Pressure Relief Valves Air Valves

Description

Pressure relief valves are self-operating devices designed to protect systems from over-pressurization. They automatically open to release excess pressure when it exceeds a predetermined limit, ensuring the system remains within safe operating conditions. These valves are typically used in systems where maintaining a specific pressure range is crucial to prevent damage or failure.

Working Principle

Pressure relief valves operate based on a balance of forces. They are normally closed, held shut by a spring force. When the pressure in the system exceeds the set pressure, the force exerted by the fluid pressure overcomes the spring force, causing the valve to open. This allows the excess fluid to escape, reducing the pressure in the system. Once the pressure drops below the set point, the spring force closes the valve again. This mechanism is crucial for maintaining system integrity and preventing catastrophic failures due to over-pressurization.

Applications

Pressure relief valves are used in a variety of applications. In industrial settings, they are essential in chemical and petrochemical plants to manage pressure in steam, gas, vapor, and liquid systems. They are also used in hydraulic and pneumatic systems to prevent damage to components by controlling the maximum pressure. Additionally, they serve as anti-siphon valves in systems where negative pressure could cause unwanted siphoning of chemicals.

Advantages over other Air Valves

Pressure relief valves offer several advantages over other types of air valves. They are versatile and widely used due to their compact size, ease of setting and adjustment, and repeatability. Unlike some other valves, they can be preset to a specific relief pressure or adjusted as needed, providing flexibility in various applications. Their ability to automatically respond to pressure changes without manual intervention makes them highly reliable in maintaining system safety.

Limitations

One limitation of pressure relief valves is that they are not suitable for applications requiring "pop" safety valves, which are designed for rapid full opening. Additionally, the performance of these valves can be affected by factors such as temperature changes and the presence of corrosive fluids, which may require special materials or coatings to ensure durability.

Considerations

When selecting a pressure relief valve, several factors should be considered. Initial costs can vary depending on the materials and design required for specific applications. Operating expenses may include regular maintenance to ensure the valve functions correctly and replacement costs if the valve becomes worn or damaged. Durability is influenced by the operating environment, and valves used in harsh conditions may require more frequent inspections and maintenance. Accuracy in maintaining the set pressure is critical, and valves should be tested regularly to ensure they perform as expected.

138 Results
Air vent Valve M12 for Battery Pack/Low Profile Dual -- MIV-12MAS-2DH-SV-L
from Shenzhen Milvent Technology Co., Limited

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
  • Connection Description: Threaded
  • Valve Size: 0.47
Valve, Pressure Relief, 0-100 Psig, 1/4" Male Quick Connect -- 936-1000-200100
from Petersen Products Co.

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
  • Maximum Pressure: 0.00 to 100.00
  • Valve Size: 0.25
  • Connection Description: Quick Connect
Hydraulic Valve -- 120604352 [TCG50-06-FEV-P7-H from Tokyo Keiki, Inc.]
from Radwell International

DISCONTINUED BY MANUFACTURER, PNEUMATIC VALVE, TCG50 SERIES, RELIEF VALVE, 105 MIN / 205 MAX. FREE 2 YEAR RADWELL WARRANTY [See More]

  • Valve Type: Relief; Anti-Siphon
  • Actuation: Pneumatic
Relief Valves
from Haskel International LLC

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

  • Valve Type: Relief
  • Maximum Pressure: 1500.00 to 20000.00
  • Valve Size: 0.75
  • Connection Description: Compression
Electronic Solenoid Flow Control Valves -- ACV600
from Shanghai Thinktank Process Management Co., Ltd

Description. ACV600 Electronic Solenoid Flow Control Valves Features. The electronic water control valve(solenoid control valve) is a hydrodynamic operated valve with a solenoid valve as the pilot valve. Commonly used for automatic control in water supply and sewage and industrial systems, the... [See More]

  • Valve Type: Control Valve; Directional; Float; Relief
Valves and Control -- 2171-PEV-1/4-B-ND [PEV-1/4-B from Festo Corporation]
from DigiKey

Pressure Switch Sub-Base Mount [See More]

  • Valve Type: Relief; Pressure Switch
  • Connection Description: Threaded
  • Maximum Pressure: 15.00 to 174.00
Battery Pack Protective Valve
from Shenzhen Milvent Technology Co., Limited

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
  • Connection Description: Threaded; M20x1.5
  • Maximum Pressure: 1.45
Valve, Pressure Relief, 0-25 Psig, 1/4" Male Quick Connect -- 936-1000-200025
from Petersen Products Co.

Connection Type 1/4" QC. Description Adjustable Pressure Relief Valve 0-25PSI. Pressure, PSI 0-25 psi (0-1.73 bar). Sage Subcategory Number W9360. Shipping Wt. 2 Lb (0.91 Kg). Type For Air or Nitrogen [See More]

  • Valve Type: Relief
  • Maximum Pressure: 0.00 to 25.00
  • Valve Size: 0.25
  • Connection Description: Quick Connect
Pneumatic Regulator -- 1115400 [IR2020-N02BG from SMC Corporation of America]
from Radwell International

PRECISION REGULATOR, 0.16 SCFM, 1/4 NPT, RELIEF VALVE, 1.45 TO 116 PSI. FREE 2 YEAR RADWELL WARRANTY [See More]

  • Valve Type: Regulator; Relief; Anti-Siphon
Flow Control Valve -- ACV400
from Shanghai Thinktank Process Management Co., Ltd

Description. Flow control valves are used in pipelines where the distribution pipe needs to control the flow and pressure, keeping the predetermined flow constant, limiting the excessive flow to a predetermined value, and reducing the upstream high pressure appropriately, even if the pressure... [See More]

  • Valve Type: Control Valve; Directional; Float; Relief
Valves and Control -- 966-1015-ND [81513552 from Crouzet]
from DigiKey

Pressure Operated Pressure Switch DIN Rail [See More]

  • Valve Type: Relief; Pressure Switch
  • Maximum Pressure: 30.00 to 116.00
  • Valve Size: 0.16
Battery Vent -- MIV-25MAEX
from Shenzhen Milvent Technology Co., Limited

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
  • Connection Description: Threaded
  • Valve Size: 1.18
  • Actuation: Mechanical
Valve, Pressure Relief, 110 Psig, 1/4" Male Quick Connect -- 936-1000-200110
from Petersen Products Co.

Connection Type 1/4" QC. Description Valve, Pressure Relief. Pressure, PSI 110 psi (7.58 bar). Sage Subcategory Number W9360. Shipping Wt. 2 Lb (0.91 Kg). Type For Air or Nitrogen [See More]

  • Valve Type: Relief
  • Maximum Pressure: 110.00
  • Valve Size: 0.25
  • Connection Description: Quick Connect
Pneumatic Regulator -- 112851765 [2401-4-N from CKD USA Corporation]
from Radwell International

DISCONTINUED BY MANUFACTURER, REGULATOR, LOW PRESSURE, 0.02-0.34MPA, ADJUSTING SCREW, NON-RELIEF TYPE. FREE 2 YEAR RADWELL WARRANTY [See More]

  • Valve Type: Regulator; Relief; Anti-Siphon
No-Slamming Hydraulic Check Valve -- ACV300
from Shanghai Thinktank Process Management Co., Ltd

Description. ACV300 No-Slamming hydraulic check valve is a kind of slow-closing check valve which consists of the main valve, check valve, needle valve, ball valve, microform filter, and pressure gauge. Using hydraulic automatic operation, it can make the main valve get the best opening and closing... [See More]

  • Valve Type: Swing; Control Valve; Directional; Float; Hydraulic; Relief
Valves and Control -- 966-1018-ND [81502160 from Crouzet]
from DigiKey

Negative Output Pressure Switch Sub-Base Mount [See More]

  • Valve Type: Relief; Pressure Switch
  • Maximum Pressure: 30.00 to 116.00
Valve, Pressure Relief, 125 Psig, 1/4" Male Quick Connect -- 936-1000-200125
from Petersen Products Co.

Comment 1 VALVE, PRESSURE RELIEF, 125 PSIG, 1/4" MALE QUICK CONNECT. Connection Type 1/4" QC. Description Valve, Pressure Relief. Pressure, PSI 125 psi(8.62 bar). Sage Subcategory Number W9360. Shipping Wt. 2 Lb (0.91 Kg). Type For Air or Nitrogen [See More]

  • Valve Type: Relief
  • Maximum Pressure: 125.00
  • Valve Size: 0.25
  • Connection Description: Quick Connect
Pneumatic Regulator -- 11401436 [R820-03FGT from ASCO]
from Radwell International

PRECISION REGULATOR, 82 SERIES, HIGH RELIEF, NPTF THREADS, 3/8 PORT SIZE, 2-120 PSIG, GAUGE, TAMPER PROOF. FREE 2 YEAR RADWELL WARRANTY [See More]

  • Valve Type: Regulator; Relief; Anti-Siphon
  • Connection Description: Threaded
Pressure Reducing Valve -- ACV200
from Shanghai Thinktank Process Management Co., Ltd

Description. ACV200 Pressure reducing valve is a kind of valve used in the parallel water supply system of firefighting and lives, which is used to deploy the direction of water supply. When a fire breaks out and a large amount of water is urgently needed for fire fighting, the domestic water supply... [See More]

  • Valve Type: Control Valve; Directional; Float; Relief
Valves and Control -- 966-1019-ND [81504025 from Crouzet]
from DigiKey

LOGIC NOT Sensor, Pressure Decay Sub-Base Mount [See More]

  • Valve Type: Relief; Sensor, Pressure Decay
  • Maximum Pressure: 30.00 to 116.00
Pneumatic Regulator -- 116533246 [R3000-10N-W from CKD USA Corporation]
from Radwell International

PNEUMATIC REGULATOR, OPERATING PRESSURE RANGE 0.05 TO 0.85 MPA, PORT SIZE 3/8 NPT, WHITE, RELIEF MECHANISM, STANDARD PRESSURE GAUGE. FREE 2 YEAR RADWELL WARRANTY [See More]

  • Valve Type: Regulator; Relief; Anti-Siphon
  • Actuation: Pneumatic
Pressure Relief Sustaining Valve -- ACV500
from Shanghai Thinktank Process Management Co., Ltd

Description. Pressure Relief Sustaining Valve Features. The pressure relief/sustaining valve consists of the main valve, pressure relief/sustaining pilot valve, needle valve, ball valve, microform filter, and pressure gauge. It can be used as both a pressure relief valve and a pressure sustaining... [See More]

  • Valve Type: Control Valve; Directional; Float; Relief; Anti-Siphon
Valves and Control -- 966-1061-ND [81505150 from Crouzet]
from DigiKey

Positive Output Pressure Switch Sub-Base Mount [See More]

  • Valve Type: Relief; Pressure Switch
  • Maximum Pressure: 1.00 to 36.00
Pneumatic Regulator -- 127526492 [R1000-8-LT8 from CKD USA Corporation]
from Radwell International

DISCONTINUED BY MANUFACTURER, REGULATOR, PRESSURE GAUGE EMBEDDED, 1/4 PORT SIZE, RC THREAD, 0.05 TO 0.35 MPA, WITH RELIEF MECHANISM, PRESSURE GAUGE READY, STANDARD FLOW (L TO R). FREE 2 YEAR RADWELL WARRANTY [See More]

  • Valve Type: Regulator; Relief; Anti-Siphon
  • Connection Description: Threaded
Pump Flow Control Valves -- ACV700
from Shanghai Thinktank Process Management Co., Ltd

Description. Pump Flow Control Valves Features. A water pump control valve is a kind of hydraulic control valve, pump control valve consists main valve and its attached conduit, pilot valve, needle valve, ball valve, pressure gauge, and other components. According to the purpose, function, and... [See More]

  • Valve Type: Control Valve; Directional; Float; Relief
Valves and Control -- 966-1124-ND [81509080 from Crouzet]
from DigiKey

Pressure Operated Pressure Switch Sub-Base Mount [See More]

  • Valve Type: Relief; Pressure Switch
  • Maximum Pressure: ? to 20.00
Pneumatic Regulator -- 1340974 [AR30-02-B from SMC Corporation of America]
from Radwell International

REGULATOR, MODULAR, 1/4 R, AR MASS PRO, IMPROVED RELIEF SENSITIVITY, OZONE RESITANT RUBBER KNOB. FREE 2 YEAR RADWELL WARRANTY [See More]

  • Valve Type: Regulator; Relief; Anti-Siphon
Quick Pressure Relief Valves -- ACV900
from Shanghai Thinktank Process Management Co., Ltd

Description. Quick Pressure Relief Valves Feature. The quick pressure relief valve is a kind of emergency shut-off valve used in the water supply system where fire-fighting water and domestic water are connected in parallel and used to deploy the direction of the water supply. When a fire occurs,... [See More]

  • Valve Type: Control Valve; Directional; Float; Relief
Valves and Control -- 966-1125-ND [81509085 from Crouzet]
from DigiKey

Pressure Operated Pressure Switch Sub-Base Mount [See More]

  • Valve Type: Relief; Pressure Switch
  • Maximum Pressure: ? to 20.00
Pneumatic Regulator -- 1347119 [ARM10-06G from SMC Corporation of America]
from Radwell International

REGULATOR, WITH PRESSURE GAUGE, COMPACT, SINGLE UNIT TYPE, 0.05-0.7 MPA PRESSURE, 5-60 C OPERATING TEMPERATURE, ONE TOUCH COUPLING, RELIEF EXHAUST MECHANISM. FREE 2 YEAR RADWELL WARRANTY [See More]

  • Valve Type: Regulator; Relief; Anti-Siphon
Remote Float Level Control Valve -- ACV100
from Shanghai Thinktank Process Management Co., Ltd

Description. ACV100 Remote Float Control Valve Features & Applications. acv 100 design. ACV remote float ball control valve directly uses liquid level control without other devices and energy, easy maintenance, high accuracy of liquid level control, and reliable shutoff. Also, this valve is not... [See More]

  • Valve Type: Control Valve; Directional; Float; Relief
Valves and Control -- 966-1139-ND [81513501 from Crouzet]
from DigiKey

Pressure Operated Pressure Switch DIN Rail [See More]

  • Valve Type: Relief; Pressure Switch
  • Maximum Pressure: 4.00 to 17.00
  • Valve Size: 0.16
Pneumatic Regulator -- 1858890 [IR3010-N04BG from SMC Corporation of America]
from Radwell International

PRECISION REGULATOR, 0.41 SCFM, 1/2 NPT, RELIEF VALVE, 1.45 TO 58 PSI, WBRACKET/GAUGE. FREE 2 YEAR RADWELL WARRANTY [See More]

  • Valve Type: Regulator; Relief; Anti-Siphon
Valves and Control -- 966-1140-ND [81513509 from Crouzet]
from DigiKey

Pressure Operated Pressure Switch DIN Rail [See More]

  • Valve Type: Relief; Pressure Switch
  • Maximum Pressure: 30.00 to 116.00
  • Valve Size: 0.16
Pneumatic Regulator -- 23896170 [ARM10F3-57BG-1Z from SMC Corporation of America]
from Radwell International

COMPACT REGULATOR, DIRECT ACTING, 7-50 MAX PSI, 0.05-0.7 MPA RANGE, RELIEF TYPE MECHANISM, 1.5 MPA PROOF PRESSURE. FREE 2 YEAR RADWELL WARRANTY [See More]

  • Valve Type: Regulator; Relief; Anti-Siphon
Valves and Control -- 966-1173-ND [81513533 from Crouzet]
from DigiKey

Pressure Operated Pressure Switch Chassis Mount [See More]

  • Valve Type: Relief; Pressure Switch
  • Maximum Pressure: 30.00 to 116.00
  • Valve Size: 0.12
  • Connection Description: Threaded
Pneumatic Regulator -- 2951546 [NAP100-N02 from SMC Corporation of America]
from Radwell International

REGULATOR RELIEF 1/4INCH NPTF. FREE 2 YEAR RADWELL WARRANTY [See More]

  • Valve Type: Regulator; Relief; Anti-Siphon
Valves and Control -- 966-1225-ND [81502140 from Crouzet]
from DigiKey

Negative Output Pressure Switch Sub-Base Mount [See More]

  • Valve Type: Relief; Pressure Switch
  • Maximum Pressure: 0.70 to 7.00
Air Preparation Valves
from IBT Industrial Solutions

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: Regulator; Relief; Lockout
Pressure Relief Module -- TVS20
from WEH Technologies Inc.

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
  • Maximum Pressure: 2.90
  • Valve Size: 0.47
  • Media Temperature: 41 to 140
Aerospace Relief Valves
from Valcor Engineering Corporation

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: Hydraulic; Relief
  • Connection Description: Threaded
  • Maximum Pressure: 20.00 to 3800.00
Release Valve -- D-2454-12H
from Harwood Engineering Company

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
  • Connection Description: Threaded; Inlet: 12H, Release Port: ¼ NPT
  • Maximum Pressure: 200000.00
  • Actuation: Mechanical; Hydraulic
Relief Valve/Sequence Valve -- R-6100
from Air Logic

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
  • Maximum Pressure: 30.00
  • Valve Size: 0.06 to 0.12
  • Media Temperature: 40 to 120
1" ACeR Bottom Load Polypropylene 3-Way Actuated Valve -- KZ17FM
from KZVALVE

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: Ball; Control Valve; Relief
  • Flow (Cv): 25.00
  • Valve Size: 1.00
  • Maximum Pressure: 150.00
Bushing Valve -- BUD (BU-050x0375)
from Check-All Valve Mfg. Co.

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: Check; Lift Check; Back Flow; Poppet; Directional; Hydraulic; Relief; Anti-Siphon; Bushing Valve
  • Flow (Cv): 2.60
  • Valve Size: 0.50
  • Maximum Pressure: 3000.00
FD Series Fully Drainable Hygienic Back Pressure Regulator
from Equilibar, LLC.

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: Regulator; Control Valve; Hydraulic; Relief
  • Flow (Cv): 0.00 to 1.00
  • Valve Size: 0.50
  • Maximum Pressure: 0.00 to 150.00
Safety Relief Valve for Air, Gas, and Vapors, ASME Section VIII -- Figure 41A
from Watts

Series Figure 41A Safety Relief Valves for Air, Gas, and Vapors are ASME section VIII valves used for compressors, intercoolers, aftercoolers and receivers, air makeup units, gas burners, pneumatic conveying/elevating equipment, dryers and other pressure vessels and piping, that handle air, gases,... [See More]

  • Valve Type: Relief; Safety
High Pressure Relief Valves -- FRHA Series
from FUJIKURA COMPOSITES Inc.

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
  • Flow (Cv): 13.00 to 29.00
  • Valve Size: 0.12 to 0.75
  • Maximum Pressure: 986.25
Piping, Valves & Fittings
from Chemac Inc./Uraca/Uhde HPT/Gather/BHDT

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: Check; Angle; Butterfly; Diaphragm; Globe; Piston; Control Valve; Relief
Safety Relief Valve -- WSVB-12M-13S-D
from Watson McDaniel Company

The WSVB Safety Relief Valves are used for over-pressure protec- tion on unfired pressure vessels in saturated steam systems. As safety valves open on a non-compressible fluid applica- tion, the disc lifts directly proportional to the increase in system pressure over the valve set point. Safety... [See More]

  • Valve Type: Relief; Safety
  • Maximum Pressure: 250.00
  • Valve Size: 0.50 to 0.75
  • Connection Description: Threaded; 1/2" NPT, 3/4" NPT
High Pressure Relief Valves
from FITOK GmbH

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
  • Flow (Cv): 0.07 to 1.20
  • Valve Size: 0.08 to 0.31
  • Maximum Pressure: 1500.00 to 60000.00
Quick Exhaust Valve
from Trebor International

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
  • Connection Description: Threaded
  • Flow (Cv): 1.80
Pressure Relief Valves
from Carr Lane Manufacturing Co.

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: Hydraulic; Relief
  • Maximum Pressure: 7500.00
  • Valve Size: 0.25 to 0.50
  • Connection Description: Threaded; 1/4" to 1/2" BSPP
Blowdown / Depressurisation Valve -- BDV1
from Spirax-Sarco

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
  • Flow (Cv): 0.56
  • Valve Size: 0.38 to 0.50
  • Maximum Pressure: 0.00 to 1232.82
Safety Relief Valves -- Brand: Mallard Control
from CIRCOR Energy

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
  • Connection Description: Threaded
  • Valve Size: 0.25 to 3.00
Safety Valve
from CEME

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
TESCOM™ 98 Series Filter Pressure Control -- 98 Series
from Emerson Automation Solutions – TESCOM Regulators, Valves & Systems

98 Series high pressure filters offer operating pressure ratings up to 10,000psig / 690 bar with Mini In-line and TEE-Type designs. Ideal for use in filtration prior to pressure control components to protect from particulate contamination. Operating pressure ratings up to 10,000 psig / 690 bar. [See More]

  • Valve Type: Regulator; Relief
  • Maximum Pressure: 10000.00
  • Valve Size: 0.25 to 0.50
  • Media Temperature: -320 to 550
Industrial Safety Relief Valve -- SV3/200
from General Pump

Industrial Safety Relief Valve. Features. Duty: It limits the pressure at the max working pressure of the system. How it works: When the max working pressure is exceeded it opens and discharges the total pump flow in the atmosphere eliminating the high pressure in the system. Supply: The valve is... [See More]

  • Valve Type: Relief; Safety
  • Maximum Pressure: 2900.00
  • Valve Size: 0.75
  • Connection Description: Threaded; 3/4" G
Electronic Pressure Relief Valve
from Kelly Pneumatics, Inc.

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: Regulator; Servo; Relief
  • Media Temperature: 0 to 150
  • Maximum Pressure: 1.00 to 98.00
  • Connection Description: Threaded; 1/8" or 1/4" FPT
DN10 Atmospheric Discharge Safety Relief Valve -- DN10
from Seetru Limited

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
  • Maximum Pressure: 6.96 to 667.17
  • Valve Size: 0.50 to 0.75
  • Media Temperature: 5 to 392
Automatic Relief/Bleed Valve -- 1600-60
from Terra Universal, Inc.

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: Check; Block Bleed; Relief
  • Connection Description: Threaded (optional feature); Union (optional feature)
  • Valve Size: 0.62 to 1.00
  • Actuation: Electric
Relief / Inflation Valve -- 80161
from Qosina Corp.

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
  • Maximum Pressure: 1.90 to 2.30
Control Valve - Pressure Control -- 3-HPB-H 15
from co-ax valves inc.

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: Regulator; Control Valve; Hydraulic; Metering; Relief; Coaxial Valve
  • Flow (Cv): 0.00 to 6.90
  • Valve Size: 0.59
  • Maximum Pressure: 72.52 to 1740.45
Hopper / Silo Pressure Relief Valve -- PRV
from DMN, Incorporated

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 Temperature: 14 to 302
  • Maximum Pressure: -0.29 to 0.65
  • Connection Description: BoltFlange
Pressure Relief Valve -- 713-9001-20
from Clark Solutions

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
  • Connection Description: Threaded; 1/4" NPT
  • Valve Size: 0.25
Pressure Relief Valves -- Steam, Air and Liquids Safety Valves
from Curtiss-Wright, Valve Group

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
  • Media Temperature: -319 to 1499
  • Valve Size: 0.50 to 24.00
Relief Valve -- V63-D-4T
from DK-LOK U.S.A.

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
  • Flow (Cv): 0.60
  • Valve Size: 0.19
  • Maximum Pressure: 3000.00
Pressure Reducing Valve -- AF-10
from Armstrong International

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: Diaphragm; Control Valve; Relief
  • Maximum Pressure: 0.00 to 250.00
  • Valve Size: 0.25 to 1.00
  • Connection Description: Threaded; (1/4", 3/8", 1/2", 3/4", 1") NPT
Pressure Relief Module -- TVS21
from WEH Technologies Inc.

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
  • Maximum Pressure: 2.90
  • Valve Size: 0.47
  • Media Temperature: 41 to 140
Connector Valve -- CND (CON-050)
from Check-All Valve Mfg. Co.

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: Check; Lift Check; Back Flow; Poppet; Directional; Relief; Anti-Siphon
  • Flow (Cv): 2.30
  • Valve Size: 0.50
  • Maximum Pressure: 3000.00
GS Series Gas Service Back Pressure Regulator
from Equilibar, LLC.

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: Regulator; Control Valve; Hydraulic; Relief
  • Flow (Cv): 0.00 to 8.50
  • Valve Size: 0.12 to 1.00
  • Maximum Pressure: 0.00 to 2500.00
High Pressure Relief Valves -- FRHL Series
from FUJIKURA COMPOSITES Inc.

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
  • Flow (Cv): 13.00 to 19.00
  • Valve Size: 0.12 to 0.25
  • Maximum Pressure: 986.25
Pneumatically Actuated Pressure Maintaining Valve -- PDV
from Chemac Inc./Uraca/Uhde HPT/Gather/BHDT

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
Relief Valves
from FITOK GmbH

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
  • Flow (Cv): 0.14 to 0.25
  • Valve Size: 0.14 to 0.25
  • Maximum Pressure: 6000.00
Safety Valve
from CEME

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
DN13 Atmospheric Discharge Safety Relief Valve -- DN13
from Seetru Limited

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
  • Maximum Pressure: 40.61 to 304.58
  • Valve Size: 0.50 to 0.75
  • Media Temperature: 5 to 392
T Pressure Relief Valve -- 80141
from Qosina Corp.

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
  • Maximum Pressure: 2.50
Control Valve - Pressure Control -- 3-HPB-H 32
from co-ax valves inc.

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: Regulator; Control Valve; Hydraulic; Metering; Relief; Coaxial Valve
  • Flow (Cv): 0.00 to 16.70
  • Valve Size: 1.26
  • Maximum Pressure: 72.52 to 1740.45
Pressure Reducing Valve -- GD-200
from Armstrong International

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: Diaphragm; Control Valve; Relief
  • Maximum Pressure: 150.00
  • Valve Size: 2.00 to 6.00
  • Media Temperature: ? to 175
Flange Insert Valve -- 0.5" FIV
from Check-All Valve Mfg. Co.

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: Check; Lift Check; Back Flow; Poppet; Directional; Hydraulic; Relief; Anti-Siphon
  • Flow (Cv): 2.40
  • Valve Size: 0.50
  • Connection Description: BoltFlange; Face Seal (optional feature); 1-3/8" O.D. Flange
H10P Series 10,000psi Precision Back Pressure Regulator
from Equilibar, LLC.

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: Regulator; Control Valve; Hydraulic; Relief
  • Flow (Cv): 0.00 to 0.07
  • Valve Size: 0.12
  • Maximum Pressure: 0.00 to 10000.00
Low Pressure Relief Valves -- FRA Series
from FUJIKURA COMPOSITES Inc.

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
  • Flow (Cv): 13.00 to 38.00
  • Valve Size: 0.12 to 1.00
  • Maximum Pressure: 234.96
Pneumatically High Pressure Switching Valve -- PSV 10/120
from Chemac Inc./Uraca/Uhde HPT/Gather/BHDT

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
Safety Valve
from CEME

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
DN15 Atmospheric Discharge Safety Relief Valve -- DN15
from Seetru Limited

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
  • Maximum Pressure: 36.26 to 304.58
  • Valve Size: 0.75 to 1.00
  • Media Temperature: -40 to 392
T Pressure Relief Valve -- 80142
from Qosina Corp.

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
  • Maximum Pressure: 8.45
Control Valve - Pressure Control -- 3-HPB-N 32
from co-ax valves inc.

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: Regulator; Control Valve; Hydraulic; Metering; Relief; Coaxial Valve
  • Flow (Cv): 0.00 to 27.80
  • Valve Size: 1.26
  • Maximum Pressure: 14.50 to 232.06
Pressure Reducing Valve -- GD-30
from Armstrong International

The GD-30 is a compact, high-performance direct-acting valve. Economical to buy and use, it is ideal for those low- to moderate-flow applications where accuracy of +/- 10% is acceptable. The GD-30 is well suited for laundry and dry-cleaning equipment, hospital equipment, tire molds, humidifiers,... [See More]

  • Valve Type: Bellows; Control Valve; Relief
  • Maximum Pressure: 250.00
  • Valve Size: 0.50 to 2.00
  • Media Temperature: ? to 410
Flanged & Drilled -- HVH (HVFD-100)
from Check-All Valve Mfg. Co.

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: Check; Lift Check; Back Flow; Poppet; Directional; Hydraulic; Relief; Anti-Siphon
  • Flow (Cv): 14.20
  • Valve Size: 1.00
  • Connection Description: BoltFlange; Face Seal (optional feature); 4-1/4" O.D. Flange
HT1 Series High Temperature Back Presure Regulator
from Equilibar, LLC.

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: Regulator; Control Valve; Hydraulic; Relief
  • Flow (Cv): 0.00 to 0.07
  • Valve Size: 0.12
  • Maximum Pressure: 0.00 to 5000.00
Low Pressure Relief Valves -- FRC Series
from FUJIKURA COMPOSITES Inc.

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
  • Flow (Cv): 13.00 to 29.00
  • Valve Size: 0.12 to 0.75
  • Maximum Pressure: 234.96
Safety Valve
from CEME

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
DN18 Atmospheric Discharge Safety Relief Valve -- DN18
from Seetru Limited

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
  • Maximum Pressure: 30.46 to 522.14
  • Valve Size: 1.00 to 1.50
  • Media Temperature: -40 to 356
T Pressure Relief Valve -- 80143
from Qosina Corp.

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
  • Maximum Pressure: 30.00
Control Valve - Pressure Control -- 3-HPB-S 15
from co-ax valves inc.

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: Regulator; Control Valve; Hydraulic; Metering; Relief; Coaxial Valve
  • Flow (Cv): 0.00 to 6.90
  • Valve Size: 0.59
  • Maximum Pressure: 72.52 to 928.24
Pressure Reducing Valve -- GD-45
from Armstrong International

The GD-45 is a compact, high-performance direct-acting valve. Inexpensive to buy and use, it is ideal for those moderate-flow applications that do not justify the higher cost of pilot-controlled valves. The GD-45 is well suited for laundry and dry-cleaning equipment, hospital equipment, tire molds,... [See More]

  • Valve Type: Bellows; Control Valve; Relief
  • Maximum Pressure: 300.00
  • Valve Size: 0.50 to 1.00
  • Media Temperature: ? to 450
Flanged & Drilled PTFE Lined -- HTH (HVFD-T-100)
from Check-All Valve Mfg. Co.

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: Check; Lift Check; Back Flow; Poppet; Directional; Hydraulic; Relief; Anti-Siphon
  • Flow (Cv): 12.60
  • Valve Size: 1.00
  • Maximum Pressure: 55.00
Instrument Series Back Pressure Regulator ZF Zero Flow Model
from Equilibar, LLC.

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: Regulator; Control Valve; Hydraulic; Relief
  • Flow (Cv): 0.00 to 0.01
  • Valve Size: 0.12
  • Maximum Pressure: 0.00 to 3000.00
Low Pressure Relief Valves -- FRL Series
from FUJIKURA COMPOSITES Inc.

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
  • Flow (Cv): 19.00 to 50.00
  • Valve Size: 0.12 to 1.25
  • Maximum Pressure: 234.96
Safety Valve
from CEME

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
DN25 Atmospheric Discharge Safety Relief Valve -- GA 106
from Seetru Limited

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: 25mm Nominal Bore Atmospheric Discharge Safety Relief Valve for Clean & Particle Laden Gases. Notes: Relieving pressure is... [See More]

  • Valve Type: Relief; Safety
  • Maximum Pressure: 7.25 to 174.05
  • Valve Size: 1.00 to 2.00
  • Media Temperature: -22 to 356
T Pressure Relief Valve -- 80193
from Qosina Corp.

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
  • Maximum Pressure: 9.00 to 12.00
Control Valve - Pressure Control -- 3-HPB-S 32
from co-ax valves inc.

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: Regulator; Control Valve; Hydraulic; Metering; Relief; Coaxial Valve
  • Flow (Cv): 0.00 to 27.80
  • Valve Size: 1.26
  • Maximum Pressure: 72.52 to 928.24
Pressure Reducing Valve -- GD-6N
from Armstrong International

The GD-6N and GD-6 are compact, direct-acting diaphragm valves ideal for low-flow applications, including laundry/dry-cleaning equipment, hospital equipment, tire/plastic molds and food processing. Lightweight and compact, the valves require no external sensing lines or additional parts. An external... [See More]

  • Valve Type: Diaphragm; Control Valve; Relief
  • Maximum Pressure: 150.00
  • Valve Size: 0.38 to 1.00
  • Media Temperature: ? to 450
Lined Pipe Valve -- LPH (LPI-100)
from Check-All Valve Mfg. Co.

The Lined Pipe Insert valve is designed to mate between two flanges on most lined pipe systems. It provides the simplest most economical way to install a check valve in a lined piping system. No gaskets are required, just spread the flanges, center the valve and bolt the flanges together. Lined Pipe... [See More]

  • Valve Type: Check; Lift Check; Back Flow; Poppet; Directional; Hydraulic; Relief; Anti-Siphon
  • Flow (Cv): 2.40
  • Valve Size: 1.00
  • Maximum Pressure: 55.00
NLB Series Back Pressure Regulator
from Equilibar, LLC.

Precision Back Pressure Regulator. For liquid, gas & mixed phase processes. SS316 Rugged Bar Stock Design. Unique Chatter Suppression Feature in liquid only applications. High Precision and sensitivity. PTFE, stainless steel, and Hastelloy diaphragms available. The NL series back pressure... [See More]

  • Valve Type: Regulator; Control Valve; Hydraulic; Relief
  • Flow (Cv): 0.01 to 160.00
  • Valve Size: 1.00 to 4.00
  • Maximum Pressure: 0.00 to 500.00
Low Pressure Relief Valves -- VR1 Series
from FUJIKURA COMPOSITES Inc.

Features. Compact design allowing installation in a space-saving manner. The relief pressure is high precision because the difference in opening and closing pressure is small. Relief pressure other than the standard specification can be set as custom order. (Setting pressure range:30... [See More]

  • Valve Type: Relief
  • Maximum Pressure: 21.76
  • Valve Size: 0.12 to 0.25
  • Connection Description: Threaded
Safety Valve
from CEME

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
DN25 Enclosed Discharge Safety Relief Valve -- DN25
from Seetru Limited

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: 25mm Nominal Bore Enclosed Discharge Safety Relief Valve for Compressed Air & Gases. Notes: Maximum permissible built up... [See More]

  • Valve Type: Relief; Safety
  • Maximum Pressure: 81.95 to 435.11
  • Valve Size: 1.25 to 2.00
  • Media Temperature: -4 to 392
T Pressure Relief Valve -- 80194
from Qosina Corp.

Get automatic relief when pressures rise too high by ordering and installing an 80194 T pressure relief valve from Qosina. The valve has an 18-psi tolerance. [See More]

  • Valve Type: Relief
  • Maximum Pressure: 18.00
Control Valve - Pressure Control -- HPB 08
from co-ax valves inc.

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: Regulator; Control Valve; Hydraulic; Metering; Relief; Coaxial Valve
  • Flow (Cv): 0.00 to 1.20
  • Valve Size: 0.31
  • Maximum Pressure: 145.04 to 2900.75
Pressure Reducing Valve -- GP-1000
from Armstrong International

The GP-1000 Series valves are pilot-controlled for accurate regulation of pressure under widely ranging flow. The internal-pilot design eliminates external components and piping. Internally piloted GP Series valves are capable of larger capacity and greater accuracy than direct-acting valves. [See More]

  • Valve Type: Diaphragm; Pilot; Control Valve; Relief
  • Maximum Pressure: 15.00 to 250.00
  • Valve Size: 0.50 to 2.00
  • Media Temperature: ? to 450
Mini-Check Valve -- MCV-0125
from Check-All Valve Mfg. Co.

The Check-All Mini-Check is a three piece constructed check valve. The valve is designed for minimum pressure drops. The three piece construction permits many combinations of end fittings, which makes the valve adaptable for nearly every application. The Mini-Check is available with 1/8, 1/4, and... [See More]

  • Valve Type: Check; Lift Check; Back Flow; Poppet; Directional; Hydraulic; Relief; Anti-Siphon
  • Flow (Cv): 1.10
  • Valve Size: 0.12
  • Maximum Pressure: 5000.00
Relief Valves -- FRM1 Series
from FUJIKURA COMPOSITES Inc.

Features. Special packing rubber inhibits valve ’s vibration. Setting of cracking pressure is controllable. (Pressure setting is done before shipping). Body material is stainless (SUS314), excellent corrosion resistance. Liquid available, In-line type, High flow model. Applications. Machine... [See More]

  • Valve Type: Relief
  • Maximum Pressure: 435.11
  • Valve Size: 0.25
  • Media Temperature: 32 to 194
Safety Valve
from CEME

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
DN3 Atmospheric Discharge Safety Relief Valve -- GA 312
from Seetru Limited

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: 3mm Nominal Bore Atmospheric Discharge Safety Relief Valve for Compressed Air & Gases. Notes: Relieving pressure is set... [See More]

  • Valve Type: Relief; Safety
  • Maximum Pressure: 699.08 to 3501.21
  • Valve Size: 0.38 to 0.75
  • Media Temperature: -40 to 356
T Pressure Relief Valve -- 80195
from Qosina Corp.

T Pressure Relief Valve [See More]

  • Valve Type: Relief
  • Maximum Pressure: 15.00
Control Valve - Pressure Control -- HPB 65
from co-ax valves inc.

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: Regulator; Control Valve; Hydraulic; Metering; Relief; Coaxial Valve
  • Flow (Cv): 0.00 to 69.60
  • Valve Size: 2.56
  • Maximum Pressure: 72.52 to 928.24
Sanitary Cartridge Valve -- SCFSS (SCV-075-SS)
from Check-All Valve Mfg. Co.

The Sanitary Cartridge Valve is a 316 stainless steel check valve for use in new or existing sanitary systems. The SCV design seals on the ID of sanitary ferrules with replaceable food grade seals (Standard is FDA EPDM). The valves fit the Alfa Laval Inc. Bevel Seat and Tri-Clamp ® fittings, the... [See More]

  • Valve Type: Check; Lift Check; Back Flow; Poppet; Directional; Relief; Anti-Siphon
  • Flow (Cv): 2.40
  • Valve Size: 0.75
  • Maximum Pressure: 1000.00
Relief Valves -- FRM2 Series
from FUJIKURA COMPOSITES Inc.

Features. Designed to reduce risk of outside-leak better than FRM1. As seal material. EPDM, kalrez are available in chemical, solvent and corrosive fluid. Setting of cracking pressure is controllable. (Pressure setting is done before shipping). High flow rate model. Applications. Machine Tools... [See More]

  • Valve Type: Relief
  • Maximum Pressure: 290.07
  • Valve Size: 0.25
  • Media Temperature: 32 to 194
Safety Valve
from CEME

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
DN4 Atmospheric Discharge Safety Relief Valve -- GA 550
from Seetru Limited

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: 4mm Nominal Bore Atmospheric Discharge Safety Relief Valve for Compressed Air & Gases. Notes: Relieving pressure is set... [See More]

  • Valve Type: Relief; Safety
  • Maximum Pressure: 1000.76 to 6500.59
  • Valve Size: 0.25 to 0.50
  • Media Temperature: -40 to 356
T Pressure Relief Valve -- 80196
from Qosina Corp.

T Pressure Relief Valve [See More]

  • Valve Type: Relief
  • Maximum Pressure: 58.00
Control Valve - Pressure Control -- HPB-S 50
from co-ax valves inc.

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: Regulator; Control Valve; Hydraulic; Metering; Relief; Coaxial Valve
  • Maximum Pressure: 72.52 to 928.24
  • Valve Size: 1.97
  • Media Temperature: 140
Sanitary Insert Valve -- TCFTF (SIV-075-TC)
from Check-All Valve Mfg. Co.

For over 35 years, the compact, fluoropolymer (PTFE/FEP/PFA), Sanitary Insert Valve has been used as the most economical solution to providing a check valve in a new or existing sanitary piping system. This valve style is designed to fit into grooved-end clamp-type fittings. Since the Sanitary... [See More]

  • Valve Type: Check; Lift Check; Back Flow; Poppet; Directional; Relief; Anti-Siphon
  • Flow (Cv): 2.40
  • Valve Size: 0.75
  • Maximum Pressure: 55.00
Safety Valve
from CEME

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
DN4 Enclosed Discharge Safety Relief Valve -- GP 331
from Seetru Limited

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: 1/8" Nominal Bore Enclosed Discharge Safety Relief Valve for Compressed Air & Gases. Notes: Relieving pressure is set... [See More]

  • Valve Type: Relief; Safety
  • Maximum Pressure: 696.18 to 3495.41
  • Valve Size: 0.38 to 0.50
  • Media Temperature: -40 to 392
T Pressure Relief Valve -- 80197
from Qosina Corp.

Make sure pressures don ’t get too high by ordering an 80 PSI 80197 T Pressure Relief Valve from Qosina. The durable valve fits 0.25-inch OD tubing. [See More]

  • Valve Type: Relief
  • Maximum Pressure: 80.00
Control Valve - Pressure Control -- HPI-1 32
from co-ax valves inc.

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: Regulator; Control Valve; Hydraulic; Metering; Relief; Coaxial Valve
  • Flow (Cv): 0.00 to 28.10
  • Valve Size: 1.26
  • Maximum Pressure: 0.00 to 600.00
Sanitary Valve -- 3SHSS (3SC-100-SS)
from Check-All Valve Mfg. Co.

The 3-A Sanitary Check Valve is an all 316/316L stainless steel check valve with a standard 32 Ra or better finish, (finer available) for use in new or existing sanitary systems. The 3SC design seals on the ID of sanitary ferrules with 3-A specified materials (standard is EPDM). The valve seals... [See More]

  • Valve Type: Check; Lift Check; Back Flow; Poppet; Directional; Relief; Anti-Siphon
  • Flow (Cv): 5.20
  • Valve Size: 1.00
  • Maximum Pressure: 1000.00
Safety Valve
from CEME

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
DN40 Atmospheric Discharge Safety Relief Valve -- GA 311
from Seetru Limited

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: 40mm Nominal Bore Atmospheric Discharge Safety Relief Valve for Compressed Air & Gases. Notes: Relieving pressure is set... [See More]

  • Valve Type: Relief; Safety
  • Maximum Pressure: 40.61 to 136.34
  • Valve Size: 2.00 to 2.50
  • Media Temperature: -4 to 392
T Pressure Relief Valve, Female Luer Lock Inlet, Male Luer Slip Outlet -- D002501
from Qosina Corp.

Qosina is a leading supplier of Pressure Relief T Valve with 2.5 psi +/- 15% Crack Tolerance. Get fast shipping and volume discounts on Relief Valves parts. [See More]

  • Valve Type: Relief
  • Maximum Pressure: 2.50
Control Valve - Pressure Control -- HPP-1 15 PC
from co-ax valves inc.

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: Regulator; Control Valve; Hydraulic; Metering; Relief; Coaxial Valve
  • Flow (Cv): 0.00 to 6.90
  • Valve Size: 0.59
  • Maximum Pressure: 0.00 to 600.00
Straight Sided Insert Valve -- SIJ (SSI-050)
from Check-All Valve Mfg. Co.

The Straight Sided Insert is a thread less check valve. designed to be inserted into any cavity where a check valve is needed and threads are not desired. Available Materials: 316 Stainless Steel (SS). Carbon Steel (CS). Alloy 20 (A2). Alloy C-276 (HC). Brass (BR). Alloy B (HB). MONEL ® (MO) [See More]

  • Valve Type: Check; Lift Check; Back Flow; Poppet; Directional; Hydraulic; Relief; Anti-Siphon
  • Flow (Cv): 2.40
  • Valve Size: 0.50
  • Maximum Pressure: 3000.00
Safety Valve
from CEME

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
DN6 Atmospheric Discharge Safety Relief Valve -- DN6
from Seetru Limited

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: 6mm Nominal Bore Atmospheric Discharge Safety Relief Valve for Compressed Air & Gases. Notes: Relieving pressure is set... [See More]

  • Valve Type: Relief; Safety
  • Maximum Pressure: 40.61 to 522.14
  • Valve Size: 0.25 to 0.38
  • Media Temperature: -22 to 392
Control Valve - Pressure Control -- SPB 08
from co-ax valves inc.

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: Regulator; Control Valve; Hydraulic; Metering; Relief; Coaxial Valve
  • Flow (Cv): 0.00 to 1.20
  • Valve Size: 0.31
  • Maximum Pressure: 145.04 to 2900.75