Options: SAE connection, safety valve, mounting, special voltage, coil M 12 x 1,... [See More]

• Valve Type: Control Valve; Metal Seated; Metering; Relief; Underwater (optional feature); Coaxial Valve
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water; Wastewater; High Purity (optional feature); Specialty Corrosive (optional feature); Hydraulic; Steam (optional feature); Air; Breathable; Compressed Air; Chemical

• Primary Material: Steel
• Valve Size: 1.26

Value added engineering-custom capabilities and 100 years of know how. Vertical integration means your vales are the highest quality and best value. Combine these two distinctions with world class specification tools and superior customer service and …your choice is clear, Specialty made in... [See More]

• Valve Type: Relief
• Valve Size: 0.25 to 0.38

• Primary Material: Brass / Bronze
• Maximum Pressure: 1500.00

Equilibar's Research Series back pressure regulator offer precision performance for high pressure applications up to 5000 psig. These regulators provide stable inlet pressure across widely varying flow rates, for liquid, gas, and mixed phase fluids. We can provide diaphragms of Stainless Steel 316,... [See More]

• Valve Type: Control Valve; Relief
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Hydraulic; Powder Solids (optional feature); Steam; Air; Breathable; Compressed Air; Chemical

• Primary Material: Stainless Steel (optional feature); Steel; Exotic Metal (optional feature)
• Valve Size: 0.12

Qosina is a leading supplier of T Pressure Relief Valve with 0.25 inch OD x 0.281 inch OD x 0.25 inch OD, 8 psi, +/- 25% Crack Tolerance. Get fast shipping and volume discounts on Relief Valves parts. [See More]

• Valve Type: Relief
• Media: Water; Air

• Primary Material: Stainless Steel; PP; PC, PP, Silicone, SS
• Maximum Pressure: 8.45

Proportional pressure relief valves limit the pressure in a hydraulic circuit and allow this set limit to be adjusted by electronic control. While relieving pressure, excess flow is returned to a hydraulic reservoir tank, to improve machine efficiency and manufacturing productivity. Rexroth has... [See More]

• Valve Type: Solenoid; Relief
• Valve Size: 0.24 to 1.26

• Media: Hydraulic

Relief Valve [See More]

• Valve Type: Relief; Relief Valve

• Connection Description: Threaded; Threaded 3/8\" NPT

Features. ■ Compact design. ■ Cracking pressure adjustable externally. ■ Lock wire feature secures a given pressure setting. ■ Each and every valve is tested at the factory. Set Pressure. Set pressure is the upstream pressure at which the first indication of flow occurs. Set... [See More]

• Valve Type: Relief
• Valve Size: 0.25 to 0.50

• Primary Material: Stainless Steel
• Maximum Pressure: 300.00 to 6000.00

Unloader with 2.2 mm Injector, optional banjo fittings. Reduces cost - eliminates the need for fittings and bypass hose. Compact design - features forged brass body and hardware. Versatile - mounts in seconds to either side of pump manifold. Adjustable unloader valve - trapped pressure type with... [See More]

• Valve Type: Relief; Safety
• Media: Water; Hot Water; Cold Water  

• Primary Material: Brass / Bronze
• Valve Size: 0.38 to 0.50

Pressure Reducing Valve & Back Pressure Valve allows flow as long as upstream pressure exceeds backpressure setting. Maintains a lower steady downstream pressure regardless of fluctuations in the inlet pressure or flow, as long as backpressure on system is maintained. Configurations: Model C -... [See More]

• Valve Type: Control Valve; Angle; Relief
• Actuation: Pilot

• Valve Size: 1.25 to 36.00
• Connection Description: Threaded

bull; For applications requiring up to 1.25 scfm forward flow capacity. • Serial interface. • Digital or analog inputs. • Analog monitor output. • Single-loop control. • Forward flow 1.25 scfm at 100 psi. • Weather proof housing. • Digital display units availbale. [See More]

• Valve Type: Relief

VER03MG. PROPORTIONAL PRESSURE RELIEF VALVES WITH ON BOARD ELECTRONICS. Mounting Surface NFPA R03 (D03) (ISO 6264-03-04-*-97). Max Pressure 5000 PSI (350 bar). Max Flow Rate 1.32 gpm (5 l/min). Description. The VER03MG direct operated Proportional Relief Valve, with On-Board Digital Amplifier... [See More]

• Valve Type: Solenoid; Relief
• Maximum Pressure: 1015.26 to 5076.32

• Media: Hydraulic

Features. High precision cracking performance, high sealability. Deflector cap controls direction of blow-out when it reliefs. In exposure use environment , FRC reduce the invasion of foreign substance into valve . Cracking pressure ’s setting is done before delivering. Applications. Machine... [See More]

• Valve Type: Relief
• Media: Water; Air

• Primary Material: Aluminum
• Valve Size: 0.12 to 0.75

The Zurn Wilkins P1000A Pressure Relief Valve prevents over-pressure of storage tanks, and is available in a variety of pressure relief settings for installation versatility. To view all options, see the Specification Sheet. Features And Benefits. Pressure Relief Valve set at 125 psi. Prevents... [See More]

• Valve Type: Relief; Anti-Siphon

• Media: Water

TESCOM ™ Regulus 4 dual stage pressure reducing regulator is extremely sensitive (mbar range) for gas purity up to 5.0 and offers integrated relief valve. Ideal use for non-corrosive gases including oxygen and product testing applications. [See More]

• Valve Type: Relief
• Media: Gas

• Primary Material: Aluminum
• Valve Size: 0.75

A Relief Valve, or Pop-Off Valve, is a secondary pressure regulating device used to back up the primary regulating device. If the primary regulating device fails to by-pass at a set system pressure, the relief valve will open and allow liquid to flow freely. A relief valve can save costly pump and... [See More]

• Valve Type: Relief
• Media: Water

• Primary Material: Stainless Steel
• Valve Size: 0.37

STANDARD FEATURES. Economical monoblock construction of high tensile strength gray cast iron. Load check on each spool. Hard Chrome Plated Spools. No face seals on spools. Adjustable cartridge relief. Power beyond available. 4 Position Series Float Spool for loader boom. 4 Position Regen Spool for... [See More]

• Valve Type: Directional; Spool; Relief
• Media: Hydraulic

• Primary Material: Cast Iron; Steel
• Maximum Pressure: 3000.00

A screw-in, cartridge-style, pilot-operated, two-stage, hydraulic relief valve with reverse fl ow check valve. It is intended for use as a pressure limiting device in demanding hydraulic circuits which require fast response, low hysteresis, low leakage, low pressure overshoot and reverse free fl ow... [See More]

• Valve Type: Cartridge; Relief
• Media: Hydraulic

• Primary Material: Aluminum
• Valve Size: 0.38 to 0.50

The GD-2000K is an ideal choice when set-point changes are frequent, access to the valve is difficult and steam quality is poor. The GD-2000K comes with either NPT or flanged connections for quick, easy installation. It also comes with a durable ductile iron body and features double stainless steel... [See More]

• Valve Type: Control Valve; Metal Seated; Diaphragm; Relief
• Media: Steam

• Primary Material: Ductile Iron
• Valve Size: 0.50 to 4.00

Flows Rates: Flow calculated based upon: Air @ 15 °C and 1013 mbar and are for guidance only, contact Seetru for help in sizing to your specifications. Product Description: 15mm Nominal Bore Atmospheric Discharge Safety Relief Valve For Compressed Air & Gases. Notes: Relieving pressure is set... [See More]

• Valve Type: Relief; Safety
• Media: Gas; Air

• Primary Material: Brass / Bronze
• Valve Size: 0.75 to 1.00

. Adds Back-Flow Protection to any 1/4-28 Flat-Bottom Port. 15 psi (1.0 bar) and 3 psi (0.21 bar) Cracking Pressure Versions. Excellent Chemical Resistance. Connect these Upchurch Scientific ® Inline Check Valves to any 1/4-28 flat-bottom port. Then thread your 1/4-28 flat-bottom fitting into... [See More]

• Valve Type: Check; Relief

AGRCZO are two-stage normally closed proportional pressure reducing valves without integral pressure transducer, which provide pressure regulation proportional to electronic reference signal. They operate in association with electronic drivers, which supply the proportional valve with proper current... [See More]

• Valve Type: Control Valve; Relief
• Valve Size: 0.39 to 0.79

• Media: Hydraulic
• Maximum Pressure: 5076.32

Series N240X, N241X Automatic Reseating Temperature and Pressure Relief Valves are used in commercial water heater applications to provide automatic temperature and pressure protection to domestic hot water supply tanks and hot water heaters. They feature a bronze body, stainless steel spring and... [See More]

• Valve Type: Relief
• Valve Size: 1.00 to 1.25

• Media: Water

D03 Modular Relief Valve [See More]

• Valve Type: Control Valve; Relief

• Maximum Pressure: 1000.00 to 3000.00

H9 Series, SS Relief Valve, Let-Lok [See More]

• Valve Type: Relief

CEME has always been a reference point for the ironing and steam cleaning world. The most important brands in this sector rely on CEME for electro valves, pumps, pressure gauges and safety valves, so as to guarantee the utmost efficiency and quality for their products.  . Temperature and... [See More]

• Valve Type: Relief; Safety
• Media Temperature: 356

• Media: Water; Steam; Air

The Check-All Flanged & Drilled check valve is a one-piece cast body valve with ANSI/ASME B16.5 Class 150 flanged ends. The HVFD series valve is used when higher flow rates and lower pressure drops are required. The valve is available in sizes 1 through 10 inches and standard materials of 316... [See More]

• Valve Type: Directional; Metal Seated (optional feature); Lift Check; Back Flow; Check; Poppet; Relief; Anti-Siphon
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water (optional feature); Gas; Gasoline / Diesel Fuel (optional feature); High Purity (optional feature); LP Gas (optional feature); Natural Gas (optional feature); Sour Gas (optional feature); Specialty Corrosive (optional feature); Hydraulic; Steam; Liquids; Air; Chemical

• Primary Material: Brass / Bronze; Stainless Steel; Steel
• Valve Size: 1.00

Function: pressure balanced pressure limitation valve, externally controlled or direct acting. Media: gaseous, liquid, highly viscous, contaminated. Body Materials: brass, aluminum, stainless steel, galvanized steel. Options: SAE connection, safety valve, mounting, special voltage, coil M 12 x 1,... [See More]

• Valve Type: Control Valve; Metering; Relief; Underwater (optional feature); Coaxial Valve
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity (optional feature); LP Gas; Natural Gas; Specialty Corrosive (optional feature); Hydraulic; Steam (optional feature); Air; Breathable; Compressed Air; Chemical

• Primary Material: Brass / Bronze; Steel
• Valve Size: 1.26

Value added engineering-custom capabilities and 100 years of know how. Vertical integration means your vales are the highest quality and best value. Combine these two distinctions with world class specification tools and superior customer service and …your choice is clear, Specialty made in... [See More]

• Valve Type: Relief; Rolover Valve
• Valve Size: 0.12 to 0.25

• Primary Material: Brass / Bronze
• Maximum Pressure: 1500.00

New Beta HT Series Extends Temperature to 450C. Equilibar has just made its HT Series back pressure regulators available for beta release to select customers. These regulators utilize a graphite seal for temperatures to 450C and pressures to 5000 psig. The Grafoil GTA seal is nuclear grade purity... [See More]

• Valve Type: Control Valve; Relief
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Hydraulic; Powder Solids (optional feature); Steam; Air; Breathable; Compressed Air; Chemical

• Primary Material: Stainless Steel (optional feature); Steel; Exotic Metal (optional feature)
• Valve Size: 0.12

Qosina is a leading supplier of T Pressure Relief Valve with 0.250 inch OD x 0.281 inch OD x 0.250 inch OD, 30 psi, +/- 10% Crack Tolerance. Get fast shipping and volume discounts on Relief Valves parts. [See More]

• Valve Type: Relief
• Media: Water; Air

• Primary Material: Stainless Steel; PP; PC, PP, Silicone, SS
• Maximum Pressure: 30.00

Relief Valve [See More]

• Valve Type: Relief; Relief Valve

• Connection Description: Threaded; Threaded 3/4\" NPT

Direct Mount Unloader with or without 2 mm Injector. Reduces cost - eliminates the need for fittings and bypass hose. Compact design - features forged brass body and hardware. Versatile - mounts in seconds to either side of pump manifold. Adjustable unloader valve - trapped pressure type with... [See More]

• Valve Type: Relief; Safety
• Media: Water; Hot Water; Cold Water  

• Primary Material: Brass / Bronze
• Valve Size: 0.38

Pressure Reducing with Solenoid Override - Same function as C101 with solenoid override. C105 - Energize to close valve. C106 - Energize to open valve. Configurations: Model C - Full Port Globe Style (Flanged or Threaded). Model CF - Reduced Port Globe Style (Flanged). Model CA - Angle Body Style... [See More]

• Valve Type: Control Valve; Angle; Solenoid; Relief
• Actuation: Pilot

• Valve Size: 1.25 to 36.00
• Connection Description: Threaded

bull; For applications requiring up to 1.25 scfm forward flow capacity. • Serial interface. • Digital or analog inputs. • Analog monitor output. • Single-loop control. • Forward flow 1.25 scfm at 100 psi. • Weather proof housing. • Digital display units availbale. [See More]

• Valve Type: Relief

VER03MP. PROPORTIONAL PRESSURE RELIEF VAVLES PILOT OPERATED. Mounting Surface NFPA R03 / D03 (ISO 6264-03-04-*-97). Max Pressure 5000 PSI (350 bar). Max Flow Rate 13.2 gpm (50 l/min). Description. Continental Hydraulics VER03MP pilot operated proportional relief valves conform to NFPA R03/D03 and... [See More]

• Valve Type: Solenoid; Spool; Relief
• Maximum Pressure: 1015.26 to 5076.32

• Media: Hydraulic
• Actuation: Pilot

Features. High precision cracking performance, high sealability. Small and light design is ideal for fluid that exhaust to outside. Various port sizes. Cracking pressure ’s setting is done before delivering. Connecting outlet port is the best to recover exhaust gas/liquid. Applications. [See More]

• Valve Type: Relief
• Media: Water; Air

• Primary Material: Brass / Bronze; Stainless Steel
• Valve Size: 0.12 to 1.25

The 500XL3 Pressure Reducing Valve works effectively for industrial water lines and commercial systems, with high-flow rate capacity and low falloff. The patented integral venturi enables the valve to have best in-class flow performance. The all-bronze body, stainless-steel stem and cartridge... [See More]

• Valve Type: Relief
• Media: Water; Potable Water

• Primary Material: Brass / Bronze
• Valve Size: 1.00

ER5100 Series consists of the ER5000 Series controller and a 44-4000 Series pressure reducing regulator integrated together. Inlet pressures are up to 4500 psig / 310 bar with two different outlet ranges of 400 and 900 psig / 27.6 and 62.1 bar. The ER5100 Series may be ordered with a Cv = 0.7 or a... [See More]

• Valve Type: Relief
• Media: Gas; High Purity

• Primary Material: Brass / Bronze (optional feature); Stainless Steel (optional feature)
• Maximum Pressure: 400.00 to 900.00

A Thermal Valve is used to eliminate heat build-up in a closed loop by-pass system when liquid is being returned to the pump inlet. Thermal Valves can only be installed when there is a pressurized pump inlet. During recirculation of by-pass liquid, the thermal valve will detect temperature rises in... [See More]

• Valve Type: Relief
• Maximum Pressure: 0.00 to 125.00

• Media: Water
• Number of Ports: 2

STANDARD FEATURES. Economical monoblock construction of high tensile strength gray cast iron. Load check on each spool. Hard Chrome Plated Spools. No face seals on spools. Adjustable cartridge relief. Power beyond available. 4 Position Float Spool for loader boom. 4 Position Regen Spool for loader... [See More]

• Valve Type: Directional; Spool; Relief
• Media: Hydraulic

• Primary Material: Cast Iron; Steel
• Maximum Pressure: 3000.00

A screw-in, cartridge-style, pilot-operated (two-stage), spool-type hydraulic relief valve, intended for use as a pressure limiting device in demanding hydraulic circuits which require fast response and low hysteresis. [See More]

• Valve Type: Cartridge; Relief
• Media: Hydraulic

• Primary Material: Aluminum
• Valve Size: 0.50 to 1.00

An industrial-grade valve for water systems, the GD-24 is lightweight, compact and economical. The valve comes with screwed connections and will mount in any position. It requires no external sensing lines, and its bronze body and high-temperature diaphragm are suitable for hot or cold water... [See More]

• Valve Type: Control Valve; Metal Seated; Diaphragm; Relief
• Media: Water; Hot Water; Cold Water  

• Primary Material: Brass / Bronze
• Valve Size: 0.50 to 2.00

Flows Rates: Flow calculated based upon: Air @ 15 °C and 1013 mbar and are for guidance only, contact Seetru for help in sizing to your specifications. Product Description: 18mm Nominal Bore Atmospheric Discharge Safety Relief Valve for Compressed Air & Gases. Notes: Relieving pressure is set... [See More]

• Valve Type: Relief; Safety
• Media: Gas; Air

• Primary Material: Brass / Bronze
• Valve Size: 1.00 to 1.50

. Adds Back-Flow Protection to any 1/4-28 Flat-Bottom Port. 15 psi (1.0 bar) and 3 psi (0.21 bar) Cracking Pressure Versions. Excellent Chemical Resistance. Connect these Upchurch Scientific ® Inline Check Valves to any 1/4-28 flat-bottom port. Then thread your 1/4-28 flat-bottom fitting into... [See More]

• Valve Type: Check; Relief

These screw-in solenoid cartridges are poppet type, leak free and are normally used to cut off the hydraulic power supply line. They are available in normally closed or normally open configurations. The cartridges in /FI versions integrate an inductive sensor which supplies the output electrical... [See More]

• Valve Type: Cartridge; Poppet; Solenoid; Relief
• Valve Size: 0.75 to 1.31

• Media: Hydraulic
• Maximum Pressure: 5076.32

Series 174A Boiler Pressure Relief Valves are used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment. It consists of a bronze body construction with NPT threaded female inlet and NPT threaded... [See More]

• Valve Type: Relief
• Valve Size: 0.75 to 2.00

• Media: Water

D05 Modular Relief Valve [See More]

• Valve Type: Control Valve; Relief

• Maximum Pressure: 1000.00 to 3000.00

H9 Series, SS Relief Valve, Male [See More]

• Valve Type: Relief

CEME has always been a reference point for the ironing and steam cleaning world. The most important brands in this sector rely on CEME for electro valves, pumps, pressure gauges and safety valves, so as to guarantee the utmost efficiency and quality for their products.  . Temperature and... [See More]

• Valve Type: Relief; Safety
• Media Temperature: 338

• Media: Water; Steam; Air

The Check-All Flanged & Drilled - PTFE Lined check valve is a one-piece body valve with ANSI/ASME flanged ends. The valve has a solid one-piece PTFE liner, which covers the flange faces out to the raised face diameter. All wetted surfaces are fluoropolymer (PTFE/FEP/PFA) including the FEP... [See More]

• Valve Type: Directional; Metal Seated (optional feature); Lift Check; Back Flow; Check; Poppet; Relief; Anti-Siphon
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water (optional feature); Gas; Gasoline / Diesel Fuel (optional feature); High Purity (optional feature); LP Gas (optional feature); Natural Gas (optional feature); Sour Gas (optional feature); Specialty Corrosive (optional feature); Hydraulic; Steam; Liquids; Air; Chemical

• Primary Material: Steel; FEP Encapsulator
• Valve Size: 1.00

Function: pressure balanced pressure limitation valve, externally controlled or direct acting. Media: gaseous, liquid, highly viscous, contaminated. Body Materials: brass, aluminum, stainless steel, galvanized steel. Options: SAE connection, safety valve, mounting, special voltage, coil M 12 x 1,... [See More]

• Valve Type: Control Valve; Metal Seated; Metering; Relief; Underwater (optional feature); Coaxial Valve
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water; Wastewater; High Purity (optional feature); Specialty Corrosive (optional feature); Hydraulic; Steam (optional feature); Air; Breathable; Compressed Air; Chemical

• Primary Material: Brass / Bronze; Steel
• Valve Size: 0.31

Value added engineering-custom capabilities and 100 years of know how. Vertical integration means your vales are the highest quality and best value. Combine these two distinctions with world class specification tools and superior customer service and …your choice is clear, Specialty made in... [See More]

• Valve Type: Relief; Rolover Valve
• Valve Size: 0.25 to 0.69

• Primary Material: Brass / Bronze
• Maximum Pressure: 500.00

Standard Pressure Range: 0.02 (.5 ” WC) to 1500 psig. Ultra Low to Zero flow performance. Standard Cv from 1E-11 to 0.01. Standard 316L Stainless Steel Body; Hastelloy C and PTFE also available. NPT, VCR/VCO type and Valco (low dead volume) ends available. Wide Variety of Diaphragms Including... [See More]

• Valve Type: Control Valve; Relief
• Media: Water; Hot Water; Cold Water  ; Ground Water; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Hydraulic; Powder Solids (optional feature); Steam; Air; Breathable; Compressed Air; Chemical

• Primary Material: Aluminum; Brass / Bronze (optional feature); Cast Iron (optional feature); Ductile Iron (optional feature); Stainless Steel; Steel; Exotic Metal (optional feature); PTFE (optional feature)
• Valve Size: 0.12

Order T pressure relief valves at Qosina and get only what you need with our low $25-order minimum. Features a 9-12 psi tolerance. [See More]

• Valve Type: Relief
• Media: Water; Air

• Primary Material: Stainless Steel; PP; PC, PP, Silicone, SS
• Maximum Pressure: 9.00 to 12.00

Relief Valve [See More]

• Valve Type: Relief; Relief Valve

• Connection Description: Threaded; Threaded 3/4\" NPT

Direct Mount, Control Set Unloader For TT/TP Series 51 Pumps. General Pump, along with our parent company, Interpump Group S.r.l., has been the world leader in plunger pump development since 1982. While known as the leader in plunger pumps for the pressure cleaning industry, we have expanded to... [See More]

• Valve Type: Relief; Safety
• Media: Water; Hot Water; Cold Water  

• Primary Material: Brass / Bronze
• Valve Size: 0.38