Users' questions

What is Storz coupling?

What is Storz coupling?

The Storz coupling is a type of standardized fittings connecting fire hoses, especially large diameter ones, to fire hydrants, pumps, and the inlets so that water can be supplied to fire sprinklers or standpipe systems.

How to connect Storz couplings?

How does a Storz Connection work? When opposing Storz couplings are pressed together, special hooks on each coupling insert into the slots in the flange of the other. Rotating the couplings in opposite directions until they’re tight (usually a quarter turn) causes the latches to engage.

How are Storz fittings measured?

Storz couplings can usually be assembled by hand. It is possible that these fire hose fittings may jam after it has been under pressure. If the coupling jams you could make use of a Storz wrench. You identify the Storz coupling size by measuring the distance between the two lugs, also called the Lug Distance.

What are Storz fittings?

Storz Coupling is a type of hose coupling that was designed in the year 1882. The Storz coupling facilitates connection with the use of interlocking hooks and flanges. These are a perfect solution to accompany your fire hose. It aids in a high-quality attachment.

What is a sexless coupling?

It is sometimes referred to as a sexless coupling, because rather than having a male and a female end connected by screw threads, either identical end can be joined to any other end of the same diameter. Because of this, Storz couplings are widely viewed as a safer alternative to using threaded couplings.

How does a Storz coupling work?

Storz coupling is a quick-release, symmetrical coupling. There is thus no difference between the male and the female coupling. This coupling has a gasket for sealing, and two claws which position into each groove of the other coupling, thus locking the two couplings. A half-turn rotation clamps the couplings together.

How do you measure a coupling?

For the female part of the coupling, (also known as the coupler) the size is obtained by measuring the diameter of the open end, or inside diameter (ID). For the male part of the coupling (adapter), the size is obtained by measuring the diameter of the adapter end or outside diameter (OD).

What is a Storz Adaptor?

Storz is a type of hose coupling invented by Carl August Guido Storz in 1882 and patented in Switzerland in 1890, and patented in the U.S. in 1893 that connects using interlocking hooks and flanges. Storz connectors are usually made of brass or aluminium.

What is a female coupling?

A female coupler is one-half of a two-piece device used to join cables, pipes, or hoses. Two-piece couplers consist of a male and female half and may be equipped with push-in or screw-down locking mechanism.

What are two types of hydrant connections?

For most intents and purposes, there are two types, wet and dry barrel hydrants, in addition to standpipes. These have a different structure and mechanism depending on the surrounding conditions.

What does coupling size mean?

Coupler Size. — Understand that coupling size is an industry designation, not the actual measured size. For parts with a female (sockets) coupler end the size is determined by measuring the open end (x) of the coupler. — For the male (plug) adapter the coupling size is determined by measuring the adapter/plug end (y).

How is a camlock coupling measured?