For Use With For Use With |
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Connection Style Connection Style |
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| Barbed | Unthreaded |
System of Measurement System of Measurement |
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Connection Type Connection Type |
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 | Tube |
Check Valve Type Check Valve Type |
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Body Material Body Material |
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Maximum Temperature Maximum Temperature |
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Valve Type Valve Type |
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Maximum Pressure Maximum Pressure |
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Barbed Connection Type Barbed Connection Type |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Shape Shape |
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 | Straight |
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Valve Function Valve Function |
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Mounting Orientation Mounting Orientation |
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Gender Gender |
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Minimum Temperature Minimum Temperature |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Actuation Actuation |
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About Backflow-Prevention Valves
More
Check Valves with Barbed Fittings
Barbs grip onto tubing, providing a secure hold. These valves open to allow flow in one direction and close when flow stops or reverses.
Nylon valves are more impact resistant than PVC or polypropylene valves.
Polypropylene valves are more corrosion resistant than PVC or nylon valves.
Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Argon, Helium, Krypton, Neon, Water, Xenon
- Ball Material: 316 Stainless Steel
- Spring Material: 302 Stainless Steel
- Seal Material: Buna-N Rubber
| For Inlet Tube ID | For Outlet Tube ID | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
Barbed Male Inlet × Barbed Male Outlet | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/8" | 1/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 2 5/8" | 0000000 | 000000 |
| 1/8" | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/16" | 0000000 | 00000 |
| 1/4" | 1/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/16" | 0000000 | 00000 |
| 1/4" | 1/4" | 0.5 | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/2" | 0000000 | 00000 |
| 5/16" | 5/16" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/2" | 0000000 | 00000 |
| 3/8" | 3/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/2" | 0000000 | 00000 |
| 3/8" | 1/2" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/2" | 0000000 | 00000 |
| 1/2" | 1/2" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/2" | 0000000 | 00000 |
- For Use With: Air, Argon, Helium, Krypton, Neon, Water, Xenon
- Ball Material: 316 Stainless Steel
- Spring Material: 302 Stainless Steel
- Seal Material: Buna-N Rubber
| For Inlet Tube ID | For Outlet Tube ID | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
Barbed Male Inlet × Barbed Male Outlet | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/8" | 1/8" | 0.1 | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 3/8" | 0000000 | 00000 |
| 1/8" | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 11/16" | 0000000 | 0000 |
| 3/16" | 1/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 9/16" | 0000000 | 0000 |
| 3/16" | 3/16" | 0.2 | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 3/4" | 0000000 | 0000 |
| 1/4" | 1/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 11/16" | 0000000 | 0000 |
| 1/4" | 1/4" | 0.3 | 125 psi @ 70° F | 1 | 35° to 140° | White | 2 1/16" | 0000000 | 0000 |
| 5/16" | 5/16" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 1/2" | 0000000 | 00000 |
| 3/8" | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 1/2" | 0000000 | 00000 |
| 3/8" | 3/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 1/2" | 0000000 | 00000 |
| 1/2" | 1/2" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 1/8" | 0000000 | 00000 |
- For Use With: Air, Argon, Helium, Krypton, Neon, Water, Xenon
- Ball Material: 316 Stainless Steel
- Spring Material: 302 Stainless Steel
- Seal Material: Buna-N Rubber
| For Inlet Tube ID | For Outlet Tube ID | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
Barbed Male Inlet × Barbed Male Outlet | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/8" | 1/8" | 0.1 | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 3/8" | 0000000 | 00000 |
| 1/8" | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 11/16" | 0000000 | 0000 |
| 3/16" | 3/16" | 0.2 | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 3/4" | 0000000 | 0000 |
| 3/16" | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 7/8" | 0000000 | 0000 |
| 1/4" | 1/4" | 0.3 | 125 psi @ 70° F | 1 | 35° to 140° | White | 2 1/16" | 0000000 | 0000 |
| 5/16" | 5/16" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 1/2" | 0000000 | 00000 |
| 3/8" | 3/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 1/2" | 0000000 | 00000 |
| 1/2" | 1/2" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 1/2" | 0000000 | 00000 |
High-Cycling Check Valves
With internal components that resist wear from frequent operation, these valves can cycle as often as once per second. Barbed fittings and unthreaded fittings grip onto tubing, providing a secure hold. All valves open to allow flow in one direction and close when flow stops or reverses.
Nylon valves are more impact resistant than polypropylene valves.
Polypropylene valves are more corrosion resistant than nylon valves.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Water
- Diaphragm Material: See table
- Seal Material: See table
| For Tube ID | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Diaphragm Material | Seal Material | Color | End-to-End Lg. | Each | |
Barbed Male Inlet × Barbed Male Outlet | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 3/16" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | Black | 1 11/16" | 00000000 | 00000 |
| 3/16" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluorosilicone Rubber | Fluorosilicone Rubber | Black | 1 11/16" | 00000000 | 0000 |
| 1/4" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluorosilicone Rubber | Fluorosilicone Rubber | Black | 1 9/16" | 00000000 | 0000 |
| 5/16" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluorosilicone Rubber | Fluorosilicone Rubber | Black | 1 9/16" | 00000000 | 0000 |
Unthreaded Male Inlet × Unthreaded Male Outlet | |||||||||
| 1/8" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluorosilicone Rubber | Fluorosilicone Rubber | Black | 1 5/8" | 00000000 | 0000 |
- For Use With: Air, Water
- Diaphragm Material: See table
- Seal Material: See table
| For Tube ID | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Diaphragm Material | Seal Material | Color | End-to-End Lg. | Each | |
Barbed Male Inlet × Barbed Male Outlet | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 3/16" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | White | 1 11/16" | 00000000 | 00000 |
| 1/4" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | Black | 1 9/16" | 00000000 | 0000 |
| 5/16" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | Black | 1 3/4" | 00000000 | 0000 |
Unthreaded Male Inlet × Unthreaded Male Outlet | |||||||||
| 1/8" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | White | 1 5/8" | 00000000 | 0000 |
Check Valves with Barbed Fittings for Harsh Chemicals
Prevent backflow in chemical tubing lines. These valves have barbed fittings that grip onto tubing, providing a secure hold. The plastic body and fluoroelastomer seal provide excellent chemical resistance. Valves open to allow flow in one direction and close when flow stops or reverses.
PVDF valve resists abrasion and UV light.
Polypropylene valves are more corrosion resistant than nylon valves.
Nylon valves are more impact resistant than polypropylene valves.
Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Butane, Chlorine, Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Gasoline, Hydrochloric Acid, Nitric Acid, Oil, Propane, Salt Water, Soap Solutions, Sodium Hypochlorite, Sulfuric Acid, Water
- Diaphragm Material: Fluoroelastomer Rubber
- Seal Material: Fluoroelastomer Rubber
| For Tube ID | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
Barbed × Barbed | |||||||
|---|---|---|---|---|---|---|---|
| 1/4" | 15 psi @ 70° F | 0.5 | -20° to 250° | White | 1 21/32" | 00000000 | 00000 |
- For Use With: Acetone, Air, Argon, Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Fuel Oil, Gasoline, Helium, Kerosene, Krypton, Mineral Spirits, Neon, Nitrogen, Oil, Propane, Salt Water, Soap Solutions, Toluene, Water, Xenon, Xylene
- Ball Material: 316 Stainless Steel
- Spring Material: 302 Stainless Steel
- Seal Material: Fluoroelastomer Rubber
- For Use With: Acetone, Air, Argon, Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Fuel Oil, Gasoline, Helium, Kerosene, Krypton, Mineral Spirits, Neon, Nitrogen, Oil, Propane, Salt Water, Soap Solutions, Toluene, Water, Xenon, Xylene
- Ball Material: 316 Stainless Steel
- Spring Material: 302 Stainless Steel
- Seal Material: Fluoroelastomer Rubber
Check Valves with Barbed Fittings for Vacuum
- For Use With: Air, Water
- Disc Material: Neoprene Rubber
- Seal Material: Polyethylene Plastic
Barbs grip onto tubing, providing a secure hold to prevent vacuum loss in tubing lines. These valves open to allow flow in one direction and close when flow stops or reverses.
For technical drawings and 3-D models, click on a part number.