The 380 series coupling and plug have a double shut off safety lock system for use with breathing air SCBA systems. To disconnect, the plug must first be pushed further into the coupling before it can be unlocked to prevent unintentional disconnection.
Advantages
Double handed operation safety feature
High flow low pressure drop
Lightweight aluminium
Working Temperature (Depending on Medium):
-40°C to 130°C (EPDM)