2 to 3 days
This is a Cejn Series 442 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 3950 l/min. This coupling is valved which is closed when disconnected. These couplings are designed to prevent unintention disconnection, one hand to connect, and two hand to disconnect.