Air Check Valves
Last Updated: April 1, 2025
Description
Air check valves are devices designed to allow air to flow in one direction while preventing backflow in the opposite direction. They are essential components in systems where maintaining a unidirectional flow of air is critical to the operation and efficiency of the system.
Working Principle
Air check valves operate based on a simple mechanism that permits air to pass through in one direction while automatically closing to prevent reverse flow. This is typically achieved through a movable part, such as a ball or a diaphragm, that shifts to open the valve when air flows in the desired direction and seals the valve when air attempts to flow backward. This functionality is crucial in maintaining system pressure and preventing contamination or damage from backflow.
Applications
Air check valves are used in a variety of applications. For instance, they are commonly found in hydraulic systems, fluid power systems, and manual air pumps. They are also utilized in chemical, fuel, and beverage dispensing systems, as well as in spray devices and rubber bulbs for pumping air. A specific example includes their use in oil baths to regulate oil pressure, especially in environments with extreme temperatures ranging from -20° C to 200° C, where they help maintain system integrity without needing to meet stringent pressure specifications .
Advantages over other Manufacturing - Vacuum Equipment
Air check valves offer several advantages over other types of vacuum equipment. They can handle high flow velocities and are suitable for use with steam, air, gas, water, and vapor lines. Their design allows for installation in both horizontal and vertical orientations, which provides flexibility in system design. Additionally, they offer quiet operation and reduce slamming action, which can be beneficial in maintaining system stability and longevity .
Limitations
One of the limitations of air check valves is their unsuitability for clean or sterile applications, as they cannot be easily cleaned. Additionally, the presence of dirt can cause excessive wear on the valve components, potentially leading to premature failure or reduced efficiency .
Considerations
When selecting air check valves, several factors should be considered. Initial costs can vary depending on the materials and design specifications required for the application. Operating expenses are generally low, but durability can be affected by the operating environment and the presence of contaminants. Accuracy in maintaining unidirectional flow is typically high, but regular maintenance and replacement of worn components are necessary to ensure continued performance. Maintenance costs can be influenced by the ease of access to the valve and the complexity of the system in which it is installed.
from DFT Inc.
The DFT ® Model PDC ® Silent Check Valve is specially designed for use on the discharge side of reciprocating air or gas compressors. It includes a pulse damping chamber to maintain the disc in the open position during the momentary reductions in flow associated with each cycle of a... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive
- Material Of Construction: Stainless Steel (optional feature); Steel (optional feature)
- Valve Type: BallDisk; Severe Service
- Valve Size: 2.00 to 12.00
from RS Components, Ltd.
G1/2 Piloted Check Valve [See More]
- Media: Air
- Valve Size: 0.50
- Material Of Construction: Zinc
- Agency: RoHS Compliant
from Haskel International LLC
Ball Check Valves are ideal when leak tight shut-off is not necessary. This valve uses no elastomers and employs a metal to metal seal. The temperature range for the Ball Check Valves is -420 ° F to 1200 ° F (-251 ° C to 648 ° C). Available in pressures up to 100,000 PSI (6895 bar). [See More]
- Media: Air; Compressed Air; Gas
- Maximum Pressure: 15000.00 to 100000.00
from Radwell International
DISCONTINUED BY MANUFACTURER, PNEUMATIC PRECISION REGULATOR, OUTPUT RANGE 0.5-30, CHECK VALVE, 1/4 INCH NPT, 250PSIG. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air
from Clippard
Check Valve, #10-32 Ports [See More]
- Media: Air; Compressed Air
- Material Of Construction: Brass / Bronze
- Valve Type: Lift Check
- Valve Size: 0.19
from Festo Corporation
Valve function: non-return function. Screw-in or in-line installation. With connecting thread at both ends, push-in connector at both ends, thread/push-in connector [See More]
- Media: Air; Compressed Air
- Connection Description: Threaded; G1/2
- Material Of Construction: Aluminum
- Maximum Pressure: 5.80 to 174.05
from Rotork plc
Suitable for air quality to ISO 8573.1 Class 4: dirt, water and oil High flow - up to 8.6 Cv Working pressure up to 188 psi / 13 bar working Allows free flow in one direction and provides positive checked flow in the reverse direction Wide selection of inlet and outlet connections available [See More]
- Media: Air; Water
- Flow (Cv): 8.60
- Maximum Pressure: 188.00
from DFT Inc.
The DFT ® Excalibur ® Silent Check Valve is a spring-assisted, center guided, in-line, check valve that provides reliable, low maintenance service for a wide range of fluids and pressure/temperature combinations. The valve consists of a body, gasket, seat, spring, disc with stem and guide... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive
- Material Of Construction: Aluminum (optional feature); Brass / Bronze (optional feature); Stainless Steel (optional feature); Steel (optional feature); Exotic Metal (optional feature)
- Valve Type: BallDisk; Severe Service
- Valve Size: 2.00 to 24.00
from RS Components, Ltd.
G1/4 Piloted Check Valve [See More]
- Media: Air
- Agency: RoHS Compliant
- Maximum Pressure: 7.25 to 145.04
from Radwell International
PILOTED CHECK VALVE, HGL SERIES, UNLOCKABLE NON-RETURN FUNCTION, PNEUMATIC ACTUATION, G1/2 PNEUMATIC CONNECTIONS, G3/8 PILOT AIR PORT 21, 0.5-10 BAR OPERATING PRESSURE, 1600 L/MIN STANDARD NOMINAL FLOW RATE, 530033. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air
from Clippard
Check Valve, #10-32 Ports [See More]
- Media: Air; Compressed Air
- Material Of Construction: Brass / Bronze
- Valve Type: Lift Check
- Valve Size: 0.19
from Festo Corporation
Valve function: non-return function. Screw-in or in-line installation. With connecting thread at both ends, push-in connector at both ends, thread/push-in connector [See More]
- Media: Air; Compressed Air
- Connection Description: Threaded; G¼
- Material Of Construction: Aluminum
- Maximum Pressure: 5.80 to 174.05
from DFT Inc.
The DFT ® Model DLC ® is a corrosion resistant, dependable, versatile and economical spring assisted, in-line check valve for a wide range of applications. Whether the fluid is liquid, gas or steam, the DLC ® provides tight shut-off and protects other equipment in the system from water... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Steam
- Material Of Construction: Stainless Steel; Exotic Metal (optional feature)
- Valve Type: BallDisk; Severe Service
- Valve Size: 0.50 to 3.00
from RS Components, Ltd.
G1/8 Piloted Check Valve [See More]
- Media: Air
- Valve Size: 0.12
- Material Of Construction: Zinc
- Agency: RoHS Compliant
from Radwell International
PNEUMATIC REGULATOR, MK 8 SERIES, 1/8 INCH PORT SIZE, DUAL PRESSURE W/ NON-RELIEVING CHECKS, 5-60 PSIG, REGULATOR UNIT ONLY. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air
from Clippard
Check Valve, #10-32 Ports [See More]
- Media: Air; Compressed Air
- Material Of Construction: Brass / Bronze
- Valve Type: Lift Check
- Valve Size: 0.19
from Festo Corporation
Valve function: non-return function. Screw-in or in-line installation. With connecting thread at both ends, push-in connector at both ends, thread/push-in connector [See More]
- Media: Air; Compressed Air
- Connection Description: G1/8
- Material Of Construction: Brass / Bronze
- Maximum Pressure: 5.80 to 116.03
from DFT Inc.
The FBC ™ is a compact, lightweight, insert wafer check valve that easily installs between two flanges. The in-line, spring assisted design prevents "water hammer" and "reverse flow". The FBC ™ contains all of the proven features of the Basic-Check ® valve developed by DFT ® over... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Steam
- Material Of Construction: Stainless Steel
- Valve Type: BallDisk; Umbrella; Severe Service
- Valve Size: 1.00 to 4.00
from RS Components, Ltd.
Piloted Non Return Valve, G1/8 x 6mm [See More]
- Media: Air
- Valve Size: 0.20
- Material Of Construction: Zinc
- Agency: RoHS Compliant
from Radwell International
PNEUMATIC REGULATOR ASSEMBLY, DUAL PRESSURE WITH NON-RELIEVING CHECKS, 10-130 PSIG, 0.7-9 BAR. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air
from Clippard
Check Valve, #10-32 Ports [See More]
- Media: Air; Compressed Air
- Material Of Construction: Brass / Bronze
- Valve Type: Lift Check
- Valve Size: 0.19
from Festo Corporation
Valve function: non-return function. Screw-in or in-line installation. With connecting thread at both ends, push-in connector at both ends, thread/push-in connector [See More]
- Media: Air; Compressed Air
- Connection Description: Threaded; G3/4
- Material Of Construction: Aluminum
- Maximum Pressure: 5.80 to 174.05
from DFT Inc.
The DFT ® Restrictor Check Valve (RCV) is a versatile, all-purpose, spring-assisted, in-line check valve for applications that require higher cracking pressures to open the check valve than those offered by other DFT ® check valves. Cracking pressures are available from 2 to 40 psi. Like the... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive
- Material Of Construction: Stainless Steel
- Valve Type: BallDisk; Severe Service
- Valve Size: 0.25 to 2.50
from RS Components, Ltd.
G3/8 Piloted Non Return Valve [See More]
- Media: Air
- Valve Size: 0.38
- Material Of Construction: Zinc
- Agency: RoHS Compliant
from Radwell International
CHECK REGULATOR, 2012 SERIES, DOUBLE ENDED, 10-130 PSIG, 4-PIN CONNECTOR. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air
from Clippard
Check Valve, #10-32 Ports [See More]
- Media: Air; Compressed Air
- Material Of Construction: Brass / Bronze
- Valve Type: Lift Check
- Valve Size: 0.19
from Festo Corporation
Valve function: non-return function. Screw-in or in-line installation. With connecting thread at both ends, push-in connector at both ends, thread/push-in connector [See More]
- Media: Air; Compressed Air
- Connection Description: Threaded; G3/8
- Material Of Construction: Aluminum
- Maximum Pressure: 5.80 to 174.05
from DFT Inc.
The DSV ® is an in-line spring-assisted check valve designed to prevent flow reversal in industries with strict cleanliness codes. To accommodate various piping arrangements, the DSV ® is available as a "Vertical" or "Horizontal" valve. The Horizontal valve is for Horizontal lines requiring... [See More]
- Media: Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Steam
- Material Of Construction: Stainless Steel
- Valve Type: BallDisk; Severe Service
- Valve Size: 0.50 to 3.00
from RS Components, Ltd.
G3/8 Piloted Non Return Valve [See More]
- Media: Air
- Agency: RoHS Compliant
- Maximum Pressure: 7.25 to 145.04
from Radwell International
REGULATOR, HIGH FLOW IN COMPACT SIZE, FRL SERIES, STANDARD OUTPUT PRESSURE 0-125 PSIG, 3.8 OZ BOWL, INTERNAL CHECK, G TAP (BSPP) THREADS, 1/4 PORT SIZE, 0-60 PSIG OUTPUT. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air
- Connection Description: Threaded
from Clippard
Check Valve, 1/8" Ports [See More]
- Media: Air; Compressed Air
- Material Of Construction: Brass / Bronze
- Valve Type: Lift Check
- Valve Size: 0.12
from Festo Corporation
Valve function: non-return function. Screw-in or in-line installation. With connecting thread at both ends, push-in connector at both ends, thread/push-in connector [See More]
- Media: Air; Compressed Air
- Connection Description: M5
- Material Of Construction: Brass / Bronze
- Maximum Pressure: 5.80 to 116.03
from DFT Inc.
The DSV ® is an in-line spring-assisted check valve designed to prevent flow reversal in industries with strict cleanliness codes. To accommodate various piping arrangements, the DSV ® is available as a "Vertical" or "Horizontal" valve. The Horizontal valve is for Horizontal lines requiring... [See More]
- Media: Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Steam
- Material Of Construction: Stainless Steel
- Valve Type: BallDisk; Severe Service
- Valve Size: 0.50 to 3.00
from RS Components, Ltd.
M5 Piloted Non Return Valve [See More]
- Media: Air
- Valve Size: 0.20
- Material Of Construction: Zinc
- Agency: RoHS Compliant
from Radwell International
REGULATOR, PNEUMATIC, ISO SIZE 2, A PORT, CHECK VALVE, 0-150 PSI, 0-1.0MPA. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air
from Clippard
Check Valve, 1/8" Ports [See More]
- Media: Air; Compressed Air
- Material Of Construction: Brass / Bronze
- Valve Type: Lift Check
- Valve Size: 0.12
from Festo Corporation
Valve function: non-return function. Screw-in or in-line installation. With connecting thread at both ends, push-in connector at both ends, thread/push-in connector [See More]
- Media: Air; Compressed Air
- Connection Description: QS-1/2
- Material Of Construction: Aluminum
- Maximum Pressure: -14.50 to 145.04
from DFT Inc.
The DFT ® Model GLC ® Silent Check Valve is a spring-assisted, center guided, in-line, flanged check valve that provides reliable, low maintenance service for a wide range of fluids and pressure/temperature combinations. The valve consists of a body, seat, spring, disc with stem and guide... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive
- Material Of Construction: Aluminum (optional feature); Brass / Bronze (optional feature); Cast Iron (optional feature); Stainless Steel (optional feature); Steel (optional feature); Exotic Metal (optional feature)
- Valve Type: BallDisk; Severe Service
- Valve Size: 1.00 to 24.00
from RS Components, Ltd.
Pneumatic Non Return Valve 8mm Push-in [See More]
- Media: Air
- Connection Description: Tube Fitting
- Valve Size: 0.31
- Maximum Pressure: -14.50 to 145.04
from Radwell International
PNEUMATIC REGULATOR, MK8 SERIES, 1/4" PORTS, DUAL PRESSURE W/RELIEVING CHECKS, 10-130 PSIG (0.7-9 BAR), MANIFOLD BLOCK MOUNT, PLUG-IN RECEPTACLE, NPTF, TERMINAL BLOCK IN MOUNTING. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air
from Clippard
Check Valve, 1/8" Ports [See More]
- Media: Air; Compressed Air
- Material Of Construction: Brass / Bronze
- Valve Type: Lift Check
- Valve Size: 0.12
from Festo Corporation
Valve function: non-return function. Screw-in or in-line installation. With connecting thread at both ends, push-in connector at both ends, thread/push-in connector [See More]
- Media: Air; Compressed Air
- Connection Description: Threaded; QS-12
- Material Of Construction: Aluminum
- Maximum Pressure: -14.50 to 145.04
from DFT Inc.
The DFT ® Basic-Check ® valve is a versatile all-purpose, spring-assisted, in-line check valve that provides reliable, low maintenance service for a wide range of liquids and gases at various pressure/temperature combinations. The valve consists of a guard cage, spring, valve disc, retaining... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive
- Material Of Construction: Stainless Steel
- Valve Type: BallDisk; Severe Service
- Valve Size: 0.25 to 2.50
from RS Components, Ltd.
Hand Lever G1/4" 5/2 Manual Valve [See More]
- Media: Air
- Agency: RoHS Compliant
- Material Of Construction: Aluminum; Die Cast Aluminium
from Radwell International
CHECK VALVE REGULATOR INTERLOCK LQA. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air
from Clippard
Check Valve, 1/8" Ports [See More]
- Media: Air; Compressed Air
- Material Of Construction: Brass / Bronze
- Valve Type: Lift Check
- Valve Size: 0.12
from Festo Corporation
Valve function: piloted non-return function. Pneumatically piloted. Screw-in with external thread. Pilot air connection: M5, G1/8, G1/4, G3/8, QS-4. Manually actuated exhaust possible with separate accessory [See More]
- Media: Air; Compressed Air
- Maximum Pressure: 7.25 to 145.04
- Connection Description: Threaded; G1/2
- Media Temperature: 14 to 140
from DFT Inc.
The DFT ® Model SCV ® is a corrosion resistant, dependable, versatile and economical spring-assisted, in-line check valve for a wide range of applications. Whether the fluid is liquid, gas or steam, the SCV ® provides tight shut-off and protects other equipment in the system from water... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Steam
- Material Of Construction: Stainless Steel
- Valve Type: BallDisk; Severe Service
- Valve Size: 0.50 to 3.00
from RS Components, Ltd.
H-1/4-B non-return valve [See More]
- Media: Air
from Radwell International
DISCONTINUED BY MANUFACTURER, REGULATING CHECK VALVE, PNEUMATIC, 3/4 INCH NPTF, W/ GAUGE. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air
from Clippard
The R-614 Multi Check Valve integrates four check valves in one compact valve body. Take advantage of the many features of this versatile line including easy manifold mounted design, integrated circuitry, Octo port outlet design, maximized performance and more. • Efficient design. • Eight... [See More]
- Media: Air; Water; Oil
- Maximum Pressure: 150.00
- Connection Description: Threaded
- Media Temperature: 32 to 180
from Festo Corporation
Valve function: piloted non-return function. Pneumatically piloted. Screw-in with external thread. Pilot air connection: M5, G1/8, G1/4, G3/8, QS-4. Manually actuated exhaust possible with separate accessory [See More]
- Media: Air; Compressed Air
- Maximum Pressure: 2.90 to 145.04
- Connection Description: Threaded; 1/2 NPT
- Media Temperature: -4 to 176
from DFT Inc.
DFT ® Vacuum Breakers provide effective protection against collapse of pressure vessels, tanks and rolls. They prevent condensate "back-up" when equipment is shut down or inlet steam is reduced by modulating control valves. In piping systems, DFT ® Vacuum Breakers are used to break siphons,... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive
- Material Of Construction: Stainless Steel
- Valve Type: BallDisk; Severe Service
- Valve Size: 1.00 to 4.00
from RS Components, Ltd.
H-QS-6 non-return valve [See More]
- Media: Air
- Connection Description: Tube Fitting
- Valve Size: 0.24
- Maximum Pressure: -14.50 to 145.04
from Radwell International
DISCONTINUED BY MANUFACTURER, REGULATOR CHECK VALVE, 1/2 INCH BODY SIZE, 3/4 INCH PORT SIZE, NPT THREAD, GAUGE PRESSURE 0-160 PSI/0-1.1 MPA, SET PRESSURE 0.05-0.85 MPA. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air
- Connection Description: Threaded
from Festo Corporation
Valve function: piloted non-return function. Pneumatically piloted. Screw-in with external thread. Pilot air connection: M5, G1/8, G1/4, G3/8, QS-4. Manually actuated exhaust possible with separate accessory [See More]
- Media: Air; Compressed Air
- Maximum Pressure: 7.25 to 145.04
- Connection Description: Threaded; G1/2
- Media Temperature: 14 to 140
from DFT Inc.
The ALC ® is an in-line, spring assisted, single guided "wafer" check valve designed to prevent "water hammer" and "reverse" flow. The lightweight compact design fits between mating flanges and meets API 594 Face-to-Face dimensions. The ALC ® is an easy to maintain check valve for... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Steam
- Material Of Construction: Stainless Steel (optional feature); Steel (optional feature); Exotic Metal (optional feature)
- Valve Type: BallDisk; Umbrella; Severe Service
- Valve Size: 10.00 to 24.00
from RS Components, Ltd.
H-QS-10 non-return valve [See More]
- Media: Air
- Connection Description: Tube Fitting
- Valve Size: 0.39
- Maximum Pressure: -14.50 to 145.04
from Radwell International
AIR PRESSURE REGULATOR, 700 PRECISION, 1/2 INCH NPT PORT, 0-2 PSI / 0-0.15 BAR / RANGE, CHECK VALVE / INTEGRAL SAFETY DEVICE / QUICKLY DUMPS OUTPUT, PRESSURE WHEN THERE IS A LOSS OF SUPPLY AIR. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air
from Festo Corporation
Valve function: piloted non-return function. Pneumatically piloted. Screw-in with external thread. Pilot air connection: M5, G1/8, G1/4, G3/8, QS-4. Manually actuated exhaust possible with separate accessory [See More]
- Media: Air; Compressed Air
- Maximum Pressure: 7.25 to 145.04
- Connection Description: Threaded; G¼
- Media Temperature: 14 to 140
from DFT Inc.
The DFT ® Model WLC Wafer style Silent Check Valve is a lightweight, spring-assisted, in-line check valve that provides reliable, low maintenance service for a wide range of fluids and pressure/temperature combinations. The joint between the seat ring and body is sealed by the flange gasket upon... [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive
- Material Of Construction: Cast Iron (optional feature); Stainless Steel (optional feature); Steel (optional feature)
- Valve Type: BallDisk; Umbrella; Severe Service
- Valve Size: 1.00 to 10.00
from RS Components, Ltd.
HE-2-QS-10 shut-off valve [See More]
- Media: Air
from Radwell International
MODULAR AIR COMBINATION UNIT, FILTER/REGULATOR/LUBRICATOR, INTER CHECK VALVE, 0.1 TO 0.85 MPA, 3/4 IN BODY SIZE/ NPT, 3.4 IN PORT SIZE/ NPT. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air
from Festo Corporation
Valve function: piloted non-return function. Pneumatically piloted. Screw-in with external thread. Pilot air connection: M5, G1/8, G1/4, G3/8, QS-4. Manually actuated exhaust possible with separate accessory [See More]
- Media: Air; Compressed Air
- Maximum Pressure: 7.25 to 145.04
- Connection Description: Threaded; G¼
- Media Temperature: 14 to 140
from RS Components, Ltd.
AS*200-X785, Clapet anti-retour pilote, [See More]
- Media: Air
- Agency: RoHS Compliant
from Radwell International
DUAL CHECK VALVE ASSEMBLY, BACKFLOW PREVENTER, 1/2" MODEL 760. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air
- Valve Type: Back Flow
from Festo Corporation
Valve function: piloted non-return function. Pneumatically piloted. Screw-in with external thread. Pilot air connection: M5, G1/8, G1/4, G3/8, QS-4. Manually actuated exhaust possible with separate accessory [See More]
- Media: Air; Compressed Air
- Maximum Pressure: 7.25 to 145.04
- Connection Description: Threaded; G¼
- Media Temperature: 14 to 140
from RS Components, Ltd.
AS*200-X785, Clapet anti-retour pilote, [See More]
- Media: Air
- Agency: RoHS Compliant
from Radwell International
MAINTENANCE KIT, BOOSTER REGULATOR KIT, FOR VBA SERIES, THESE KITS INCLUDE; PISTON SEAL, GOVERNOR ASSEMBLY, CHECK VALVE, GASKET, ROD SEAL, MOUNTING SCREWS, COVER C' ASSEMBLY AND GREASE PACK.. FREE 2 YEAR RADWELL WARRANTY [See More]
- Media: Air; Gas
from Festo Corporation
Valve function: piloted non-return function. Pneumatically piloted. Screw-in with external thread. Pilot air connection: M5, G1/8, G1/4, G3/8, QS-4. Manually actuated exhaust possible with separate accessory [See More]
- Media: Air; Compressed Air
- Maximum Pressure: 7.25 to 145.04
- Connection Description: Threaded; G1/8
- Media Temperature: 14 to 140
from Air Logic
The Check Valves permit flow in one direction only; the operation of the check valve is based on the movement of a small disc within the housing. The disc shifts within the housing as the pressure differential changes from forward to reverse. A flat surface on one side of the disc seals off flow,... [See More]
- Media: Air; Compressed Air
- Material Of Construction: PP
- Valve Type: Wafer
- Valve Size: 0.06 to 0.12
from XOMOX (A Crane Co. Company)
Lined valves and accessories use fluorocarbons such as PFA, PVDF, PTFE, PFA-AS (antistatic), and UHMWPE upon customer request. The melt process allows the liner to be locked into dovetails, locking grooves, and locking holes in the casting. Consequently, the potential for liner collapse and blow out... [See More]
- Media: Air
- Material Of Construction: Ductile Iron; FEP or PFA Lined
- Valve Type: BallDisk
- Valve Size: 1.00
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]
- Media: Hydraulic; Air; Water; Hot Water; Cold 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
- Material Of Construction: Brass / Bronze; Stainless Steel; Steel; Exotic Metal; Alloy 20, Alloy C-276, Titanium
- Valve Type: Lift Check; Poppet; Back Flow
- Valve Size: 0.50
from Xiamen Landee Industries Co., Ltd.
Cast Iron Valves, Meeting Global Quality Standards. Model Number: LD 012-CI. Key Specifications/Special Features: Types: gate, globe, check, ball, butterfly, plug, foot, angle, air, Y-strainer... Manufacturing standards: API, ANSI, BS, DIN, JIS, MSS SP. Size range: from 1/2 inch to 64 inch (DN15mm -... [See More]
- Media: Air
- Material Of Construction: Cast Iron
- Valve Type: BallDisk; Foot Valve
- Valve Size: 0.50 to 64.00
from ASCO
• Compact design. • In-line mounted. • Quiet operation. • Instantaneous shutoff against reverse flow, low forward. pressure opening. • Disc seats before reverse flow to avoid fluid shock on. reverse pressure differential [See More]
- Media: Air; Water
- Material Of Construction: Brass / Bronze
- Valve Type: BallDisk
- Valve Size: 0.25
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Polycarbonate
- Valve Type: BallDisk
- Valve Size: 0.12 to 0.19
from WEH Technologies Inc.
High-performance check valve for use with liquid media and air pressure. These brass check valves are specially designed for hydraulic and pneumatic applications in plant engineering and are well proven in applications with submesible pump, pressure, air conditioning systems, heating systems etc. [See More]
- Media: Hydraulic; Air
- Valve Size: 0.39 to 1.97
- Material Of Construction: Brass / Bronze
- Connection Description: Threaded
from Harwood Engineering Company
Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. These valves allow fluids to flow in only one direction and require a minimum pressure to open. Features. Service for liquids and gases at pressures up to 200,000... [See More]
- Media: Air; Gas
- Material Of Construction: Stainless Steel
- Valve Type: BallDisk
- Connection Description: Inlet: 4L, Outlet: 4L
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]
- Media: Air; Compressed Air; Water
- Media Temperature: -10 to 900
- Maximum Pressure: 3000.00 to 6000.00
- Flow (Cv): 0.10 to 4.48
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]
- Media: Air; Compressed Air
- Valve Size: 0.62 to 1.00
- Material Of Construction: Stainless Steel (optional feature); polymer
- Connection Description: Threaded (optional feature); Union (optional feature)
from Carr Lane Manufacturing Co.
Simple hydraulic flow restrictor that allows fluid to flow in one direction only. In-line mounting [See More]
- Media: Hydraulic; Air; Compressed Air
- Maximum Pressure: 7500.00
- Connection Description: Threaded
from Mueller Steam Specialty
Recommended for use in higher temperature or pressure applications. [See More]
- Media: Hydraulic (optional feature); Air; Compressed Air (optional feature); Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater (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); High Temp and Pressure Applications
- Material Of Construction: Carbon Steel
- Valve Type: BallDisk
- Valve Size: 2.00 to 4.00
from Quarktwin Technology Ltd.
One-Way Non-Return Valve (Check Valve) Free Hanging (In-Line) [See More]
- Media: Air; Air, Inert Gas
- Maximum Pressure: 30.00 to 116.00
- Connection Description: Tube Fitting; Push-In Connection for Tubing 5/32\" (4.00mm) Dia
from Pneumadyne, Inc.
Flow controls and Needle valves are used to reduce the rate of flow in a leg of a system, consequently the restriction slows cylinder speed. Finely threaded stems allow gradual adjustment of controlled flow to match system requirements. Although the basic function is flow restriction, the... [See More]
- Media: Air; Compressed Air; Water
- Material Of Construction: Brass / Bronze; Stainless Steel; Exotic Metal
- Valve Type: Lift Check
- Valve Size: 0.06
from Spirax-Sarco
The DCV41 is an austenitic stainless steel disc check valve available with either screwed or socket weld end connections. Its function is to prevent reverse flow on a wide variety of fluids for applications in process lines, hot water systems, steam and condensate systems. [See More]
- Media: Air; Water; Gas; Steam
- Material Of Construction: Stainless Steel
- Valve Type: BallDisk
- Valve Size: 0.50 to 1.00
from Qosina Corp.
Check Valve - 34019 [See More]
- Media: Air; Water
- Material Of Construction: MBS, Silicone
from KSB AG
Design. Dual-plated wafer type check valve, single-piece body. Metal or elastomer sealing. Cast iron, ductile iron, cast steel or stainless steel body; maintenance free. PN 10 / 16 / 25 / 40, Class 150, Class 300. EN, ANSI and JIS flange connections available. Overview of technical data. Body... [See More]
- Media: Air; Compressed Air; Water; Hot Water; Cold Water ; Wastewater
- Material Of Construction: Cast Iron (optional feature); Stainless Steel (optional feature); Steel (optional feature)
- Valve Type: Wafer
- Valve Size: 1.97 to 23.62
from Hi-Tech Controls, Inc.
The check valves in the VNR Series are available with M5 (10-32 UNF), 1/8" and 1/4" ports. They must be used when it is required to intercept a flow in one direction only. The design of these. valves is of the poppet type and this feature allows operation at low pressures both when there is a free... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Brass / Bronze
- Valve Type: Lift Check
- Connection Description: Threaded; M5 [10-32 UNF]
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]
- Media: Air; Water; Gas
from DK-LOK U.S.A.
Up to 3000psig (206bar). Up to 190 ℃ (375 ℉). ss316, Brass. DK-LOK OD1/8 - 1 inch. Pipe thread 1/8 - 1 inch [See More]
- Media: Air; Compressed Air; Water; Gas
- Material Of Construction: Brass / Bronze; Stainless Steel; Viton, NBR, (optional EPDM, Kalrez); PTFE (optional feature); Rubber
- Valve Type: Lift Check
- Valve Size: 0.19
from FUJIKURA COMPOSITES Inc.
Features. Simple design makes low price. Damages to seal material were reduced by double-touch system (O-ring and metal-seal). Various port sizes and seal materials. Applications. Machine Tools ：Milling machine, NC lathe, laser processing machine etc. Industrial furnace ：General... [See More]
- Media: Air; Compressed Air; Water
- Valve Size: 0.12 to 1.00
- Material Of Construction: Brass / Bronze; Stainless Steel
- Connection Description: Threaded
from MAXPRO Technologies, Inc.
MAXIMATOR ball check valves prevent reverse flow where bubble tight shutoff is not mandatory. These check valves are designed with a ball cradled floating poppet to assure positive inline seating. This poppet design allows full flow around the ball to minimize pressure drop. Check valves are rated... [See More]
- Media: Air; Compressed Air; Gas
- Valve Size: 0.25
- Material Of Construction: Stainless Steel
- Connection Description: Tube Fitting
from IMI Bimba
Ideal for reliably holding an actuator position in a variety of applications. ¼ or 1/8 NPT output ports are offered for direct cylinder mount, minimizing space requirements and easing installation. The input port swivels to accommodate valve alignment. 10-32 (F) & ¼ push-in pilot... [See More]
- Media: Air; Compressed Air
from Flomatic Valves
4082 - AIS Compliant ductile iron body with epoxy coating and access port, flanged connection class 150. NITRILE (Buna-N) covered metal sinking ball. Stainless steel fasteners. Also available with special “Floating Ball ” for flood control or air vent application –consult factory... [See More]
- Media: Air
- Material Of Construction: Ductile Iron
- Valve Type: BallDisk
- Valve Size: 3.00 to 14.00
from Victaulic Co. of America
SWING TYPE. 2 INCH NOMINAL SIZE. 2 NOMINAL SIZE - DECIMAL. 2 NOMINAL SIZE - FRACTIONAL. ACID, AIR, OIL APPLICATION. 20 TO 300 DEG F TEMPERATURE RATING. BONDED BUMPER FOR COATING PROTECTION, END SEAL FLUOROELASTOMER GASKET INCLUSIONS/FEATURES. CARBON STEEL BODY MATERIAL. 300 PSI PRESSURE RATING. 2... [See More]
- Media: Air; Gasoline / Diesel Fuel
- Valve Size: 2.00
- Material Of Construction: Steel
- Maximum Pressure: 300.00
from SAS Automation, LLC
Closes automatically if attached vacuum cups fail to secure the part, thus ensuring the efficiency of the remaining cups. Inserted between the cup and the mounting arm [See More]
- Media: Air; Compressed Air
- Connection Description: Threaded
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]
- Media: Air; Water; Hot Water; Cold 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
- Material Of Construction: Aluminum (optional feature); Brass / Bronze; Stainless Steel; Steel; Exotic Metal; Alloy 20, Alloy C-276, Titanium
- Valve Type: Lift Check; Poppet; Back Flow
- Valve Size: 0.50
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Nylon
- Valve Type: BallDisk
- Valve Size: 0.12 to 0.19
from WEH Technologies Inc.
High-performance check valves for use with liquid and gaseous media. For many years we have been a preferred supplier for a wide range of industries with our check valve range. The WEH check valves are especially designed for both liquid and gaseous media. The check valve system is designed to... [See More]
- Media: Air; Gas
- Valve Size: 0.16 to 1.97
- Material Of Construction: Stainless Steel
- Connection Description: Threaded
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]
- Media: Air; Compressed Air; Water
- Valve Size: 0.09 to 0.69
- Valve Type: BallDisk
- Connection Description: Threaded
from Carr Lane Manufacturing Co.
Holds clamping pressure until released by a separate pilot pressure line (allows only one-way flow until released). Can be used as a safety device in case the fluid line to the fixture could become damaged. Can also be used to prevent workpieces from floating between opposing clamps. Leakage-free... [See More]
- Media: Hydraulic; Air; Compressed Air
- Valve Size: 0.25 to 0.50
- Valve Type: BallDisk
- Connection Description: Threaded; 1/4" to 1/2" BSPP
from Mueller Steam Specialty
Designed for liquids and gases where flow reversal can cause surge and water hammer. Used extensively in pump suction and discharge applications. [See More]
- Media: Hydraulic (optional feature); Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater (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)
- Material Of Construction: Brass / Bronze
- Valve Type: Wafer
- Valve Size: 1.00 to 10.00
from Quarktwin Technology Ltd.
Non-Return Valve (Check Valve) Free Hanging (In-Line) [See More]
- Media: Air; Air, Inert Gas, Liquid
- Media Temperature: 32 to 140
- Maximum Pressure: -1.00 to 145.00
from Pneumadyne, Inc.
Cost effective, space saving solution for the use of single or multiple valves. A wide variety of connector, electrical and mounting options are available to accommodate numerous applications. Convenient Line & 90 ° Connectors (both with LED) provide quick electrical connection when used in... [See More]
- Media: Air; Compressed Air; Water
- Material Of Construction: Brass / Bronze; Stainless Steel; Exotic Metal
- Valve Type: Lift Check; Poppet
- Valve Size: 0.12 to 0.25
from Spirax-Sarco
A range of austenitic stainless steel split disc check valves in a wafer pattern suitable for fitting between ASME (ANSI) Class 150 and Class 300, JIS / KS 10K and 20K flanges. Their function is to prevent reverse flow on a wide variety of fluids for applications in process lines, hot water systems,... [See More]
- Media: Air; Water; Steam
- Material Of Construction: Stainless Steel
- Valve Type: Wafer
- Valve Size: 1.97 to 11.81
from Qosina Corp.
Check Valve, Barbed - 80512 [See More]
- Media: Air; Water
- Maximum Pressure: 0.50
- Material Of Construction: PP, Silicone; PP
from Hi-Tech Controls, Inc.
These valves have been designed to mount directly into the cylinder ports. The inner design of the blocking valves Series VBO and VBU allows a very high flow rate and reliable operation. [See More]
- Media: Air; Compressed Air
- Valve Size: 0.12
- Material Of Construction: Brass / Bronze
- Connection Description: Threaded; 1/8" NPTF
from DK-LOK U.S.A.
Up to 6000 psig (413bar). Up to 204 ℃ (400 ℉). ss316. O-ring seal blow-out proof design. DK-LOK OD 1/8 - OD1 inch. Pipe thread 1/8 - 1" [See More]
- Media: Air; Compressed Air; Water; Gas; Sour Gas (optional feature)
- Material Of Construction: Brass / Bronze; Stainless Steel; Viton, NBR, (optional EPDM, Kalrez); PTFE (optional feature); Rubber
- Valve Type: Lift Check
- Connection Description: Compression; 1/8" Dk-Lok
from FUJIKURA COMPOSITES Inc.
Features. 'PC8 series ' is lightweight because resin. In addition to tap water, various liquids can be used. Piping installation posture is free. Low cracking specification. Applications. Machine Tools ：Milling machine, NC lathe, laser processing machine etc. Industrial furnace... [See More]
- Media: Air; Compressed Air; Water
- Valve Size: 0.25 to 0.50
- Material Of Construction: Polyacetal
- Connection Description: Threaded
from MAXPRO Technologies, Inc.
MAXIMATOR o-ring check valves provide high quality directional flow control and tight shutoff for liquids and gases. All check valves are supplied with glands and collars. These check valves are not to be used as a relief device. Click on the underlined item number below to request a quote. [See More]
- Media: Air; Compressed Air; Gas
- Valve Size: 0.25
- Material Of Construction: Stainless Steel
- Connection Description: Tube Fitting
from Flomatic Valves
4082S6 - All 316 Stainless steel body and access port, flanged connection class 150. Nitrile (Buna-N) covered metal sinking ball. Stainless steel fasteners. Also available with special “Floating Ball ” for flood control or air vent application –consult factory for application and... [See More]
- Media: Air
- Material Of Construction: Stainless Steel
- Valve Type: BallDisk
- Valve Size: 3.00 to 8.00
from Victaulic Co. of America
SWING TYPE. 2 INCH NOMINAL SIZE. 2 NOMINAL SIZE - DECIMAL. 2 NOMINAL SIZE - FRACTIONAL. ANSI/NSF 61, UL APPLICABLE STANDARD. ACID, AIR, WATER APPLICATION. -30 TO 230 DEG F TEMPERATURE RATING. END SEAL EPDM GASKET INCLUSIONS/FEATURES. CARBON STEEL BODY MATERIAL. 1000 PSI PRESSURE RATING. 2 INCH IPS... [See More]
- Media: Air; Water
- Valve Size: 2.00
- Material Of Construction: Steel
- Maximum Pressure: 1000.00
from Check-All Valve Mfg. Co.
The CAV series of valves are not catalog items but rather are custom designed and tailored to meet customer specific connections or valve configurations. If you have a check valve application where our standard catalog items do not quite match what you are looking for, contact our sales department... [See More]
- Media: Hydraulic; Air; Water; Hot Water; Cold 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
- Material Of Construction: Aluminum; Brass / Bronze; Stainless Steel (optional feature); Steel (optional feature); Exotic Metal; Titanium, Monel
- Valve Type: Cartridge (optional feature); Lift Check; Poppet; Back Flow
- Connection Description: Threaded (optional feature); Compression (optional feature); BoltFlange (optional feature); Clamp Flange (optional feature); Union (optional feature); Tube Fitting (optional feature); Butt Weld (optional feature); Socket Weld (optional feature); Face Seal (optional feature)
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Polycarbonate
- Valve Type: BallDisk
- Valve Size: 0.12 to 0.19
from Mueller Steam Specialty
Designed for liquids and gases where flow reversal can cause surge and water hammer. Used extensively in pump suction and discharge applications. [See More]
- Media: Hydraulic (optional feature); Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater (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)
- Material Of Construction: Brass / Bronze
- Valve Type: Wafer
- Valve Size: 1.00 to 10.00
from Quarktwin Technology Ltd.
Non-Return Valve (Check Valve) Sub-Base Mount [See More]
- Media: Air; Air, Inert Gas, Liquid
- Maximum Pressure: 7.00 to 145.00
- Connection Description: Threaded; Threaded
- Media Temperature: 14 to 140
from Spirax-Sarco
A range of austenitic stainless steel split disc check valves in a wafer pattern suitable for fitting between PN16 and PN40 flanges. Their function is to prevent reverse flow on a wide variety of fluids for applications in process lines, hot water systems, steam and condensate systems. The... [See More]
- Media: Air; Water; Steam
- Material Of Construction: Stainless Steel
- Valve Type: Wafer
- Valve Size: 1.97 to 11.81
from Qosina Corp.
Qosina offers an extensive line of Check Valves available in a variety of styles that are in stock and ready for immediate delivery. Made of SAN, MABS, and silicone, Qosina part # 80506 features a low, 0.087 psi cracking pressure ideal for infusion, drainage and irrigation applications. This barbed... [See More]
- Media: Air; Water
- Maximum Pressure: 0.09
- Material Of Construction: SAN, MABS, Silicone
from DK-LOK U.S.A.
Up to 6000 psig (413bar). Up to 204 ℃ (400 ℉). ss316. O-ring seal blow-out proof design. DK-LOK OD 1/8 - OD1 inch. Pipe thread 1/8 - 1" [See More]
- Media: Air; Compressed Air; Water; Gas; Sour Gas (optional feature)
- Material Of Construction: Brass / Bronze; Stainless Steel; Viton, NBR, (optional EPDM, Kalrez); PTFE (optional feature); Rubber
- Valve Type: Lift Check
- Connection Description: Compression; 1/2" Dk-Lok
from FUJIKURA COMPOSITES Inc.
Features. Adjustment of cracking pressure is possible. High pressure model (maximum working pressure: 20 Mpa [2900.75psi]). Ideal for small-volume applications such as prototype, research, etc. Compact, lightweight design. Applications. Machine Tools ：Milling machine, NC lathe, laser... [See More]
- Media: Air; Water
- Valve Size: 0.25 to 0.50
- Material Of Construction: Brass / Bronze; Stainless Steel
- Connection Description: Threaded
from MAXPRO Technologies, Inc.
MAXIMATOR ball check valves prevent reverse flow where bubble tight shutoff is not mandatory. These check valves are designed with a ball cradled floating poppet to assure positive inline seating. This poppet design allows full flow around the ball to minimize pressure drop. Check valves are rated... [See More]
- Media: Air; Compressed Air; Gas
- Connection Description: Tube Fitting
- Material Of Construction: Stainless Steel
- Maximum Pressure: 21000.00
from Flomatic Valves
508 - Ductile iron body with epoxy coating. Standard corrosion resistant phenolic “Sinking Ball ”, with resilient seat, and two bolt access cover. Also available with special “Floating Ball ” for flood control or air vent application –consult factory for application and... [See More]
- Media: Air
- Material Of Construction: Ductile Iron
- Valve Type: BallDisk
- Valve Size: 1.00 to 4.00
from Victaulic Co. of America
SPRING OPERATED TYPE. 10 INCH NOMINAL SIZE. 10 NOMINAL SIZE - DECIMAL. 10 NOMINAL SIZE - FRACTIONAL. ANSI/NSF 61, UL APPLICABLE STANDARD. ACID, AIR, WATER APPLICATION. -30 TO 230 DEG F TEMPERATURE RATING. END SEAL EPDM GASKET, HORIZONTAL/VERTICAL INSTALLATION INCLUSIONS/FEATURES. CARBON STEEL BODY... [See More]
- Media: Air; Water
- Maximum Pressure: 300.00
- Material Of Construction: Steel
- Media Temperature: -30 to 230
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]
- Media: Hydraulic; Air; Water; Hot Water; Cold 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
- Material Of Construction: Aluminum (optional feature); Brass / Bronze; Stainless Steel; Steel; Exotic Metal; FEP Encapsulator; PVC; PTFE
- Valve Type: Lift Check; Poppet; Back Flow
- Valve Size: 0.50
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Nylon
- Valve Type: BallDisk
- Valve Size: 0.12 to 0.19
from Mueller Steam Specialty
Designed for liquids and gases where flow reversal can cause surge and water hammer. Used extensively in pump suction and discharge applications. [See More]
- Media: Hydraulic (optional feature); Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater (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)
- Material Of Construction: Carbon Steel
- Valve Type: BallDisk
- Valve Size: 2.00 to 30.00
from Quarktwin Technology Ltd.
Non-Return Valve (Check Valve) Sub-Base Mount [See More]
- Media: Air; Air, Inert Gas, Liquid
- Maximum Pressure: 7.00 to 145.00
- Connection Description: Threaded; Threaded
- Media Temperature: 14 to 140
from Spirax-Sarco
A range of carbon steel split disc check valves in a wafer pattern suitable for fitting between ASME (ANSI) Class 150 and Class 300, JIS / KS 10K and 20K flanges. Their function is to prevent reverse flow on a wide variety of fluids for applications in process lines, hot water systems, steam and... [See More]
- Media: Air; Water; Steam
- Material Of Construction: Steel
- Valve Type: Wafer
- Valve Size: 1.97 to 11.81
from Qosina Corp.
Qosina offers an extensive line of Check Valves available in a variety of styles that are in stock and ready for immediate delivery. Made of SAN, MABS, and silicone, Qosina part # 80507 features a low, 0.087 psi cracking pressure ideal for infusion, drainage and irrigation applications. This barbed... [See More]
- Media: Air; Water
- Maximum Pressure: 0.09
- Material Of Construction: SAN, MABS, Silicone
from DK-LOK U.S.A.
Up to 3000psig (206bar). Up to 190 ℃ (375 ℉). ss316, Brass. O-ring seal blow-out proof design. Pipe thread 1/4 - 1/2 inch [See More]
- Media: Air; Compressed Air; Water; Gas
- Material Of Construction: Brass / Bronze; Stainless Steel; Viton, NBR, (optional EPDM, Kalrez); PTFE (optional feature); Rubber
- Valve Type: Lift Check
- Connection Description: Threaded; 1/4" Male NPT
from FUJIKURA COMPOSITES Inc.
Features. Simple design makes low price. Damages to seal material were reduced by double-touch system (O-ring and metal-seal). Various port sizes and seal materials. Applications. Machine Tools ：Milling machine, NC lathe, laser processing machine etc. Industrial furnace ：General... [See More]
- Media: Air; Compressed Air; Water
- Valve Size: 0.12 to 1.00
- Material Of Construction: Brass / Bronze; Stainless Steel
- Connection Description: Threaded
from MAXPRO Technologies, Inc.
MAXIMATOR o-ring check valves provide high quality directional flow control and tight shutoff for liquids and gases. All check valves are supplied with glands and collars. These check valves are not to be used as a relief device. Materials. Body, cover, poppet, cover gland: 316 series stainless... [See More]
- Media: Air; Compressed Air; Gas
- Connection Description: Tube Fitting
- Material Of Construction: Stainless Steel
- Maximum Pressure: 21000.00
from Flomatic Valves
508S6 - All 316 Stainless steel body. Standard corrosion resistant phenolic “Sinking Ball ”, with resilient seat, and two bolt access cover. Also available with special “Floating Ball ” for flood control or air vent application – consult factory for application and... [See More]
- Media: Air
- Material Of Construction: Stainless Steel
- Valve Type: BallDisk
- Valve Size: 1.25 to 2.00
from Victaulic Co. of America
SPRING OPERATED TYPE. 2-1/2 INCH NOMINAL SIZE. 2.5 NOMINAL SIZE - DECIMAL. 2-1/2 NOMINAL SIZE - FRACTIONAL. ANSI/NSF 61, UL APPLICABLE STANDARD. ACID, AIR, WATER APPLICATION. -30 TO 230 DEG F TEMPERATURE RATING. END SEAL EPDM GASKET, HORIZONTAL/VERTICAL INSTALLATION INCLUSIONS/FEATURES. CARBON STEEL... [See More]
- Media: Air; Water
- Valve Size: 2.50
- Material Of Construction: Steel
- Maximum Pressure: 300.00
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]
- Media: Hydraulic; Air; Water; Hot Water; Cold 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
- Material Of Construction: Brass / Bronze; Stainless Steel; Steel
- Valve Type: Lift Check; Poppet; Back Flow
- Valve Size: 1.00
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Kynar®
- Valve Type: BallDisk
- Valve Size: 0.12 to 0.19
from Mueller Steam Specialty
Designed for liquids and gases where flow reversal can cause surge and water hammer. Used extensively in pump suction and discharge applications. [See More]
- Media: Hydraulic (optional feature); Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater (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)
- Material Of Construction: Carbon Steel
- Valve Type: Wafer
- Valve Size: 1.00 to 10.00
from Quarktwin Technology Ltd.
Non-Return Valve (Check Valve) Sub-Base Mount [See More]
- Media: Air; Air, Inert Gas, Liquid
- Maximum Pressure: 7.00 to 145.00
- Connection Description: Threaded; Threaded
- Media Temperature: 14 to 140
from Spirax-Sarco
A range of carbon steel split disc check valves in a wafer pattern suitable for fitting between PN16 and PN40 flanges. Their function is to prevent reverse flow on a wide variety of fluids for applications in process lines, hot water systems, steam and condensate systems. The face-to-face dimension... [See More]
- Media: Air; Water; Steam
- Material Of Construction: Steel
- Valve Type: Wafer
- Valve Size: 1.97 to 11.81
from Qosina Corp.
Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Qosina part #80130 features a blue tubing port inlet and clear tubing port outlet that fits 0.122 inch ID x 0.165 inch OD tubing. Made of polycarbonate and silicone,... [See More]
- Media: Air; Water
- Maximum Pressure: 0.01 to 0.09
- Material Of Construction: PC, Silicone
from FUJIKURA COMPOSITES Inc.
Features. New design ‘ ’Full bore ’ ’ correspond high flow rate. Designed to reduce damages for seal material. Various port sizes and seal materials. Installation direction is free. Applications. Machine Tools ：Milling machine, NC lathe, laser processing machine etc. [See More]
- Media: Air; Compressed Air; Water
- Valve Size: 0.12 to 1.00
- Material Of Construction: Brass / Bronze; Stainless Steel
- Connection Description: Threaded
from Victaulic Co. of America
SPRING OPERATED TYPE. 2-1/2 INCH NOMINAL SIZE. 2.5 NOMINAL SIZE - DECIMAL. 2-1/2 NOMINAL SIZE - FRACTIONAL. ANSI/NSF 61, UL, ULC APPLICABLE STANDARD. ACID, AIR, FIRE PROTECTION, WATER APPLICATION. -30 TO 230 DEG F TEMPERATURE RATING. END SEAL EPDM GASKET, HORIZONTAL/VERTICAL INSTALLATION... [See More]
- Media: Air; Water
- Valve Size: 2.50
- Material Of Construction: Steel
- Maximum Pressure: 250.00
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]
- Media: Hydraulic; Air; Water; Hot Water; Cold 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
- Material Of Construction: Steel; FEP Encapsulator
- Valve Type: Lift Check; Poppet; Back Flow
- Valve Size: 1.00
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: PP
- Valve Type: BallDisk
- Valve Size: 0.12 to 0.19
from Mueller Steam Specialty
Designed for liquids and gases where flow reversal can cause surge and water hammer. Used extensively in pump suction and discharge applications. [See More]
- Media: Hydraulic (optional feature); Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater (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)
- Material Of Construction: Brass / Bronze
- Valve Type: BallDisk
- Valve Size: 2.00 to 30.00
from Quarktwin Technology Ltd.
Non-Return Valve (Check Valve) Sub-Base Mount [See More]
- Media: Air; Air, Inert Gas, Liquid
- Maximum Pressure: 7.00 to 145.00
- Connection Description: Threaded; Threaded
- Media Temperature: 14 to 140
from Spirax-Sarco
The Spirax Sarco vacuum breaker range will protect your plant and process equipment against vacuum, and at the same time allow condensate to drain effectively from pipework and storage vessels. [See More]
- Media: Air; Water; Gas; Steam
- Material Of Construction: Brass / Bronze
- Valve Type: BallDisk
- Valve Size: 0.12 to 0.50
from Qosina Corp.
Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Qosina part # 80184 features a blue male luer slip inlet and clear male luer slip outlet. Made of ABS and silicone, this in-line valve and has a low, 0.27 psi... [See More]
- Media: Air; Water
- Maximum Pressure: 0.27
- Material Of Construction: ABS, Silicone
from FUJIKURA COMPOSITES Inc.
Features. High pressure range.(SUS316 can use 13MPa [1885.49psi]). Damages to seal material were reduced by double-touch system (O-ring and metal-seal). All metal material adopt SUS316. Applications. Machine Tools ：Milling machine, NC lathe, laser processing machine etc. Industrial furnace... [See More]
- Media: Air; Compressed Air; Water
- Valve Size: 0.25 to 0.50
- Material Of Construction: Brass / Bronze; Stainless Steel
- Connection Description: Threaded
from Victaulic Co. of America
SPRING OPERATED TYPE. 4 INCH NOMINAL SIZE. 4 NOMINAL SIZE - DECIMAL. 4 NOMINAL SIZE - FRACTIONAL. ANSI/NSF 61, FM, UL, ULC APPLICABLE STANDARD. ACID, AIR, FIRE PROTECTION, WATER APPLICATION. -30 TO 230 DEG F TEMPERATURE RATING. END SEAL EPDM GASKET, HORIZONTAL/VERTICAL INSTALLATION... [See More]
- Media: Air; Water
- Maximum Pressure: 250.00
- Material Of Construction: Steel
- Media Temperature: -30 to 230
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]
- Media: Hydraulic; Air; Water; Hot Water; Cold 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
- Material Of Construction: Exotic Metal; FEP Encapsulator; PTFE
- Valve Type: Lift Check; Poppet; Back Flow
- Valve Size: 1.00
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Polycarbonate
- Valve Type: BallDisk
- Valve Size: 0.12 to 0.25
from Mueller Steam Specialty
Designed for liquids and gases where flow reversal can cause surge and water hammer. Used extensively in pump suction and discharge. [See More]
- Media: Hydraulic (optional feature); Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater (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)
- Material Of Construction: Cast Iron
- Valve Type: BallDisk
- Valve Size: 2.00 to 30.00
from Quarktwin Technology Ltd.
Non-Return Valve (Check Valve) Sub-Base Mount [See More]
- Media: Air; Air, Inert Gas, Liquid
- Maximum Pressure: 7.00 to 145.00
- Connection Description: Threaded; Threaded
- Media Temperature: 14 to 140
from Spirax-Sarco
WCV1, WCV2 and WCV3 wafer check valves are designed to be sandwiched between flanges.They are specifically designed for use on applications where there is a high proportion of particles in the liquid e.g. sewage, paper mills, sludges etc. The standard seating ring is EPDM. [See More]
- Media: Air; Water; Steam
- Material Of Construction: Brass / Bronze
- Valve Type: Wafer
- Valve Size: 4.92 to 19.69
from Qosina Corp.
Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Qosina part #80068 features a clear inlet and blue outlet that has a 0.124 inch OD on each end. Made of MABS and silicone, this in-line valve has a low, 0.142 psi... [See More]
- Media: Air; Water
- Maximum Pressure: 0.14
- Material Of Construction: MABS, Silicone
from FUJIKURA COMPOSITES Inc.
Features. Compact (OD φ18mm[0.71inch]), Light weight (33g[0.07pound]). Cracking pressure is extremely low: 1 kPa[0.15psi] or less. Leakage is minute: 1 ml / min or less at 10 kPa[1.45psi]. Applications. Machine Tools ：Milling machine, NC lathe, laser processing machine etc. Industrial... [See More]
- Media: Air; Compressed Air; Water
- Connection Description: Tube Fitting
- Material Of Construction: Polyacetal
- Maximum Pressure: 36.26
from Victaulic Co. of America
4 INCH NOMINAL SIZE. 4 NOMINAL SIZE - DECIMAL. 4 NOMINAL SIZE - FRACTIONAL. ANSI/NSF 61, FM, UL, ULC APPLICABLE STANDARD. ACID, AIR, FIRE PROTECTION, WATER APPLICATION. -30 TO 230 DEG F TEMPERATURE RATING. END SEAL EPDM GASKET, HORIZONTAL/VERTICAL INSTALLATION INCLUSIONS/FEATURES. CARBON STEEL BODY... [See More]
- Media: Air; Water
- Maximum Pressure: 250.00
- Material Of Construction: Steel
- Media Temperature: -30 to 230
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]
- Media: Hydraulic; Air; Water; Hot Water; Cold 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
- Material Of Construction: Brass / Bronze; Stainless Steel; Steel; Exotic Metal; Titanium
- Valve Type: Lift Check; Poppet; Back Flow
- Valve Size: 0.12
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Nylon
- Valve Type: BallDisk
- Valve Size: 0.12 to 0.25
from Mueller Steam Specialty
Designed for liquids and gases where flow reversal can cause surge and water hammer. Elastomer seats provide bubble-tight shutoff. [See More]
- Media: Hydraulic (optional feature); Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater (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)
- Material Of Construction: Cast Iron
- Valve Type: Wafer
- Valve Size: 2.00 to 54.00
from Quarktwin Technology Ltd.
Non-Return Valve (Check Valve) Sub-Base Mount [See More]
- Media: Air; Air, Inert Gas, Liquid
- Maximum Pressure: 7.00 to 145.00
- Connection Description: Threaded; Threaded
- Media Temperature: 14 to 140
from Spirax-Sarco
WCV1, WCV2 and WCV3 wafer check valves are designed to be sandwiched between flanges.They are specifically designed for use on applications where there is a high proportion of particles in the liquid e.g. sewage, paper mills, sludges etc. The standard seating ring is EPDM. [See More]
- Media: Air; Water; Steam
- Material Of Construction: Stainless Steel
- Valve Type: Wafer
- Valve Size: 4.92 to 19.69
from Qosina Corp.
Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Qosina part # 80393 features a clear, 0.138 inch OD tubing port inlet and a blue, 0.138 inch OD tubing port outlet. Made of polycarbonate and silicone, this in-line... [See More]
- Media: Air; Water
- Maximum Pressure: 45.00
- Material Of Construction: PC, Silicone
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]
- Media: Air; Water; Hot Water; Cold 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
- Material Of Construction: Stainless Steel
- Valve Type: Cartridge; Lift Check; Poppet; Back Flow
- Valve Size: 0.75
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Polycarbonate
- Valve Type: BallDisk
- Valve Size: 0.12 to 0.25
from Mueller Steam Specialty
Can be used in a variety of applications including: chilled and hot water systems, refrigeration, plumbing, air conditioning, gas and liquid applications, water filtration, oxygen systems, boiler feed lines, centrifugal pump and compressor systems and process applications. [See More]
- Media: Hydraulic; Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Process Industries, Construction
- Material Of Construction: Aluminum (optional feature); Brass / Bronze (optional feature); Stainless Steel (optional feature)
- Valve Type: BallDisk
- Valve Size: 2.00 to 36.00
from Quarktwin Technology Ltd.
Non-Return Valve (Check Valve) Sub-Base Mount [See More]
- Media: Air; Air, Inert Gas, Liquid
- Maximum Pressure: 7.00 to 145.00
- Connection Description: Threaded; Threaded
- Media Temperature: 14 to 140
from Spirax-Sarco
WCV1, WCV2 and WCV3 wafer check valves are designed to be sandwiched between flanges.They are specifically designed for use on applications where there is a high proportion of particles in the liquid e.g. sewage, paper mills, sludges etc. The standard seating ring is EPDM. [See More]
- Media: Air; Water; Steam
- Material Of Construction: Stainless Steel
- Valve Type: Wafer
- Valve Size: 4.92 to 19.69
from Qosina Corp.
Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Qosina part #80473 features a clear 0.13 inch OD tubing port inlet and a blue 0.13 inch OD tubing port outlet. Made of polycarbonate and silicone, this in-line valve... [See More]
- Media: Air; Water
- Maximum Pressure: 0.43
- Material Of Construction: PC, Silicone
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]
- Media: Air; Water; Hot Water; Cold 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
- Material Of Construction: FEP Encapsulator; PTFE
- Valve Type: Lift Check; Poppet; Back Flow
- Valve Size: 0.75
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Polycarbonate
- Valve Type: BallDisk
- Valve Size: 0.12 to 0.19
from Mueller Steam Specialty
Designed for liquids and gases where flow reversal can cause surge and water hammer. [See More]
- Media: Hydraulic (optional feature); Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater (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)
- Material Of Construction: Brass / Bronze (optional feature); Cast Iron (optional feature)
- Valve Type: Wafer
- Valve Size: 1.50 to 12.00
from Quarktwin Technology Ltd.
Non-Return Valve (Check Valve) Sub-Base Mount [See More]
- Media: Air; Air, Inert Gas, Liquid
- Maximum Pressure: 7.00 to 145.00
- Connection Description: Threaded; Threaded
- Media Temperature: 14 to 140
from Qosina Corp.
Qosina offers an extensive line of Check Valves available in a variety of styles that are in stock and ready for immediate delivery. Made of SAN, MABS, and silicone, Qosina part # 80504 features a low, 0.087 psi cracking pressure ideal for infusion, drainage and irrigation applications. This barbed... [See More]
- Media: Air; Water
- Maximum Pressure: 0.09
- Material Of Construction: SAN, MABS, Silicone
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]
- Media: Air; Water; Hot Water; Cold 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
- Material Of Construction: Stainless Steel
- Valve Type: Lift Check; Poppet; Back Flow
- Valve Size: 1.00
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Polycarbonate
- Valve Type: BallDisk
- Valve Size: 0.12
from Mueller Steam Specialty
Designed for liquids and gases where flow reversal can cause surge and water hammer. [See More]
- Media: Hydraulic (optional feature); Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater (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)
- Material Of Construction: Brass / Bronze (optional feature); Cast Iron (optional feature)
- Valve Type: Wafer
- Valve Size: 1.50 to 12.00
from Quarktwin Technology Ltd.
Non-Return Valve (Check Valve) Sub-Base Mount [See More]
- Media: Air; Air, Inert Gas, Liquid
- Maximum Pressure: 7.00 to 145.00
- Connection Description: Threaded; Threaded
- Media Temperature: 14 to 140
from Qosina Corp.
Qosina offers an extensive line of Check Valves available in a variety of styles that are in stock and ready for immediate delivery. Made of SAN, MABS, and silicone, Qosina part # 80505 features a low, 0.087 psi cracking pressure ideal for infusion, drainage and irrigation applications. This barbed... [See More]
- Media: Air; Water
- Maximum Pressure: 0.09
- Material Of Construction: SAN, MABS, Silicone
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]
- Media: Hydraulic; Air; Water; Hot Water; Cold 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
- Material Of Construction: Brass / Bronze; Stainless Steel; Steel; Exotic Metal; Alloy 20, Alloy C-276,, Titanium
- Valve Type: Lift Check; Poppet; Back Flow
- Valve Size: 0.50
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Kynar®
- Valve Type: Duckbill
- Valve Size: 0.12 to 0.19
from Mueller Steam Specialty
Can be used in a variety of applications including: chilled and hot water systems, refrigeration, plumbing, air conditioning, gas and liquid applications, water filtration, oxygen systems, boiler feed lines, and centrifugal pump and compressor systems. [See More]
- Media: Hydraulic (optional feature); Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater (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); Refrigeration, Plumbing
- Material Of Construction: Cast Iron
- Valve Type: BallDisk
- Valve Size: 2.00 to 36.00
from Quarktwin Technology Ltd.
Non-Return Valve (Check Valve) Sub-Base Mount [See More]
- Media: Air; Air, Inert Gas, Liquid
- Maximum Pressure: 7.00 to 145.00
- Connection Description: Threaded; Threaded
- Media Temperature: 14 to 140
from Qosina Corp.
Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Made of polycarbonate and silicone, this valve is lipid resistant, and displays stress-crack resistance when it makes contact with lipid emulsions. Qosina part #... [See More]
- Media: Air; Water
- Maximum Pressure: 0.22
- Material Of Construction: PC, Silicone
from Check-All Valve Mfg. Co.
The Tubing Check Valve-Flared is a three piece constructed valve with 37 º flared ends which conform to J. I. C. and S. A. E. Hydraulic Standards. These valves are designed for maximum flow with minimal pressure drop. Available Materials: 316 Stainless Steel (SS). Brass (BR). Carbon Steel (CS) [See More]
- Media: Hydraulic; Air; Water; Hot Water; Cold 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
- Material Of Construction: Brass / Bronze; Stainless Steel; Steel; Exotic Metal; Titanium
- Valve Type: Lift Check; Poppet; Back Flow
- Valve Size: 0.25
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Kynar®
- Valve Type: Duckbill
- Valve Size: 0.12 to 0.19
from Mueller Steam Specialty
Can be used in a variety of applications including: chilled and hot water systems, refrigeration, plumbing, air conditioning, gas and liquid applications, water filtration, oxygen systems, boiler feed lines, and centrifugal pump and compressor systems. [See More]
- Media: Hydraulic (optional feature); Air; Compressed Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater (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); Refrigeration, Plumbing
- Material Of Construction: Cast Iron
- Valve Type: BallDisk
- Valve Size: 2.00 to 24.00
from Quarktwin Technology Ltd.
Non-Return Valve (Check Valve) Sub-Base Mount [See More]
- Media: Air; Air, Inert Gas, Liquid
- Maximum Pressure: 7.00 to 145.00
- Connection Description: Threaded; Threaded M5
- Media Temperature: 14 to 140
from Qosina Corp.
Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Qosina part #80107 features a female luer lock inlet and male luer lock outlet. Made of polycarbonate and silicone, this in-line valve is tinted for gamma... [See More]
- Media: Air; Water
- Maximum Pressure: 1.50 to 5.00
- Material Of Construction: PC, Silicone
from Check-All Valve Mfg. Co.
The Tubing Check Valve is a three piece constructed check valve with flareless tube ends. The valve is designed for minimum pressure drops. The valves are furnished complete with ferrules and nuts. Available Materials: 316 Stainless Steel (SS). Brass (BR). Carbon Steel (CS) [See More]
- Media: Hydraulic; Air; Water; Hot Water; Cold 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
- Material Of Construction: Brass / Bronze; Stainless Steel; Steel; Exotic Metal; Titanium
- Valve Type: Lift Check; Poppet; Back Flow
- Valve Size: 0.12
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Kynar®
- Valve Type: Duckbill
- Valve Size: 0.12
from Mueller Steam Specialty
Designed for liquids and gases where flow reversal can cause surge and water hammer. [See More]
- Media: Hydraulic (optional feature); Air; Water; Hot Water; Cold Water ; Potable Water; Salt Water; Wastewater (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)
- Material Of Construction: Stainless Steel (optional feature); Carbon Steel
- Valve Type: Wafer
- Valve Size: 2.00 to 12.00
from Quarktwin Technology Ltd.
Non-Return Valve (Check Valve) Sub-Base Mount [See More]
- Media: Air; Air, Inert Gas, Liquid
- Maximum Pressure: 7.00 to 145.00
- Connection Description: Threaded; Threaded M5
- Media Temperature: 14 to 140
from Qosina Corp.
Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Qosina part #80129 features a female luer lock inlet and male luer lock outlet. Made of polycarbonate and silicone, this in-line valve is tinted for gamma... [See More]
- Media: Air; Water
- Maximum Pressure: 0.00 to 10.00
- Material Of Construction: PC, Silicone
from Check-All Valve Mfg. Co.
The Union Insert Valve is the threaded pipe counterpart of the Flange Insert Valve. Designed to be inserted into most standard ground joint unions, it provides the simplest and most economical way to install a check valve in a threaded pipe system. A check valve may be installed anywhere in the... [See More]
- Media: Hydraulic; Air; Water; Hot Water; Cold 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
- Material Of Construction: Brass / Bronze; Stainless Steel; Steel; Exotic Metal; Alloy 20, Alloy C-276, Titanium
- Valve Type: Lift Check; Poppet; Back Flow
- Valve Size: 0.50
from ARKPLAS
All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]
- Media: Air; Compressed Air
- Material Of Construction: Polycarbonate
- Valve Type: BallDisk
- Valve Size: 0.12
from Qosina Corp.
Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Qosina part # 80136 features a female luer lock inlet and male luer lock outlet with a 4.2 psi cracking pressure. Made of polycarbonate and silicone, this in-line... [See More]
- Media: Air; Water
- Maximum Pressure: 4.20
- Material Of Construction: PC, Silicone