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Depending on how you plan to use your fire hose

Update:27-07-2022
Depending on how you plan to use your fire hose, you may have to select an appropriate fitting. There are several different types of fire hose couplings available. In this article, we will discuss different types of couplings including GEKA coupling, SFS coupling, and Hose link. To make your decision easier, please read our comprehensive guide to fire hose couplings. Here, we've included some of the most important features to consider when choosing a fire hose coupling.
A  coupling is a unique fire hose fitting solution that connects two hoses with interlocking hooks and flanges. It has been around since 1882, and is still used by fire brigades all over the world. Its superior construction and high-quality components make it a top choice for a wide variety of fire hose applications. Here's a closer look at what makes Storz couplings so great:
GEKA couplings are a type of sexless quarter-turn bayonet fire hose couplings that feature a domed center and a flat outer ring. The coupling features a 40 mm distance between the claws. Based on the Giersberg fire extinguisher coupling, the GEKA coupler was invented by Julius Oehler in the late 1920s. New Zealand uses GEKA couplings for their wildfire fighting.
SFS (standard thread standard) is a thread standard for fire hose couplings. Fire hose couplings have a female and male coupling that are stamped on them with their initials. The thread standard can also be determined by measuring the outside diameter of the male coupling or hose. If a fire department does not provide this information, they can ask a local fire department for guidance.
A hose coupling is a connector on the end of a hose that connects it to another hos or a hose appliance, such as an irrigation sprinkler. Hose couplings are usually made from steel, brass, stainless steel, or aluminium, although plastic ones are also available. Hose couplings are important for various purposes and are often overlooked. Below are some common types of couplings. The following describes each type.
A BS336 coupler for a fire hose fitting is the most suitable coupling for use in the fire service. These couplings are made of brass or gunmetal and conform to BS336 standards. A BS336 coupler for fire hose fitting should have a 'tight seal' when water is introduced from the female end. A coupler that is not correctly installed will not form a water tight seal and could potentially leak at low pressure.
A sexless coupling is similar to a quarter turn coupling, which is often used to connect fire hose to fire hydrants. A quarter turn coupling features locks on both the outside and inside of the coupling. Also known as the National Hose (NH), this coupling is commonly used in fire departments. The Guillemin coupling is made of brass, stainless steel, polypropylene, and aluminum.
Before purchasing a hose reel, determine which hose fitting is right for the application. Usually, the hose coupling has a stamp with the initials "NPSH" or "NPT" and will seat on any female threads. If it does not, contact the local fire department for help. Counting the number of threads per inch and measuring the outside diameter of the male coupling are two tricky procedures. Regardless of which one you choose, you should measure the outside diameter of the male coupling and male threads to ensure the proper connection.

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