System of Measurement System of Measurement |
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For Use With For Use With | Show |
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For Use With For Use With | Hide |
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Quick-Disconnect Component Quick-DisconnectComponent |
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Socket | Plug |
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Plug and Socket Set |
Quick-Disconnect Shape Quick-Disconnect Shape |
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Natural and LP Gas | Compressed Gas |
Connection Style Connection Style |
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Threaded |
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Quick Disconnect |
Flow Control Flow Control |
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![]() | With Shut-Off |
Type Type |
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Thread Size Thread Size |
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Socket Locking Type Socket Locking Type |
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Maximum Pressure Maximum Pressure |
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Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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Sleeve Material Sleeve Material |
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Specifications Met Specifications Met |
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Material Material |
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Shape Shape |
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![]() | Straight |
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Use these couplings to quickly link and unlink welding hoses, torches, and pressure regulators. They consist of a plug and socket that are sold together as a set of two—you’ll get one right-hand connection for oxygen and one left-hand connection for fuel gas. The connections are noninterchangeable and color coded so you can’t mix lines. The male threaded ends attach to threaded welding hose, and the female threaded ends attach to a torch or pressure regulator. To connect couplings, push the plug into the socket; the sleeve on the socket has a spring-loaded lock for gas-tight connections. To disconnect, pull back on the socket sleeve and twist to release the plug. The sockets have a shut-off valve that stops the flow when the coupling is separated so gas won’t leak from the line. The sockets also have a built-in check valve to prevent gas backflow. Couplings are also known as CGA (Compressed Gas Association) couplings. They are brass for good corrosion resistance.
Couplings with left-hand threads are identified with a notch in the nut.
Note: Couplings have a CGA number that corresponds to a specific type of gas. Make sure the CGA number of the coupling matches the CGA number of your tank and other system components.
Includes | Trade Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
One CGA 022 Coupling Adapter (Male Hose Plug × Female Torch Socket) One CGA 023 Coupling Adapter (Male Hose Plug × Female Torch Socket) | B | 9/16"-18 | UN/UNF (CGA) | Right Hand (CGA 022), Left Hand (CGA 023) | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 000000 |
Includes | Trade Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
One CGA 022 Coupling Adapter (Male Hose Plug × Female Regulator Socket) One CGA 023 Coupling Adapter (Male Hose Plug × Female Regulator Socket) | B | 9/16"-18 | UN/UNF (CGA) | Right Hand (CGA 022), Left Hand (CGA 023) | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 000000 |
Includes | Trade Size | Thread Size | Thread Type | Thread Direction | For Use With | Each | |
One CGA 022 Coupling Adapter (Male Hose Plug × Male Hose Socket) One CGA 023 Coupling Adapter (Male Hose Plug × Male Hose Socket) | B | 9/16"-18 | UN/UNF (CGA) | Right Hand (CGA 022), Left Hand (CGA 023) | Acetylene, Butane, Fuel Gases, LP Gas, Natural Gas, Oxygen, Propane | 000000 | 000000 |
![]() | ![]() 3/8 Coupling Size | ![]() 1/2 Coupling Size |
![]() 3/4 Coupling Size | ![]() 1 Coupling Size |
Use these couplings when you need frequent access to a gas line. A complete coupling consists of a plug and a socket (both sold separately) 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.
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.
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.