About On/Off Valves
More
On/Off Valves with Press-Connect Fittings
Crimp these valves to metal tubing for a permanent, leak-tight connection that doesn’t require heat or soldering. All are full port, so they do not restrict flow. Choose a crimping tool based on your valve's compatibility: Viega ProPress or Viega MegaPress.
Bronze valves resist corrosion better than brass and zinc-nickel-plated steel valves. Valves with Buna-N rubber seals stand up to water, oil, fuel, and lubricants, so they work well in fuel gas systems and air lines. They meet ANSI standards for fuel gas systems and comply with the International Fuel Gas Code.
Fix lockable lever handles in place using a padlock (not included).
Valves that meet ASME B31 code requirements adhere to standards for pressure piping systems.
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.
- Valve Type: Ball
- For Use With: Air, Butane, Diesel Fuel, Natural Gas, Oil, Propane
- Pipe: Use Schedule 10, 40 steel
- Seal Material: Buna-N Rubber
- Specifications Met: ANSI LC4/CSA 6.32, ASME B31.1, ASME B31.3, ASME B31.9, International Fuel Gas Code
- Compatible With: Viega MegaPress
Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | For Max. Shackle Dia. | Each | |
Press Connect × Press Connect | |||||||
|---|---|---|---|---|---|---|---|
| 1/2 | 15 | 125 psi @ 100° F | -40° to 180° | 5 3/16" | 1/4" | 8632N36 | 000000 |
| 3/4 | 33 | 125 psi @ 100° F | -40° to 180° | 5 9/16" | 1/4" | 8632N37 | 000000 |
| 1 | 46 | 125 psi @ 100° F | -40° to 180° | 6 1/4" | 1/4" | 8632N38 | 000000 |
| 1 1/4 | 93 | 125 psi @ 100° F | -40° to 180° | 7 1/2" | 1/4" | 8632N39 | 000000 |
| 1 1/2 | 124 | 125 psi @ 100° F | -40° to 180° | 7 15/16" | 1/4" | 8632N41 | 000000 |
| 2 | 246 | 125 psi @ 100° F | -40° to 180° | 8 11/16" | 1/4" | 8632N42 | 000000 |
Quick-Disconnect Hose Couplings for Natural and LP Gas
 |  3/8 Coupling Size |  1/2 Coupling Size |  3/4 Coupling Size |
 1 Coupling Size |  1 1/4 Coupling Size |
Use these couplings when you need frequent access to a gas line. A complete coupling consists of a plug and a socket (sold separately or in a set) that connect and disconnect quickly. All of the natural and LP gas plugs are compatible with any of the natural and LP gas sockets of the same coupling size, regardless of the pipe size. Plugs and sockets are brass for good corrosion resistance. These couplings are rated ANSI Z21.41/CSA 6.9 for use with gas fuel appliances. CSA-US and CSA Certified, they also meet U.S. and Canadian safety standards.
Plugs are also known as nipples. They have a heat-sensitive fuse that will stop gas flow in the event of a fire.
Sockets have a shut-off valve that stops the flow when the coupling is separated, so gas won’t leak from the line. They are sleeve-lock style. To connect, slide back the sleeve on the socket, insert the plug, and release the sleeve. To disconnect, slide back the sleeve and pull out the plug.
NPTF (Dryseal) threads are compatible with NPT threads.
When couplings are not connected, add dust caps and plugs to keep contaminants out of your gas line.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
Warning: Stop the flow before you disconnect the line.
- Maximum Pressure: 0.5 psi @ 72° F
- Temperature Range: -40° to 200° F
- Specifications Met: ANSI Z21.41/CSA 6.9, CSA Certified, CSA-US Certified
- Maximum Pressure: 0.5 psi @ 72° F
- Temperature Range: -40° to 200° F
- Specifications Met: ANSI Z21.41/CSA 6.9, CSA Certified, CSA-US Certified
