Gas Products, Gas Couplings & Nipples

Series 172 - LP-Gas

  • Automatic safety locking feature
  • Double seal function for extra safety
  • Cross connection between series is impossible


Series 172 is specially designed for gas applications with a high flow valve. Like most other CEJN couplings, this series offers one-hand-operated connection, an integrated safety feature that prevents unintentional disconnection and a color coded (orange) locking sleeve and nipple. Couplings and nipples with female thread connection features an internal sealing cone. The part number for dust caps are 09 171 1000 for couplings and 09 171 1050 for nipples.



  • Conversion factors for the flow from air to other gases:
  • Acetylene = Air flow x 1,05
  • Oxygen gas = Air flow x 0,95
  • Nitrogen = Air flow x 1,02
  • Lp-gas = Air flow x 0,81
  • Town gas = Air flow x 1,49

Series 172 - LP-Gas
Coupling Part No. Connection A B C D E
  10 172 1001 1017210015 mm (3/16")576.72219-
 10 172 1002 1017210026.3 mm (1/4")6.376.72219-
 10 172 1003 1017210038 mm (5/16")878.72219-
 10 172 1004 10172100410 mm (3/8")1078.72219-
 10 172 1204 101721204G 3/8" left-hand tread-67.22219-


Nipple Part No. Connection A B C D E
  10 172 5001 1017250015 mm (3/16")560.520-34
 10 172 5002 1017250026.3 mm (1/4")6.360.520-34
 10 172 5003 1017250038 mm (5/16")863.520-37
 10 172 5004 10172500410 mm (3/8")106320-36.5
 10 172 5204 101725204G 3/8" left-hand tread-54.52219-


Check with an authorized CEJN distributor for availability and prices. Other connections and sealing material on request. Some part numbers may be subject to minimum order quantities. CEJN reserves the right to make changes without further notification. Thread connections are listed according to ISO Standards. All measurements are in mm.
Nominal flow diameter: 5 mm (")
Air flow: 720 l/min (25.4 CFM)
Max. working pressure: 10 bar (145 PSI)
Min. burst pressure: 40 bar (580 PSI)
Temperature range: -30°C — +100°C (-22°F — +212°F)
Material coupling: Yellow pickled brass/aluminium. Seal material NBR.
Material nipple: Yellow pickled brass/aluminium.

Flow capacity is measured at 6 bar (87 PSI) inlet pressure, and pressure drop at 0.5 bar (7 PSI).

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