Aluminium locking plug with chain DN65

The symmetrical coupling, commonly known as a « fire brigade coupling », is a mechanical device for connecting two hoses. This system is used for transferring liquids or powders in the chemical, petrochemical and food industries, in irrigation and in firefighting. The two hoses to be connected are each fitted with a half-coupling.

A half-coupling consists of a body with a groove at the front housing the sealing gasket, two half-shells or jaws, a freely rotating locking ring fitted with the ramps used for locking, and a retaining ring holding the locking ring in position.

Complies with French standard NF E 29-572

Body: Aluminium
Standard sealing gasket: Black NBR (on request: EPDM, FPM (VITON type), white PTFE (TEFLON type))
Locking ring retaining ring: galvanised steel