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About Backflow-Prevention Valves
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Check Valves with Push-to-Connect Fittings
Insert tubing into the push-to-connect fittings—no heat, solder, or flux required. These valves open to allow flow in one direction and close when flow stops or reverses.
Acetal valves are more wear resistant than PVC 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.
Acetal Plastic Body—Push-to-Connect Female Inlet × Push-to-Connect Female Outlet Straight
Push-to-Connect Female Inlet × Push-to-Connect Female Outlet Straight
- For Use With: Air, Water
- Piston Material: Acetal Plastic
- Spring Material: 302 Stainless Steel
- Seal Material: Buna-N Rubber
| For Tube OD | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
| 1/4" | 0.65 | 145 psi @ 70° F | 0.3 | -30° to 250° | White | 1 13/16" | 00000000 | 000000 |
Acetal Plastic Body—NPT Male Inlet × Push-to-Connect Female Outlet Straight
NPT Male Inlet × Push-to-Connect Female Outlet Straight
- For Use With: Air, Water
- Piston Material: Nylon Plastic
- Spring Material: See Table
- Seal Material: Buna-N Rubber
| Inlet Pipe Size  | For Outlet Tube OD | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Spring Material | Color | End-to-End Lg. | Each | |
| 1/8 | 5/32" | Not Rated | 125 psi @ 70° F | 1 | 40° to 100° | 316 Stainless Steel | Gray | 1" | 0000000 | 000000 |
| 1/8 | 3/16" | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1" | 00000000 | 00000 |
| 1/8 | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 40° to 100° | 316 Stainless Steel | Gray | 7/8" | 0000000 | 00000 |
| 1/8 | 5/16" | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 1/16" | 00000000 | 00000 |
| 1/8 | 3/8" | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 1/4" | 00000000 | 00000 |
| 1/4 | 5/32" | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 1/8" | 00000000 | 00000 |
| 1/4 | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 40° to 100° | 316 Stainless Steel | Gray | 1 1/16" | 0000000 | 00000 |
| 1/4 | 5/16" | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 1/16" | 00000000 | 00000 |
| 1/4 | 3/8" | Not Rated | 125 psi @ 70° F | 1 | 40° to 100° | 316 Stainless Steel | Gray | 1 3/8" | 0000000 | 00000 |
| 3/8 | 1/4" | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 1/16" | 00000000 | 00000 |
| 3/8 | 5/16" | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 1/8" | 00000000 | 00000 |
| 3/8 | 3/8" | Not Rated | 125 psi @ 70° F | 1 | 40° to 100° | 316 Stainless Steel | Gray | 1 7/16" | 0000000 | 00000 |
| 3/8 | 1/2" | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 7/16" | 00000000 | 00000 |
| 1/2 | 3/8" | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 7/16" | 00000000 | 00000 |
| 1/2 | 1/2" | Not Rated | 125 psi @ 70° F | 1 | 40° to 100° | 316 Stainless Steel | Gray | 1 1/2" | 0000000 | 00000 |
Acetal Plastic Body—NPT Male Inlet × Push-to-Connect Female Outlet 90° Elbow
NPT Male Inlet ×
Push-to-Connect
Female Outlet 90° Elbow
Push-to-Connect
Female Outlet 90° Elbow
- For Use With: Air, Water
- Piston Material: Nylon Plastic
- Spring Material: See Table
- Seal Material: Buna-N Rubber
| Inlet Pipe Size | For Outlet Tube OD | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Spring Material | Color | Port-to-Port Lg. | Each | |
| 1/8 | 5/32" | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 1/4" | 00000000 | 000000 |
| 1/8 | 3/16" | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 1/4" | 00000000 | 00000 |
| 1/8 | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 40° to 100° | 316 Stainless Steel | Gray | 1 5/16" | 0000000 | 00000 |
| 1/8 | 5/16" | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 3/8" | 00000000 | 00000 |
| 1/4 | 5/32" | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 7/16" | 00000000 | 00000 |
| 1/4 | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 40° to 100° | 316 Stainless Steel | Gray | 1 1/2" | 0000000 | 00000 |
| 1/4 | 5/16" | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 9/16" | 00000000 | 00000 |
| 1/4 | 3/8" | Not Rated | 125 psi @ 70° F | 1 | 40° to 100° | 316 Stainless Steel | Gray | 1 1/2" | 0000000 | 00000 |
| 3/8 | 1/4" | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 1/2" | 00000000 | 00000 |
| 3/8 | 5/16" | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 9/16" | 00000000 | 00000 |
| 3/8 | 3/8" | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 1 3/4" | 00000000 | 00000 |
| 3/8 | 1/2" | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 2 1/16" | 00000000 | 00000 |
| 1/2 | 1/2" | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | 302 Stainless Steel | Gray | 2 1/4" | 00000000 | 00000 |
Acetal Plastic Body—Push-to-Connect Female Inlet × NPT Male Outlet Straight
Push-to-Connect Female Inlet × NPT Male Outlet Straight
- For Use With: Air, Water
- Piston Material: Nylon Plastic
- Spring Material: 302 Stainless Steel
- Seal Material: Buna-N Rubber
| For Inlet Tube OD | Outlet Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
| 5/32" | 1/8 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1" | 00000000 | 000000 |
| 5/32" | 1/4 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 1/8" | 00000000 | 00000 |
| 3/16" | 1/8 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1" | 00000000 | 00000 |
| 1/4" | 1/8 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 7/8" | 00000000 | 00000 |
| 1/4" | 1/4 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 1/16" | 00000000 | 00000 |
| 1/4" | 3/8 | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 1/16" | 00000000 | 00000 |
| 5/16" | 1/8 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 1/16" | 00000000 | 00000 |
| 5/16" | 1/4 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 1/16" | 00000000 | 00000 |
| 5/16" | 3/8 | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 1/8" | 00000000 | 00000 |
| 3/8" | 1/8 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 1/4" | 00000000 | 00000 |
| 3/8" | 1/4 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 3/8" | 00000000 | 00000 |
| 3/8" | 3/8 | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 7/16" | 00000000 | 00000 |
| 3/8" | 1/2 | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 7/16" | 00000000 | 00000 |
| 1/2" | 3/8 | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 7/16" | 00000000 | 00000 |
Acetal Plastic Body—Push-to-Connect Female Inlet × NPT Male Outlet 90° Elbow
Push-to-Connect Female Inlet × NPT Male Outlet 90° Elbow
- For Use With: Air, Water
- Piston Material: Nylon Plastic
- Spring Material: 302 Stainless Steel
- Seal Material: Buna-N Rubber
| For Inlet Tube OD | Outlet Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | Port-to-Port Lg. | Each | |
| 5/32" | 1/8 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 1/4" | 00000000 | 000000 |
| 5/32" | 1/4 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 1/2" | 00000000 | 00000 |
| 3/16" | 1/8 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 1/4" | 00000000 | 00000 |
| 1/4" | 1/8 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 3/8" | 00000000 | 00000 |
| 1/4" | 1/4 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 9/16" | 00000000 | 00000 |
| 1/4" | 3/8 | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 9/16" | 00000000 | 00000 |
| 5/16" | 1/8 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 3/8" | 00000000 | 00000 |
| 5/16" | 1/4 | 0.65 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 9/16" | 00000000 | 00000 |
| 5/16" | 3/8 | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 9/16" | 00000000 | 00000 |
| 3/8" | 3/8 | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 1 3/4" | 00000000 | 00000 |
| 1/2" | 3/8 | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 2 1/16" | 00000000 | 00000 |
| 1/2" | 1/2 | 1.1 | 125 psi @ 70° F | 1 | -30° to 250° | Gray | 2 1/4" | 00000000 | 00000 |
Check Valves with Push-to-Connect Fittings for Drinking Water
- For Use With: Drinking Water
- Piston Material: Acetal Plastic
- Spring Material:
For 1/2", 8mm, and 10mm Tube ODs: Acetal Plastic
All other sizes: Stainless Steel - Seal Material: See table
Insert tubing into the push-to-connect fittings on these valves—no heat, solder, or flux required. Valves meet NSF/ANSI 61 for use in drinking water systems. All 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.
| For Tube OD | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Seal Material | Color | End-to-End Lg. | Each | |
Acetal Plastic Body | ||||||||
|---|---|---|---|---|---|---|---|---|
Push to Connect × Push to Connect | ||||||||
| 1/4" | 145 psi @ 70° F | 0.3 | 40° to 100° | Acetal Plastic | White | 1 15/16" | 0000000 | 000000 |
| 5/16" | 145 psi @ 70° F | 0.3 | 40° to 100° | Acetal Plastic | White | 2" | 0000000 | 00000 |
| 3/8" | 145 psi @ 70° F | 0.3 | 40° to 100° | Acetal Plastic | White | 2 5/8" | 0000000 | 00000 |
| 1/2" | 150 psi @ 70° F | 0.333 | 30° to 150° | EPDM Rubber | Gray | 2 11/16" | 0000000 | 00000 |
| 6mm | 145 psi @ 150° F | 0.29 | 35° to 145° | EPDM Rubber | Black | 1 15/16" | 0000000 | 00000 |
| 8mm | 145 psi @ 70° F | 0.333 | 35° to 145° | EPDM Rubber | White | 1 15/16" | 0000000 | 00000 |
| 10mm | 145 psi @ 70° F | 0.333 | 35° to 145° | EPDM Rubber | White | 2 1/4" | 0000000 | 00000 |
| 12mm | 100 psi @ 150° F | 0.29 | 35° to 145° | EPDM Rubber/ Nitrile Rubber/ Silicone Rubber | Black | 2 11/16" | 000000 | 00000 |