Breathing Air Products, Couplings & Nipples

Series 342

  • Automatic safety-locking feature
  • Extremely high flow capacity
  • One-hand operated

Series 342 coupling 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, as well as anti-hose whip nipples. The automatic safety-locking feature prevents unintentional disconnection.

Series 342
Technical data
Nominal flow diameter: 7.4 mm (9/32")
Air flow: 1950 l/min (68.8 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).

Couplings Part No. Connection Length Diameter Hexagon
Hose connection 10 342 10021034210026.3 mm (1/4")69.524.419
 10 342 10031034210038 mm (5/16")7124.419
 10 342 100410342100410 mm (3/8")71.524.419
 10 342 100510342100513 mm (1/2")69.524.419
Male thread 10 342 1152103421152R 1/4"64.524.420
 10 342 1154103421154R 3/8"62.524.420
 10 342 1155103421155R 1/2"5725.422
 10 342 1452103421452NPT 1/4"63.524.420
 10 342 1454103421454NPT 3/8"61.524.420
 10 342 1455103421455NPT 1/2"5625.422
Female thread 10 342 1202103421202G 1/4"58.524.420
 10 342 1204103421204G 3/8"61.524.420
 10 342 1205103421205G 1/2"6128.925
 10 342 1402103421402NPT 1/4"60.524.420
 10 342 1404103421404NPT 3/8"60.525.422
Stream-Line 10 342 10601034210606.5 x 10 mm65.524.420
 10 342 10621034210628 x 12 mm68.524.420


Nipples Part No. Connection Length Diameter Hexagon
Hose connection 10 342 50021034250026.3 mm (1/4")4713-
 10 342 500410342500410 mm (3/8")49.514-
 10 342 500510342500513 mm (1/2")5017-
Male thread 10 342 5152103425152R 1/4"4616.214
 10 342 5154103425154R 3/8"4619.617
 10 342 5155103425155R 1/2"5225.422
 10 342 5452103425452NPT 1/4"---
 10 342 5454103425454NPT 3/8"43.719.617
 10 342 5455103425455NPT 3/8"50.525.422
 10 342 5556103425556M16 x 1.54321.919
Female thread 10 342 5202103425202G 1/4"4219.617
 10 342 5204103425204G 3/8"--HEX 20
 10 342 5205103425205G 1/2"47.727.724
 10 342 5402103425402NPT 1/4"41.519.617
 10 342 5404103425404NPT 3/8"43.223.120
Stream-Line 10 342 50601034250606.5 x 10 mm4918.516
 10 342 50621034250628 x 12 mm5221.919


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.

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