For Use With For Use With | Show |
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For Use With For Use With | Hide |
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Connection Style Connection Style |
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 | Threaded |
 | Barbed |
 | Flanged |
 | Push to Connect |
 | Socket Connect |
Body Material Body Material |
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Check Valve Type Check Valve Type |
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Valve Type Valve Type |
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Shape Shape |
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 | Straight |
Maximum Pressure Maximum Pressure |
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Mounting Orientation Mounting Orientation |
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Actuation Actuation |
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Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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Valve Function Valve Function |
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Flow Coefficient (Cv) Flow Coefficient (Cv) |
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About Backflow-Prevention Valves
More
Threaded Check Valves for Harsh Chemicals
These valves open to allow flow in one direction and close when flow stops or reverses.
Valves for drinking water meet NSF/ANSI Standard 61.
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.
- For Use With: Air, Ammonia, Butane, Carbon Dioxide, Chlorine, Citric Acid, Deionized Water, Diesel Fuel, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Natural Gas, Nitric Acid, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Sodium Hydroxide, Toluene, Water, Xylene
- Ball Material: 316 Stainless Steel
- Spring Material: 316 Stainless Steel
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
NPT Male × NPT Male | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/8 | Not Rated | 220 psi @ 70° F | 2.5 | 40° to 180° | White | 1" | 00000000 | 000000 |
| 1/4 | Not Rated | 220 psi @ 70° F | 2.5 | 40° to 180° | White | 1 7/16" | 00000000 | 00000 |
| 3/8 | Not Rated | 220 psi @ 70° F | 2.5 | 40° to 180° | White | 1 1/2" | 00000000 | 00000 |
| 1/2 | Not Rated | 220 psi @ 70° F | 2.5 | 40° to 180° | White | 1 13/16" | 00000000 | 00000 |
- For Use With: Air, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Diesel Fuel, Drinking Water, Ethanol, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Methanol, Mineral Spirits, Natural Gas, Oil, Oxygen, Phosphoric Acid, Potable Water, Propane, Salt Water, Soap Solutions, Sodium Hydroxide, Sodium Hypochlorite, Water
- Ball Material: PVC Plastic
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | DIN Size, mm | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
NPT Female × NPT Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/4 | __ | 1 | 150 psi @ 70° F | 1.5 | 35° to 140° | Dark Gray | 3" | 0000000 | 000000 |
| 3/8 | __ | 3 | 150 psi @ 70° F | 1.5 | 35° to 140° | Dark Gray | 3" | 0000000 | 00000 |
| 2 1/2 | __ | 170 | 150 psi @ 70° F | 1.5 | 35° to 140° | Dark Gray | 10 11/16" | 0000000 | 000000 |
| 3 | __ | 250 | 150 psi @ 70° F | 1.5 | 35° to 140° | Dark Gray | 10 9/16" | 0000000 | 000000 |
| 4 | __ | 400 | 150 psi @ 70° F | 1.5 | 35° to 140° | Dark Gray | 12 15/16" | 0000000 | 000000 |
Metric Female × Metric Female | |||||||||
| __ | 65 | 170 | 150 psi @ 70° F | 1.5 | 35° to 140° | Dark Gray | 271mm | 0000000 | 000000 |
| __ | 80 | 250 | 150 psi @ 70° F | 1.5 | 35° to 140° | Dark Gray | 268mm | 0000000 | 000000 |
| __ | 100 | 400 | 150 psi @ 70° F | 1.5 | 35° to 140° | Dark Gray | 329mm | 0000000 | 000000 |
- For Use With: Air, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Diesel Fuel, Drinking Water, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Natural Gas, Nitric Acid, Oxygen, Phosphoric Acid, Potable Water, Propane, Salt Water, Soap Solutions, Sodium Hydroxide, Sodium Hypochlorite, Sulfuric Acid, Water
- Ball Material: CPVC Plastic
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | DIN Size, mm | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
NPT Female × NPT Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 2 1/2 | __ | 170 | 150 psi @ 70° F | 1.5 | 35° to 190° | Dark Gray | 10 11/16" | 0000000 | 0000000 |
| 3 | __ | 250 | 150 psi @ 70° F | 1.5 | 35° to 190° | Dark Gray | 10 9/16" | 0000000 | 000000 |
| 4 | __ | 400 | 150 psi @ 70° F | 1.5 | 35° to 190° | Dark Gray | 12 15/16" | 0000000 | 000000 |
Metric Female × Metric Female | |||||||||
| __ | 65 | 170 | 150 psi @ 70° F | 1.5 | 35° to 190° | Dark Gray | 271mm | 0000000 | 000000 |
| __ | 80 | 250 | 150 psi @ 70° F | 1.5 | 35° to 190° | Dark Gray | 268mm | 0000000 | 000000 |
| __ | 100 | 400 | 150 psi @ 70° F | 1.5 | 35° to 190° | Dark Gray | 329mm | 0000000 | 000000 |
- For Use With: Air, Ammonia, Butane, Carbon Dioxide, Citric Acid, Deionized Water, Drinking Water, Ethanol, Ethylene Glycol, Isopropyl Alcohol, Kerosene, Methanol, Natural Gas, Oil, Oxygen, Phosphoric Acid, Potable Water, Salt Water, Soap Solutions, Sodium Hydroxide, Water
- Ball Material: Polypropylene Plastic
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | DIN Size, mm | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
NPT Female × NPT Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | __ | 4.8 | 150 psi @ 70° F | 1.5 | 35° to 200° | Dark Gray | 4 5/8" | 0000000 | 000000 |
| 3/4 | __ | 7.7 | 150 psi @ 70° F | 1.5 | 35° to 200° | Dark Gray | 4 3/4" | 0000000 | 00000 |
| 1 | __ | 11 | 150 psi @ 70° F | 1.5 | 35° to 200° | Dark Gray | 5 1/4" | 0000000 | 000000 |
| 1 1/2 | __ | 45 | 150 psi @ 70° F | 1.5 | 35° to 200° | Dark Gray | 6 3/4" | 0000000 | 000000 |
| 2 | __ | 130 | 150 psi @ 70° F | 1.5 | 35° to 200° | Dark Gray | 8" | 0000000 | 000000 |
Metric Female × Metric Female | |||||||||
| __ | 15 | 4.8 | 150 psi @ 70° F | 1.5 | 35° to 200° | Dark Gray | 118mm | 0000000 | 00000 |
| __ | 20 | 7.7 | 150 psi @ 70° F | 1.5 | 35° to 200° | Dark Gray | 121mm | 0000000 | 00000 |
| __ | 25 | 11 | 150 psi @ 70° F | 1.5 | 35° to 200° | Dark Gray | 133mm | 0000000 | 000000 |
| __ | 40 | 45 | 150 psi @ 70° F | 1.5 | 35° to 200° | Dark Gray | 171mm | 0000000 | 000000 |
| __ | 50 | 130 | 150 psi @ 70° F | 1.5 | 35° to 200° | Dark Gray | 203mm | 0000000 | 000000 |
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 Push-to-Connect
Fittings for Harsh Chemicals
- For Use With: Air, Argon, Butane, Carbon Dioxide, Chlorine, Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Gasoline, Helium, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Krypton, Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Phosphoric Acid, Propane, Salt Water, Soap Solutions, Sodium Hypochlorite, Sulfuric Acid, Toluene, Water, Xenon, Xylene
- Piston Material: PVDF Plastic
- Spring Material: PVDF Plastic
- Seal Material: Fluoroelastomer Rubber
Connect your outlet tubing into the push-to-connect fittings—no heat, solder, or flux required. These valves have a PVDF body and a fluoroelastomer seal for excellent chemical resistance. They open to allow flow in one direction and close when flow stops or reverses.
| Pipe Size | For Tube OD | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
PVDF Plastic Body | ||||||||
|---|---|---|---|---|---|---|---|---|
NPTF Male Inlet × Push-to-Connect Outlet | ||||||||
| 1/4 | 3/8" | 300 psi @ 70° F | 0.5 | 0° to 250° | Black | 1 3/8" | 0000000 | 000000 |
| 1/4 | 3/8" | 300 psi @ 70° F | 1.5 | 0° to 250° | Black/Blue | 1 3/8" | 0000000 | 00000 |
| 1/4 | 3/8" | 300 psi @ 70° F | 3 | 0° to 250° | Black/Red | 1 3/8" | 0000000 | 00000 |
| 1/4 | 3/8" | 300 psi @ 70° F | 4 | 0° to 250° | Black/Green | 1 3/8" | 0000000 | 00000 |
Socket-Connect Check Valves for Harsh Chemicals
Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. These valves have a plastic body and a fluoroelastomer seal for excellent chemical resistance. 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 Use With: Citric Acid, Deionized Water, Diesel Fuel, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite, Water
- Piston Material: PVC Plastic
- Spring Material: PVC Plastic
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | For Pipe Schedule | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
Socket Connect × Socket Connect | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 40, 80 | 0.8 | 150 psi @ 70° F | 2 | 40° to 140° | Dark Gray | 3 3/8" | 000000 | 0000000 |
| 3/4 | 40, 80 | 3 | 150 psi @ 70° F | 2 | 40° to 140° | Dark Gray | 4 3/16" | 000000 | 000000 |
| 1 | 40, 80 | 9 | 150 psi @ 70° F | 2 | 40° to 140° | Dark Gray | 5 3/16" | 000000 | 000000 |
| 1 1/4 | 40, 80 | 26 | 150 psi @ 70° F | 2 | 40° to 140° | Dark Gray | 6 5/8" | 000000 | 000000 |
| 1 1/2 | 40, 80 | 45 | 150 psi @ 70° F | 2 | 40° to 140° | Dark Gray | 6 5/8" | 000000 | 000000 |
| 2 | 40, 80 | 65 | 150 psi @ 70° F | 2 | 40° to 140° | Dark Gray | 7 5/8" | 000000 | 000000 |
- For Use With: Citric Acid, Deionized Water, Diesel Fuel, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Mineral Spirits, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Sodium Hypochlorite, Water
- Piston Material: CPVC Plastic
- Spring Material: CPVC Plastic
- Seal Material: Fluoroelastomer Rubber
| Pipe Size | For Pipe Schedule | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
Socket Connect × Socket Connect | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 40, 80 | 0.8 | 150 psi @ 70° F | 2 | 40° to 190° | Light Gray | 3 3/8" | 0000000 | 0000000 |
| 3/4 | 40, 80 | 3 | 150 psi @ 70° F | 2 | 40° to 190° | Light Gray | 4 3/16" | 0000000 | 000000 |
| 1 | 40, 80 | 9 | 150 psi @ 70° F | 2 | 40° to 190° | Light Gray | 5 3/16" | 0000000 | 000000 |
| 1 1/4 | 40, 80 | 26 | 150 psi @ 70° F | 2 | 40° to 190° | Light Gray | 6 5/8" | 0000000 | 000000 |
| 1 1/2 | 40, 80 | 45 | 150 psi @ 70° F | 2 | 40° to 190° | Light Gray | 6 5/8" | 0000000 | 000000 |
| 2 | 40, 80 | 65 | 150 psi @ 70° F | 2 | 40° to 190° | Light Gray | 7 5/8" | 0000000 | 000000 |
Clear-View Socket-Connect Check
Valves for Harsh Chemicals
- For Use With: Carbon Dioxide, Citric Acid, Deionized Water, Diesel Fuel, Hydrochloric Acid, Methanol, Nitric Acid, Phosphoric Acid, Salt Water, Sulfuric Acid, Water
- Piston Material: PVC Plastic
- Seal Material: Fluoroelastomer Rubber
Visually inspect flow and debris accumulation through the transparent valve body. Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. Valves have a PVC body and a fluoroelastomer seal for excellent chemical resistance. They open to allow flow in one direction and close when flow stops or reverses. All have a removable cap that provides easy access to internal components for maintenance.
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 | For Pipe Schedule | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Features | Each | |
PVC Plastic Body | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Socket Connect × Socket Connect | ||||||||||
| 1/2 | 40, 80 | 6.7 | 150 psi @ 70° F | 0.29 | 35° to 140° | Clear | 5 5/8" | Removable Cap | 0000000 | 000000 |
| 3/4 | 40, 80 | 11.9 | 150 psi @ 70° F | 0.29 | 35° to 140° | Clear | 6 5/16" | Removable Cap | 0000000 | 00000 |
| 1 | 40, 80 | 21 | 150 psi @ 70° F | 0.29 | 35° to 140° | Clear | 6 7/8" | Removable Cap | 0000000 | 00000 |
Flanged Check Valves for Harsh Chemicals
- For Use With: Ammonia, Chlorine, Citric Acid, Deionized Water, Diesel Fuel, Ethanol, Ethylene Glycol, Fuel Oil, Gasoline, Hydrochloric Acid, Isopropyl Alcohol, Kerosene, Methanol, Methyl Ethyl Ketone, Mineral Spirits, Oil, Phosphoric Acid, Salt Water, Soap Solutions, Toluene, Water, Xylene
- Ball Material: PTFE Plastic
- Seal Material: PTFE Plastic
Bolt these valves to ANSI flanges. The glass-filled vinyl body and PTFE seal stand up to a wide range of harsh chemicals. Valves 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.
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | For Flange Class | Flange OD | Number of Bolt Holes | Bolt Hole Size | Bolt Circle Dia. | Bolts Included | Each | |
Glass-Filled Vinyl Plastic Body | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Flanged × Flanged | ||||||||||||||
| 1 | 35 | 210 psi @ 250 ° F | 1 | -40° to 250° | Tan | 5" | 150 | 4 1/4" | 4 | 5/8" | 3 1/8" | No | 000000 | 0000000 |
| 1 1/2 | 48 | 210 psi @ 250 ° F | 1 | -40° to 250° | Tan | 6 1/2" | 150 | 5" | 4 | 5/8" | 3 7/8" | No | 000000 | 000000 |
| 2 | 54 | 140 psi @ 250 ° F | 1 | -40° to 250° | Tan | 7" | 150 | 6" | 4 | 3/4" | 4 3/4" | No | 000000 | 000000 |
| 3 | 163 | 140 psi @ 250 ° F | 1 | -40° to 250° | Tan | 8" | 150 | 7 1/2" | 4 | 3/4" | 6" | No | 000000 | 000000 |
| 4 | 288 | 110 psi @ 250 ° F | 1 | -40° to 250° | Tan | 9" | 150 | 9" | 8 | 3/4" | 7 1/2" | No | 000000 | 00000000 |
| 6 | 495 | 110 psi @ 250 ° F | 1 | -40° to 250° | Tan | 10 1/2" | 150 | 11" | 8 | 7/8" | 9 1/2" | No | 000000 | 00000000 |