Connection Style Connection Style | Show |
|---|
 | Unthreaded |
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 |
Body Material Body Material |
|---|
|
System of Measurement System of Measurement |
|---|
|
For Tube ID For Tube ID |
|---|
|
Shape Shape |
|---|
 | Straight |
Valve Type Valve Type |
|---|
|
Mounting Orientation Mounting Orientation |
|---|
|
Minimum Opening Pressure Minimum Opening Pressure |
|---|
|
Seal Material Seal Material |
|---|
|
Check Valve Type Check Valve Type |
|---|
|
Maximum Temperature Maximum Temperature |
|---|
|
Thread Type Thread Type |
|---|
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
High-Cycling Check Valves
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.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Water
- Diaphragm Material: See table
- Seal Material: See table
| For Tube ID | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Diaphragm Material | Seal Material | Color | End-to-End Lg. | Each | |
Unthreaded Male Inlet × Unthreaded Male Outlet | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/8" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluorosilicone Rubber | Fluorosilicone Rubber | Black | 1 5/8" | 00000000 | 00000 |
- For Use With: Air, Water
- Diaphragm Material: See table
- Seal Material: See table
| For Tube ID | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Diaphragm Material | Seal Material | Color | End-to-End Lg. | Each | |
Unthreaded Male Inlet × Unthreaded Male Outlet | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/8" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluoroelastomer Rubber | Fluoroelastomer Rubber | White | 1 5/8" | 00000000 | 00000 |
| 1/8" | 15 psi @ 70° F | 0.5 | -20° to 250° | Fluorosilicone Rubber | Fluorosilicone Rubber | Black | 1 5/8" | 000000000 | 00000 |
Vacuum-Breaking Valves
Also known as vacuum breakers, these valves have vents that open when pressure drops to relieve vacuum conditions and prevent backward suction from drawing liquid into upstream piping.
303 stainless steel valves have the best corrosion resistance.
Straights are often used with steam coils, heat exchangers, and space heaters.
For technical drawings and 3-D models, click on a part number.
Unthreaded
Female Outlet
- For Use With: Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon
- Seal Material: EPR Rubber
Brass Body | 303 Stainless Steel Body | |||||||
|---|---|---|---|---|---|---|---|---|
| Inlet Pipe Size  | For Outlet Tube OD | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | Each | ||
NPT Male Inlet × Unthreaded Female Outlet | ||||||||
| 1/2 | 11/16" | 300 psi @ 70° F | -20° to 365° | 1 3/4" | 0000000 | 0000000 | 0000000 | 0000000 |
| 3/4 | 13/16" | 300 psi @ 70° F | -20° to 365° | 2 1/8" | 0000000 | 000000 | 0000000 | 000000 |
| 1 | 1 1/16" | 300 psi @ 70° F | -20° to 365° | 2 3/8" | 0000000 | 000000 | 0000000 | 000000 |