Breathing Air Products, Couplings & Nipples

Series 442

  • One-hand operated
  • High flow capacity
  • Automatic safety locking feature


Series 442 couplings withstand extremely rough handling in extra tough applications. The series features a zinc-plated steel/brass construction with a locking sleeve made of hardened zinc-plated steel. The series offers a wide range of connections. The automatic safety locking feature prevents unintentional disconnection.

Series 442
Couplings Part No. Connection Length Diameter Hexagon
Hose connection 10 442 1003 1044210038 mm (5/16")80.52822
 10 442 1004 10442100410 mm (3/8")79.52822
 10 442 1005 10442100513 mm (1/2")782822
 10 442 1006 10442100616 mm (5/8")782822
 10 442 1007 10442100719 mm (3/4")772822
Male thread 10 442 1154 104421154R 3/8"70.52824
 10 442 1155 104421155R 1/2"732824
 10 442 1157 104421157R 3/4"63.531.227
 10 442 1455 104421455NPT 1/2"722824
 10 442 1457 104421457NPT 3/4"6031.227
Female thread 10 442 1204 104421204G 3/8"652824
 10 442 1205 104421205G 1/2"7028.925
 10 442 1207 104421207G 3/4"673732
 10 442 1404 104421404NPT 3/8"66.52824
 10 442 1405 104421405NPT 1/2"7028.925


Nipples Part No. Connection Length Diameter Hexagon
Hose connection 10 442 5005 10442500513 mm (1/2")5017-
 10 442 5006 10442500616 mm (5/8")52.521-
 10 442 5007 10442500719 mm (3/4")5324-
Male thread 10 442 5152 104425152R 1/4"43.819.617.0
 10 442 5154 104425154R 3/8"4719.617
 10 442 5155 104425155R 1/2"50.825.422
 10 442 5157 104425157R 3/4"5431.227
 10 442 5454 104425454NPT 3/8"4619.617
 10 442 5455 104425455NPT 1/2"51.825.422
Female thread 10 442 5204 104425204G 3/8"4323.120
 10 442 5205 104425205G 1/2"47.828.925
 10 442 5207 104425207G 3/4"50.53732
 10 442 5405 104425405NPT 1/2"47.828.925


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.
Technical data
Nominal flow diameter: 10.4 mm (13/32")
Air flow: 3950 l/min (139.4 CFM)
Max. working pressure: 35 bar (507 PSI)
Min. burst pressure: 140 bar (2030 PSI)
Temperature range: -30°C — +100°C (-22°F — +212°F)
Material coupling: Zinc-plated steel/brass
Material nipple: Hardened zinc-plated steel
Material seal: NBR

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

Air Flow
Pressure drop bar (PSI) Series 442 Flow l/min. (CFM)

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