For Use With For Use With |
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Mounting Orientation Mounting Orientation |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Backflow-Prevention Valves
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Ultra-Chemical-Resistant Threaded Check Valves
Female × Female
Female × Male
Male × Female
Male × Male
- For Use With: Acetone, Ammonia, Butane, Carbon Dioxide, Citric Acid, Diesel Fuel, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Methanol, Methyl Ethyl Ketone, Mineral Spirits, Natural Gas, Nitric Acid, Nitrogen, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hydroxide, Sodium Hypochlorite, Steam, Sulfuric Acid, Toluene, Water, Xylene
- Piston Material: PTFE Plastic
- Spring Material: PTFE Plastic
The most chemical-resistant check valves in our offering, these have a PFA body to withstand methyl ethyl ketone, sodium hypochlorite, and other extremely harsh chemicals. They open to allow flow in one direction and close when flow stops or reverses.
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.
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
PFA Plastic Body | ||||||||
|---|---|---|---|---|---|---|---|---|
NPT Female × NPT Female  | ||||||||
| 1/4 | 0.75 | 100 psi @ 150° F | 1 | 0° to 200° | White | 2 3/8" | 00000000 | 0000000 |
| 1/2 | 4 | 100 psi @ 150° F | 1 | 0° to 200° | White | 3 3/8" | 00000000 | 000000 |
NPT Female × NPT Male | ||||||||
| 1/4 | 0.75 | 100 psi @ 150° F | 1 | 0° to 200° | White | 2 7/16" | 00000000 | 000000 |
NPT Male × NPT Female | ||||||||
| 1/4 | 0.75 | 100 psi @ 150° F | 1 | 0° to 200° | White | 2 1/16" | 00000000 | 000000 |
NPT Male × NPT Male | ||||||||
| 1/4 | 0.75 | 100 psi @ 150° F | 1 | 0° to 200° | White | 2 7/16" | 00000000 | 000000 |