Hose coupling

Hose coupling

The hose coupling is the metal piece on the end of a hose to connect it to extra hose or hose appliances. It is usually made of steel or brass. The hose coupling comes in several different styles:

Storz coupling

A "quarter turn coupling", or "sexless coupling", commonly used to connect to fire hydrants, easy to connect, no particular male or female end, locks are on inside of coupling.

"See Storz."

Nakajima coupling

Another "quarter turn" or "sexless" coupling, similar to Storz coupling, but not used as often. Main difference between these and Storz are that this has locks on the outside.

NST coupling

Also known as National Hose (NH). The most common type of fire hose coupling. The male and female straight (non-tapered) threads screw together and the connection is sealed with a gasket.

Guillemin symmetrical clutch

The Guillemin symmetrical clutch is widely used in France. It is the coupling used by the french firefighters.

It can be fastened by hand, but it is also possible to use a tricoise wrench.It is also "quarter turn" and "sexless" (symmetrical).

Each end has a ring with two protuberances outside; when the ring turns, the protuberances lock to the hook of the other hose.

Barcelona coupling

It is the coupling used by the Spanish firefighters. It is the obligatory system in Spain for firefighting.

The male and female threads screw together.


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