Breathing Air Products, Couplings & Nipples

Series 228

  • One-hand operated to connect
  • Automatic safety locking feature
  • Lightweight


Series 228 is one-hand operated during connection and has an integrated safety feature that protects against unintentional disconnection. The high airflow rate makes it well suited for feeding hose between regulator and face mask. The nickel-plated brass construction makes it a perfect fit for use in damp/wet and corrosive environments.

Couplings Part No. Connection Length Diameter Hexagon
Hose connection 10 228 1032 1022810326.3 mm (1/4")46.41816
Male thread 10 228 1252 102281252G 1/4"42.319.617


Nipples Part No. Connection Length Diameter Hexagon
Hose Connection 10 228 5002 1022850026.3 mm (1/4")3712-
Male thread 10 228 5251 102285251G 1/8"291513


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: 5.0 mm (0.2")
Air flow: 565 l/min (19.9 CFM)
Max. working pressure: 8 bar (116 PSI)
Min. burst pressure: 32 bar (464 PSI)
Temperature range: -20°C — +80°C (-4°F — +176°F)
Material coupling: Nickel-plated brass
Material nipple: Nickel-plated brass
Material seal: NBR
Interchangeable with: -

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

Air Flow
Pressure drop, bar (PSI) Series 228 Flow, l/min. (CFM)

Available files for download

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