Cejn 345 Breathing Air Coupling

SKU: C103451004
Regular price £52.55


This is a Cejn Series 345 breathing air quick release coupling, couplings are manufactured from zinc plated steel / brass and nipples are manufactured from hardened zinc plated steel. This range has a maximum working pressure of 35 bar with a flow capacity of 1100 l/min.  The couplings and nipples are valved which are closed when disconnected. These couplings are designed to prevent unintention disconnection, one hand to connect, and two hand to disconnect. Suitable for applications that demand a closed system when disconnected.


  • Nominal flow diameter is 6.2mm (1/4")
  • Flow Capacity is 1100 l/min (38.8 CFM) measured at 6 bar (87 psi) with a 0.5 bar (7 psi) pressure drop
  • Max working pressure 35 bar (507 psi)
  • Temperature range -30°C to +100°C (-4°F to +212°F)