Breathing Air Products

Couplings & Nipples

In the field of breathing air application there are no compromises to be made regarding quality and safety. CEJN has extra stringent tests to ensure that the high quality demanded is achieved. CEJN couplings and nipples for breathing air are thoroughly examined and tested individually, this to guarantee that each coupling and nipple that leaves our production is of the highest quality.
  • Series 141

    DN 2.5 mm. Air fllow capacity of 3.0 CFM (86 l/min) and water flow capacity of 0.9 GPM (3.5 l/min). Max working pressure 150 PSI (10 bar). The series is made of chrome-plated brass and suitable for compressed air, fluid and vacuum applications.

    Read more

  • Series 221

    DN 5.0 mm (3/16"). Air flow capacity of 20.5 CFM (580 l/min). Max working pressure 508 PSI (35 bar). Made of chrome-plated brass with NBR seal.

    Read more

  • Series 340

    DN 6.2 mm (1/4"). Flow capacity of 700 l/min (24.7 CFM). Max working pressure 508 PSI (35 bar) . Made of Stainless steel. The automatic safety-locking feature prevents unintentional disconnection.

    Read more

  • Series 341

    DN 7.4 mm(9/32"). Flow capacity of 68.8 CFM (1950 l/min). Max working pressure 508 PSI (35 bar). Made of nickel-plated brass with NBR seals. Ideal for cushion inflation and diving applications.

    Read more

  • Series 342

    DN 7.4 mm (9/32"). Flow capacity of 68.8 CFM (1950 l/min). Max working pressure 508 PSI (35 bar). Made of zinc-plated steel/brass. The automatic safety-locking feature prevents unintentional disconnection.

    Read more

  • Series 344

    DN 7.4 mm (9/32"). Flow capacity of 68.8 CFM (1950 l/min). Max working pressure 508 PSI (35 bar). Made of nickel-plated brass with NBR seals. Primarily for breathing air firefighting applications, but is also well suited for diving equipment.

    Read more

  • Series 345

    DN 6.2 mm (1/4"). Flow capacity of 38.8 CFM (1100 l/min). Max working pressure 508 PSI (35 bar). Made of nickel-plated brass with NBR seals. Well-suited for breathing air diving applications and for applications that demand a closed system when disconnected, such as surface air diving (hookah).

    Read more

  • Series 346

    DN 7.0 mm (9/32"). Flow capacity of 28.2 CFM (800 l/min). Max working pressure 508 PSI (35 bar). Made of stainless steel (AISI 316) with NBR seals. Ideal choice for applications in tough environments.

    Read more

  • Series 347

    DN 6.2 mm (1/4"). Flow capacity of 38.8 CFM (1100 l/min). Max working pressure 508 PSI (35 bar). Made of nickel-plated brass with NBR seals. The nipple is non-interchangeable with other CEJN series couplings making it useful in applications with multiple access points for different media.

    Read more

  • Series 348

    DN 4.1 mm 5/32"). Flow capacity of 22.9 CFM (650 l/min). Max working pressure 145 PSI (10 bar). Made of nickel-plated brass/stainless steel with EPDM seals. Well-suited for fire-fighting applications.

    Read more

  • Series 441

    DN 10.4 mm (13/32"). Flow capacity of 139.4 CFM (3950 l/min). Max working pressure 508 PSI (35 bar). Made of nickel-plated brass with NBR seals. Well-suited for air cushion inflation and breathing air diving applications in which extra high airflow is required.

    Read more

  • Series 442

    DN 10.4 mm (13/32"). Flow capacity of 140.0 CFM (3950 l/min). Max working pressure 508 PSI (35 bar). Made of zinc-plated brass with NBR seals. Well-suited for large supply lines for portable equipment with multiple air outlets.

    Read more