Made of stainless steel, these couplings stand up to wet environments. Also known as luer lock couplings, they consist of a plug and socket (sold separately) that connect with a half turn. They have a compact body, so they’re easy to fit in tight spaces. Plugs and sockets are open-flow style, so there is no shut-off valve to stop the flow when the coupling is separated. They have a universal connection, so the plugs will connect to any of the sockets, regardless of the pipe or tube size.
303 stainless steel couplings have very good corrosion resistance. 316 stainless steel couplings have excellent corrosion resistance.
Note: For a complete coupling, order a plug and a socket.
Plugs, Barbed Tube
Temperature Range: 32° to 300° F
Tubing: Use with soft or firm (Durometer 35A-95A) polyurethane rubber, PVC Plastic or silicone rubber
Barbed plugs and sockets insert into tubing and secure with a clamp.
303 Stainless
Steel
316 Stainless
Steel
For Tube ID Max. Pressure Each Each
1/4"-5/16" 30 psi @ 72° F 5194K15 $22.60 5194K35 $24.52
Plugs, Male Threaded Pipe
Temperature Range: 32° to 300° F
303 Stainless
Steel
316 Stainless
Steel
Pipe
Size Thread
Size Max. Pressure Each Each
NPT Threads
1/8 __ 30 psi @ 72° F ______ __ 5194K44 $35.77
1/4 __ 30 psi @ 72° F ______ __ 5194K45 37.26
UN/UNF (SAE Straight) Threads
__ 10-32 30 psi @ 72° F ______ __ 5194K43 30.62
__ 1/4"-28 30 psi @ 72° F 5194K13 $20.80 5194K33 31.22
Plugs, Connector
Temperature Range: 32° to 300° F
Tubing: Use with soft or firm (Durometer 35A-95A) polyurethane rubber, PVC plastic or silicone rubber
303 Stainless
Steel
316 Stainless
Steel
Max. Pressure Each Each
30 psi @ 72° F 5194K11 $26.70 5194K31 $29.00
Plugs for Sockets
Temperature Range: 32° to 300° F
303 Stainless
Steel
316 Stainless
Steel
Max. Pressure Each Each
30 psi @ 72° F 5194K17 $21.70 5194K37 $22.98
Sockets, Barbed Tube
Temperature Range: 32° to 300° F
Tubing: Use with soft or firm (Durometer 35A-95A) polyurethane rubber, PVC plastic or silicone rubber
Barbed plugs and sockets insert into tubing and secure with a clamp.
303 Stainless
Steel
316 Stainless
Steel
For Tube ID Max. Pressure Each Each
1/16"-3/32" 30 psi @ 72° F 5194K21 $25.61 5194K51 $26.41
1/4"-5/16" 30 psi @ 72° F 5194K16 21.82 5194K36 23.23
Sockets, Male Threaded Pipe
Temperature Range: 32° to 300° F
303 Stainless
Steel
316 Stainless
Steel
Pipe
Size Thread
Size Thread
Pitch, mm Max. Pressure Each Each
NPT Threads
1/8 __ __ 30 psi @ 72° F ______ __ 5194K47 $36.12
1/4 __ __ 30 psi @ 72° F ______ __ 5194K48 36.86
Metric Threads
__ M6 1 30 psi @ 72° F 5194K22 $27.88 5194K52 28.66
UN/UNF (SAE Straight) Threads
__ 10-32 __ 30 psi @ 72° F ______ __ 5194K46 34.27
__ 1/4"-28 __ 30 psi @ 72° F 5194K14 21.95 5194K34 24.00
Sockets, Connector
Temperature Range: 32° to 300° F
Tubing: Use with soft or firm (Durometer 35A-95A) polyurethane rubber, PVC plastic or silicone rubber
303 Stainless
Steel
316 Stainless
Steel
Max. Pressure Each Each
30 psi @ 72° F 5194K12 $22.98 5194K32 $23.10
Caps for Plugs
Temperature Range: 32° to 300° F
316 Stainless
Steel
Max. Pressure Each
30 psi @ 72° F 5194K38 $23.12
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