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About Backflow-Prevention Valves
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Check Valves with Barbed Fittings
Barbed Male Inlet × NPT Male Outlet (Spring-Loaded Ball)
Barbed Male Inlet × Barbed Male Outlet (Spring-Loaded Ball)
NPT Male Inlet × Barbed Male Outlet (Spring-Loaded Ball)
Barbed Male Inlet × NPT Male Outlet (Spring-Loaded Piston)
NPT Male Inlet × Barbed Male Outlet (Spring-Loaded Piston)
Barbs grip onto tubing, providing a secure hold. These valves open to allow flow in one direction and close when flow stops or reverses.
Nylon valves are more impact resistant than PVC or polypropylene valves.
Polypropylene valves are more corrosion resistant than PVC or nylon 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—Spring-Loaded Ball
- For Use With: Air, Argon, Helium, Krypton, Neon, Water, Xenon
- Ball Material: 316 Stainless Steel
- Spring Material: 302 Stainless Steel
- Seal Material: Buna-N Rubber
| For Inlet Tube ID | Pipe Size | For Outlet Tube ID | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
Barbed Male Inlet × NPT Male Outlet | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/8" | 1/8 | __ | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 2 5/8" | 0000000 | 000000 |
| 1/8" | 1/4 | __ | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 2 3/4" | 0000000 | 00000 |
| 1/4" | 1/4 | __ | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 3/16" | 00000000 | 00000 |
| 5/16" | 1/4 | __ | 1 | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 3/16" | 00000000 | 00000 |
| 3/8" | 1/8 | __ | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/8" | 00000000 | 00000 |
| 3/8" | 1/4 | __ | 1 | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 3/16" | 00000000 | 00000 |
| 1/2" | 1/4 | __ | 1 | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 3/16" | 00000000 | 00000 |
Barbed Male Inlet × Barbed Male Outlet | ||||||||||
| 1/8" | __ | 1/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 2 5/8" | 0000000 | 00000 |
| 1/8" | __ | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/16" | 0000000 | 00000 |
| 1/4" | __ | 1/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/16" | 0000000 | 00000 |
| 1/4" | __ | 1/4" | 0.5 | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/2" | 0000000 | 00000 |
| 5/16" | __ | 5/16" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/2" | 0000000 | 00000 |
| 3/8" | __ | 3/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/2" | 0000000 | 00000 |
| 3/8" | __ | 1/2" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/2" | 0000000 | 00000 |
| 1/2" | __ | 1/2" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/2" | 0000000 | 00000 |
NPT Male Inlet × Barbed Male Outlet | ||||||||||
| __ | 1/8 | 1/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 2 5/8" | 0000000 | 00000 |
| __ | 1/8 | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 1/8" | 0000000 | 00000 |
| __ | 1/4 | 1/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 2 3/4" | 0000000 | 00000 |
| __ | 1/4 | 3/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 3/16" | 0000000 | 00000 |
| __ | 1/4 | 1/2" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | Dark Gray | 3 3/16" | 0000000 | 00000 |
Nylon Plastic Body—Spring-Loaded Ball
- For Use With: Air, Argon, Helium, Krypton, Neon, Water, Xenon
- Ball Material: 316 Stainless Steel
- Spring Material: 302 Stainless Steel
- Seal Material: Buna-N Rubber
| For Inlet Tube ID | Pipe Size  | For Outlet Tube ID | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
Barbed Male Inlet × Barbed Male Outlet | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/8" | __ | 1/8" | 0.1 | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 3/8" | 0000000 | 00000 |
| 1/8" | __ | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 11/16" | 0000000 | 0000 |
| 3/16" | __ | 1/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 9/16" | 0000000 | 0000 |
| 3/16" | __ | 3/16" | 0.2 | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 3/4" | 0000000 | 0000 |
| 1/4" | __ | 1/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 11/16" | 0000000 | 0000 |
| 1/4" | __ | 1/4" | 0.3 | 125 psi @ 70° F | 1 | 35° to 140° | White | 2 1/16" | 0000000 | 0000 |
| 5/16" | __ | 5/16" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 1/2" | 0000000 | 00000 |
| 3/8" | __ | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 1/2" | 0000000 | 00000 |
| 3/8" | __ | 3/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 1/2" | 0000000 | 00000 |
| 1/2" | __ | 1/2" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 1/8" | 0000000 | 00000 |
Barbed Male Inlet × NPT Male Outlet | ||||||||||
| 1/8" | 1/8 | __ | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 5/8" | 00000000 | 0000 |
| 1/8" | 1/4 | __ | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 13/16" | 00000000 | 0000 |
| 3/16" | 1/8 | __ | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 13/16" | 00000000 | 0000 |
| 1/4" | 1/4 | __ | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 2 1/8" | 00000000 | 0000 |
| 3/8" | 1/4 | __ | 1 | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 3/16" | 00000000 | 00000 |
Nylon Plastic Body—Spring-Loaded Piston
- For Use With: Air, Water
- Piston Material: Nylon Plastic
- Spring Material: 316 Stainless Steel
- Seal Material: Buna-N Rubber
| For Inlet Tube ID | Pipe Size | For Outlet Tube ID | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
Barbed Male Inlet × NPT Male Outlet | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 3/16" | 1/8 | __ | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 1/2" | 0000000 | 000000 |
| 1/4" | 1/4 | __ | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 5/8" | 0000000 | 00000 |
| 1/4" | 1/2 | __ | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 3/4" | 0000000 | 00000 |
| 3/8" | 3/8 | __ | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 5/8" | 00000000 | 00000 |
| 3/8" | 1/2 | __ | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 3/4" | 00000000 | 00000 |
| 1/2" | 3/8 | __ | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 9/16" | 00000000 | 00000 |
| 1/2" | 1/2 | __ | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 11/16" | 00000000 | 00000 |
| 1/2" | 3/4 | __ | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 11/16" | 00000000 | 00000 |
| 5/8" | 3/8 | __ | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 5/8" | 00000000 | 00000 |
| 5/8" | 1/2 | __ | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 3/4" | 00000000 | 00000 |
| 5/8" | 3/4 | __ | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 13/16" | 00000000 | 00000 |
| 3/4" | 1/2 | __ | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 7/8" | 00000000 | 00000 |
| 3/4" | 3/4 | __ | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 7/8" | 00000000 | 00000 |
| 3/4" | 1 | __ | Not Rated | Not Rated | 1 | -20° to 250° | White | 2 5/16" | 00000000 | 00000 |
NPT Male Inlet × Barbed Male Outlet | ||||||||||
| __ | 1/8 | 3/16" | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 1/2" | 0000000 | 00000 |
| __ | 1/4 | 1/4" | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 5/8" | 0000000 | 00000 |
| __ | 1/4 | 3/8" | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 5/8" | 0000000 | 00000 |
| __ | 3/8 | 3/8" | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 5/8" | 0000000 | 00000 |
| __ | 1/2 | 3/8" | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 3/4" | 0000000 | 00000 |
| __ | 1/2 | 1/2" | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 3/4" | 0000000 | 00000 |
| __ | 3/4 | 3/8" | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 3/4" | 00000000 | 00000 |
| __ | 3/4 | 5/8" | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 13/16" | 00000000 | 00000 |
| __ | 3/4 | 3/4" | Not Rated | Not Rated | 1 | -20° to 250° | White | 1 7/8" | 00000000 | 00000 |
| __ | 1 | 3/4" | Not Rated | Not Rated | 1 | -20° to 250° | White | 2 5/16" | 00000000 | 00000 |
Polypropylene Plastic Body—Spring-Loaded Ball
- For Use With: Air, Argon, Helium, Krypton, Neon, Water, Xenon
- Ball Material: 316 Stainless Steel
- Spring Material: 302 Stainless Steel
- Seal Material: Buna-N Rubber
| For Inlet Tube ID | Pipe Size | For Outlet Tube ID | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
Barbed Male Inlet × Barbed Male Outlet | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/8" | __ | 1/8" | 0.1 | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 3/8" | 0000000 | 00000 |
| 1/8" | __ | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 11/16" | 0000000 | 0000 |
| 3/16" | __ | 3/16" | 0.2 | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 3/4" | 0000000 | 0000 |
| 3/16" | __ | 1/4" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 7/8" | 0000000 | 0000 |
| 1/4" | __ | 1/4" | 0.3 | 125 psi @ 70° F | 1 | 35° to 140° | White | 2 1/16" | 0000000 | 0000 |
| 5/16" | __ | 5/16" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 1/2" | 0000000 | 00000 |
| 3/8" | __ | 3/8" | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 1/2" | 0000000 | 00000 |
| 1/2" | __ | 1/2" | 1 | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 1/2" | 0000000 | 00000 |
Barbed Male Inlet × NPT Male Outlet | ||||||||||
| 1/8" | 1/8 | __ | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 5/8" | 00000000 | 0000 |
| 1/8" | 1/4 | __ | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 1 13/16" | 00000000 | 0000 |
| 1/4" | 1/4 | __ | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 2 1/8" | 00000000 | 0000 |
| 5/16" | 1/4 | __ | Not Rated | 125 psi @ 70° F | 1 | 35° to 140° | White | 3 3/16" | 00000000 | 00000 |
Heavy Duty Check Valves with Barbed Fittings
- For Use With: Air, Argon, Helium, Krypton, Neon, Water, Xenon
- Piston Material: Fluoroelastomer Rubber
- Spring Material: 302 Stainless Steel
- Seal Material: Fluoroelastomer Rubber
For more durability than plastic barbed check valves, these have a stainless steel body. Barbs grip onto tubing, providing a secure hold. Valves open to allow flow in one direction and close when flow stops or reverses. The stainless steel body provides excellent corrosion resistance.
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.
Barbed Inlet × Barbed Outlet
| For Tube ID | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | End-to-End Lg. | Each | |
303 Stainless Steel Body | |||||||
|---|---|---|---|---|---|---|---|
| 1/4" | 0.5 | 300 psi @ 70° F | 2 | -10° to 300° | 4 1/4" | 0000000 | 000000 |
| 3/8" | 1.1 | 300 psi @ 70° F | 2 | -10° to 300° | 4 1/4" | 0000000 | 00000 |
| 1/2" | Not Rated | 300 psi @ 70° F | 2 | -10° to 300° | 4 3/8" | 0000000 | 00000 |
| 3/4" | Not Rated | 300 psi @ 70° F | 2 | -10° to 300° | 4 5/8" | 0000000 | 00000 |
| 1" | 11.9 | 300 psi @ 70° F | 2 | 30° to 300° | 4 3/4" | 0000000 | 00000 |
Barbed Inlet × NPT Female Outlet
| For Tube ID | Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | End-to-End Lg. | Each | |
303 Stainless Steel Body | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/4" | 1/4 | 0.5 | 300 psi @ 70° F | 2 | -10° to 300° | 3 7/16" | 0000000 | 000000 |
| 3/8" | 3/8 | 1.1 | 300 psi @ 70° F | 2 | -10° to 300° | 3 7/16" | 0000000 | 00000 |
| 1/2" | 1/2 | Not Rated | 300 psi @ 70° F | 2 | -10° to 300° | 3 1/2" | 0000000 | 00000 |
| 3/4" | 3/4 | Not Rated | 300 psi @ 70° F | 2 | -10° to 300° | 3 15/16" | 0000000 | 00000 |
| 1" | 1 | 11.9 | 300 psi @ 70° F | 2 | 30° to 300° | 4 1/4" | 000000 | 00000 |
NPT Female Inlet × Barbed Outlet
Outlet | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Barbed Connection Type | For Tube ID | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | End-to-End Lg. | Each | |
303 Stainless Steel Body | |||||||||
| 1/4 | Barbed | 1/4" | 0.5 | 300 psi @ 70° F | 2 | -10° to 300° | 3 7/16" | 0000000 | 000000 |
| 3/8 | Barbed | 3/8" | 1.1 | 300 psi @ 70° F | 2 | -10° to 300° | 3 7/16" | 0000000 | 00000 |
| 1/2 | Barbed | 1/2" | Not Rated | 300 psi @ 70° F | 2 | -10° to 300° | 3 1/2" | 0000000 | 00000 |
| 3/4 | Barbed | 3/4" | Not Rated | 300 psi @ 70° F | 2 | -10° to 300° | 3 15/16" | 0000000 | 00000 |
| 1 | Barbed | 1" | 11.9 | 300 psi @ 70° F | 2 | 30° to 300° | 4 1/4" | 0000000 | 00000 |
High-Cycling Check Valves
Barbed Male Inlet × Barbed Male Outlet
NPT Male Inlet × Barbed 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.
Polycarbonate valves are clear so you can monitor your line.
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
| Pipe Size | For Tube ID | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Diaphragm Material | Seal Material | Color | End-to-End Lg. | Each | |
Barbed Male Inlet × Barbed Male Outlet | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| __ | 1/8" | 50 psi @ 65° F | 0.5 | -60° to 200° | Silicone Rubber | Silicone Rubber | Off-White | 1 1/4" | 000000000 | 00000 |
| __ | 3/16" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | Black | 1 11/16" | 00000000 | 0000 |
| __ | 3/16" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluorosilicone Rubber | Fluorosilicone Rubber | Black | 1 11/16" | 00000000 | 0000 |
| __ | 1/4" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluorosilicone Rubber | Fluorosilicone Rubber | Black | 1 9/16" | 00000000 | 0000 |
| __ | 5/16" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluorosilicone Rubber | Fluorosilicone Rubber | Black | 1 9/16" | 00000000 | 0000 |
| __ | 3/8" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | Black | 1 9/16" | 000000000 | 0000 |
| __ | 3/8" | 50 psi @ 65° F | 0.5 | -60° to 200° | Silicone Rubber | Silicone Rubber | Off-White | 1 7/8" | 000000000 | 000 |
NPT Male Inlet × Barbed Male Outlet | ||||||||||
| 1/8 | 1/8" | 50 psi @ 65° F | 0.5 | -60° to 200° | Silicone Rubber | Silicone Rubber | Off-White | 1 3/8" | 0000000 | 0000 |
| 1/8 | 3/16" | 50 psi @ 65° F | 0.5 | -60° to 200° | Silicone Rubber | Silicone Rubber | Off-White | 1 9/16" | 0000000 | 0000 |
| 1/8 | 3/8" | 50 psi @ 65° F | 0.5 | -60° to 200° | Silicone Rubber | Silicone Rubber | Off-White | 1 5/8" | 0000000 | 0000 |
Polypropylene Plastic Body
- For Use With: Air, Water
- Diaphragm Material: See table
- Seal Material: See table
| Pipe Size | For Tube ID | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Diaphragm Material | Seal Material | Color | End-to-End Lg. | Each | |
Barbed Male Inlet × Barbed Male Outlet | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| __ | 1/8" | 50 psi @ 65° F | 0.5 | 32° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | Off-White | 1 1/4" | 000000000 | 00000 |
| __ | 3/16" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | White | 1 11/16" | 00000000 | 0000 |
| __ | 1/4" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | Black | 1 9/16" | 00000000 | 0000 |
| __ | 1/4" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluorosilicone Rubber | Fluorosilicone Rubber | Black | 1 9/16" | 000000000 | 0000 |
| __ | 5/16" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | Black | 1 3/4" | 00000000 | 0000 |
| __ | 3/8" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluorosilicone Rubber | Fluorosilicone Rubber | Black | 1 9/16" | 000000000 | 0000 |
| __ | 3/8" | 50 psi @ 65° F | 0.5 | 32° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | Off-White | 1 7/8" | 000000000 | 0000 |
NPT Male Inlet × Barbed Male Outlet | ||||||||||
| 1/8 | 1/8" | 50 psi @ 65° F | 0.5 | 32° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | Off-White | 1 3/8" | 000000000 | 0000 |
| 1/8 | 3/16" | 50 psi @ 65° F | 0.5 | 32° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | Off-White | 1 1/2" | 000000000 | 0000 |
| 1/8 | 1/4" | 50 psi @ 65° F | 0.5 | 32° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | Off-White | 1 1/2" | 000000000 | 0000 |
| 1/8 | 3/8" | 50 psi @ 65° F | 0.5 | 32° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | Off-White | 1 5/8" | 000000000 | 0000 |
Polycarbonate Plastic Body
- For Use With: Air, Water
- Diaphragm Material: Silicone Rubber
- Seal Material: Silicone Rubber
| Pipe Size | For Tube ID | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Each | |
Barbed Male Inlet × Barbed Male Outlet | ||||||||
|---|---|---|---|---|---|---|---|---|
| __ | 1/8" | 50 psi @ 65° F | 0.5 | -80° to 275° | Clear | 1 1/4" | 000000000 | 00000 |
| __ | 3/16" | 50 psi @ 65° F | 0.5 | -80° to 275° | Clear | 1 11/16" | 000000000 | 0000 |
| __ | 1/4" | 50 psi @ 65° F | 0.5 | -80° to 275° | Clear | 1 5/8" | 000000000 | 000 |
| __ | 3/8" | 50 psi @ 65° F | 0.5 | -80° to 275° | Clear | 1 15/16" | 000000000 | 0000 |
NPT Male Inlet × Barbed Male Outlet | ||||||||
| 1/8 | 1/8" | 50 psi @ 65° F | 0.5 | -80° to 275° | Clear | 1 3/8" | 000000000 | 0000 |
| 1/8 | 3/16" | 50 psi @ 65° F | 0.5 | -80° to 275° | Clear | 1 1/2" | 000000000 | 0000 |
| 1/8 | 1/4" | 50 psi @ 65° F | 0.5 | -80° to 275° | Clear | 1 1/2" | 000000000 | 0000 |
| 1/8 | 3/8" | 50 psi @ 65° F | 0.5 | -80° to 275° | Clear | 1 5/8" | 000000000 | 0000 |
Check Valves with Barbed Fittings for Harsh Chemicals
Diaphragm Check Valve
Spring-Loaded Ball Check Valve
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.
PVDF Plastic Body—Diaphragm
- 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 |
Polypropylene Plastic Body—Spring-Loaded Ball
- 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
Nylon Plastic Body—Spring-Loaded Ball
- 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 Barbed Fittings for Vacuum
- For Use With: Air, Water
- Disc Material: Neoprene Rubber
- Seal Material: Polyethylene Plastic
Barbs grip onto tubing, providing a secure hold to prevent vacuum loss in tubing lines. These valves 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.