Double shut-off, release by traction rope
Description
A hose line which is used to convey hazardous media must have a predetermined breaking point. The latter prevents the escape of hazardous liquids or flammable gases in the event of unexpectedly occurring tensile forces. Usually, flange couplings screwed together with a tear-off bolt are used for this purpose. If this coupling has come off in an emergency, more effort will be required to reasssemble the connection; the manufacturer’s customer service must re-bolt the coupling.
Emergency separation function
Our double shut-off quick coupling with its de-coupling by traction rope offers a more cost-effective solution: A wire rope attached to the sliding sleeve of the coupling socket pulls it in the opening direction when pulling forces on the hose occur. The nipple located in the socket is unlocked, the valves of both coupling parts close. Only then does the nipple slide out of the sealing ring of the socket. After unlocking, both ends can be connected again by simply plugging them into each other; the coupling is immediately ready for use again. The wire rope length is so selected that the sliding sleeve of the socket moves in the opening direction before the hose tightens.