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About Backflow-Prevention Valves
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High-Cycling Check Valves
Unthreaded Male Inlet x Unthreaded Male Outlet
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.
Nylon Plastic Body
- 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 | |
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 | 00000 |
Polypropylene Plastic Body
- 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 | |
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 | 00000 |
| 1/8" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluorosilicone Rubber | Fluorosilicone Rubber | Black | 1 5/8" | 000000000 | 0000 |