Plugs and sockets with a shut-off valve have a valve that stops the flow when the coupling is separated, so air won’t leak from the line. Those with a clamp-on barbed end insert into a plastic or rubber hose and secure with a clamp or a crimp-on hose ferrule.
Plugs are also known as nipples.
Sleeve-lock sockets connect by sliding back the sleeve on the socket, inserting the plug, and releasing the sleeve. To disconnect, slide the sleeve back and pull out the plug.
Zinc-plated steel is stronger and more durable than other metals. It has fair corrosion resistance, so it should be used primarily in dry environments.
Brass is softer than other metals, so it’s easier to thread together. It has good corrosion resistance.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
Plugs, Male Threaded Pipe
Maximum Pressure: 300 psi @ 72° F
Temperature Range: -40° to 240° F
Plug Tip
Coupling
Size Lg. Dia. Pipe
Size Thread
Type Flow
Control Each
Zinc-Plated Steel
1/4 3/4" 9/32" 1/8 NPT Open 91455K51 $4.95
1/4 3/4" 9/32" 1/4 NPT Open 91455K31 2.85
Plugs, Female Threaded Pipe
Maximum Pressure: 300 psi @ 72° F
Temperature Range: -40° to 240° F
Plug Tip
Coupling
Size Lg. Dia. Pipe
Size Thread
Type Flow
Control Each
Zinc-Plated Steel
1/4 3/4" 9/32" 1/8 NPT Open 91455K54 $4.47
1/4 3/4" 9/32" 1/4 NPT Open 91455K36 3.53
Plugs, Clamp-On Barbed End
Maximum Pressure: 300 psi @ 72° F
Temperature Range: -40° to 240° F
Plug Tip
Coupling
Size Lg. Dia. For
Hose ID Flow Control Each
Zinc-Plated Steel
1/4 3/4" 9/32" 1/4" With Shut-Off 91455K55 $8.14
Sleeve-Lock Sockets, Male Threaded Pipe
Maximum Pressure: 300 psi @ 72° F
Temperature Range: -40° to 240° F
For
Plug Tip
Coupling
Size Lg. Dia. Pipe
Size Thread
Type Flow Control Each
Zinc-Plated Steel
1/4 3/4" 9/32" 1/4 NPT With Shut-Off 91455K42 $12.52
Brass
1/4 3/4" 9/32" 1/8 NPT With Shut-Off 91455K52 23.38
1/4 3/4" 9/32" 1/4 NPT With Shut-Off 91455K74 19.97
1/4 3/4" 9/32" 3/8 NPT With Shut-Off 91455K57 20.28
Sleeve-Lock Sockets, Female Threaded Pipe
Maximum Pressure: 300 psi @ 72° F
Temperature Range: -40° to 240° F
For
Plug Tip
Coupling
Size Lg. Dia. Pipe
Size Thread
Type Flow Control Each
Zinc-Plated Steel
1/4 3/4" 9/32" 1/4 NPT With Shut-Off 91455K47 $11.18
Brass
1/4 3/4" 9/32" 1/8 NPT With Shut-Off 91455K53 25.46
1/4 3/4" 9/32" 1/4 NPT With Shut-Off 91455K73 20.01
1/4 3/4" 9/32" 3/8 NPT With Shut-Off 91455K56 20.72
Sleeve-Lock Sockets, Clamp-On Barbed End
Maximum Pressure: 300 psi @ 72° F
Temperature Range: -40° to 240° F
For
Plug Tip
Coupling
Size Lg. Dia. For
Hose ID Flow Control Each
Brass
1/4 3/4" 9/32" 1/4" With Shut-Off 91455K58 $20.78
1/4 3/4" 9/32" 3/8" With Shut-Off 91455K59 20.61
Sockets, Male Threaded Pipe
Maximum Pressure: 300 psi @ 72° F
Temperature Range: -40° to 240° F
For
Plug Tip
Coupling
Size Lg. Dia. Pipe
Size Thread
Type Flow Control Each
Brass
1/4 3/4" 9/32" 1/8 NPT With Shut-Off 91455K64 $21.06
1/4 3/4" 9/32" 1/4 NPT With Shut-Off 91455K65 18.74
1/4 3/4" 9/32" 3/8 NPT With Shut-Off 91455K66 19.18
Sockets, Female Threaded Pipe
Maximum Pressure: 300 psi @ 72° F
Temperature Range: -40° to 240° F
For
Plug Tip
Coupling
Size Lg. Dia. Pipe
Size Thread
Type Flow Control Each
Brass
1/4 3/4" 9/32" 1/4 NPT With Shut-Off 91455K62 $18.15
1/4 3/4" 9/32" 3/8 NPT With Shut-Off 91455K63 19.03
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