Clear All
Body Material Body Material |
|---|
|
For Use With For Use With |
|---|
Connection Style Connection Style | Show |
|---|
 | Threaded Union |
Connection Style Connection Style | Hide |
|---|
 | Threaded |
 | Barbed |
 | Flanged |
 | Push to Connect |
 | Socket Connect |
| Threaded Union |
 | Yor-Lok |
 | Quick Clamp |
 | Solder Connect |
 | Quick Turn |
 | Clamp On |
 | Butt Weld |
 | Unthreaded |
Ball Material Ball Material |
|---|
|
Check Valve Type Check Valve Type |
|---|
|
Mounting Orientation Mounting Orientation |
|---|
|
Color Color |
|---|
 | White |
 | Dark Gray |
 | Light Gray |
Valve Type Valve Type |
|---|
|
Shape Shape |
|---|
 | Straight |
Valve Function Valve Function |
|---|
|
Gender Gender |
|---|
|
Connection Type Connection Type |
|---|
 | Pipe |
Maximum Temperature Maximum Temperature |
|---|
|
Minimum Temperature Minimum Temperature |
|---|
|
Fitting Type Fitting Type |
|---|
|
Maximum Pressure Maximum Pressure |
|---|
|
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
|---|
|
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
|---|
|
About Backflow-Prevention Valves
More
Easy-to-Install Threaded Check Valves for Harsh Chemicals
Assembled View
Exploded View
To reduce installation time and allow for maintenance without detaching pipe connections, these valves have union fittings. 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.
Valves for drinking water meet NSF/ANSI 61.
PVC and CPVC valves come with unthreaded socket-connect female fittings in addition to the threaded NPT female fittings.
Polypropylene valves are more corrosion resistant than PVC or CPVC 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.
PVC Plastic Body
- For Use With:
BSPP thread type:
Butane, Kerosene, Drinking Water, Liquid Carbon Dioxide, Natural Gas, Nitric Acid, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Water
NPT thread type:
Citric Acid, Diesel Fuel, Drinking Water, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite, Water - Ball Material: PVC Plastic
- Seal Material: Fluoroelastomer Rubber
| Pipe Size  | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Specifications Met | Each | |
BSPP Female × BSPP Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 6.3 | 150 psi @ 70° F | 1 | 40° to 140° | Dark Gray | 4 1/4" | ASTM D1784, NSF/ANSI 61 | 0000000 | 0000000 |
| 1 | 25 | 150 psi @ 70° F | 1 | 40° to 140° | Dark Gray | 5 3/16" | ASTM D1784, NSF/ANSI 61 | 0000000 | 000000 |
NPT Female × NPT Female | |||||||||
| 1/2 | 4.8 | 150 psi @ 70° F | 1 | 40° to 140° | Dark Gray | 4 11/16" | ASTM D1784, NSF/ANSI 61 | 0000000 | 00000 |
| 3/4 | 7.7 | 150 psi @ 70° F | 1 | 40° to 140° | Dark Gray | 4 3/4" | ASTM D1784, NSF/ANSI 61 | 0000000 | 00000 |
| 1 | 11 | 150 psi @ 70° F | 1 | 40° to 140° | Dark Gray | 5 3/8" | ASTM D1784, NSF/ANSI 61 | 0000000 | 00000 |
| 1 1/4 | 25 | 150 psi @ 70° F | 1 | 40° to 140° | Dark Gray | 6 1/4" | ASTM D1784, NSF/ANSI 61 | 0000000 | 000000 |
| 1 1/2 | 45 | 150 psi @ 70° F | 1 | 40° to 140° | Dark Gray | 6 3/4" | ASTM D1784, NSF/ANSI 61 | 0000000 | 000000 |
| 2 | 130 | 150 psi @ 70° F | 1 | 40° to 140° | Dark Gray | 8 1/8" | ASTM D1784, NSF/ANSI 61 | 0000000 | 000000 |
CPVC Plastic Body
- For Use With: Citric Acid, Diesel Fuel, Drinking Water, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Phosphoric Acid, Salt Water, Sodium Hypochlorite, Water
- Ball Material: CPVC Plastic
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Specifications Met | Each | |
NPT Female × NPT Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 4.8 | 150 psi @ 70° F | 1 | 35° to 190° | Light Gray | 4 11/16" | ASTM D1784, NSF/ANSI 61 | 0000000 | 000000 |
| 3/4 | 7.7 | 150 psi @ 70° F | 1 | 35° to 190° | Light Gray | 4 3/4" | ASTM D1784, NSF/ANSI 61 | 0000000 | 00000 |
| 1 | 11 | 150 psi @ 70° F | 1 | 35° to 190° | Light Gray | 5 3/8" | ASTM D1784, NSF/ANSI 61 | 0000000 | 000000 |
| 1 1/4 | 25 | 150 psi @ 70° F | 1 | 35° to 190° | Light Gray | 6 1/4" | ASTM D1784, NSF/ANSI 61 | 0000000 | 000000 |
| 1 1/2 | 45 | 150 psi @ 70° F | 1 | 35° to 190° | Light Gray | 6 3/4" | ASTM D1784, NSF/ANSI 61 | 0000000 | 000000 |
| 2 | 130 | 150 psi @ 70° F | 1 | 35° to 190° | Light Gray | 8 1/8" | ASTM D1784, NSF/ANSI 61 | 0000000 | 000000 |
Polypropylene Plastic Body
- For Use With: Citric Acid, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Nitric Acid, Phosphoric Acid, Salt Water, Sodium Hypochlorite, Water
- Ball Material: Polypropylene Plastic
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Specifications Met | Each | |
NPT Female × NPT Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 4.8 | 150 psi @ 70° F | 1 | 35° to 160° | White | 4 11/16" | ASTM D4101 | 0000000 | 0000000 |
| 3/4 | 7.7 | 150 psi @ 70° F | 1 | 35° to 160° | White | 4 3/4" | ASTM D4101 | 0000000 | 000000 |
| 1 | 11 | 150 psi @ 70° F | 1 | 35° to 160° | White | 5 3/8" | ASTM D4101 | 0000000 | 000000 |
| 1 1/2 | 45 | 150 psi @ 70° F | 1 | 35° to 160° | White | 6 3/4" | ASTM D4101 | 0000000 | 000000 |
| 2 | 130 | 150 psi @ 70° F | 1 | 35° to 160° | White | 8 1/8" | ASTM D4101 | 0000000 | 000000 |