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Types of Hose Couplings

4/30/2013 3:20:04 PM | by Anonymous

Hose Couplings

A hose coupling is something which you connect with on the end of the hose to connect or couple it with a tap or another hose or any hosing appliance like an irrigation sprinkler. A hose is a flexible, long pipe made up of plastic or rubber. Water is directed through a hose in order to accomplish certain activities such as cleaning cars, watering gardens or putting out fires. Hose couplings are usually made up of stainless steel, steel, brass, plastic or aluminium. Brass hose couplings make it possible to connect a hose with another hose or with a type of instrument or appliance.


A hose coupling may be designed in many standard patterns. Selecting the correct hose coupling normally depends on the types of hoses involved coupled with their intended use.


In various instances, hose couplings are designed to make a seal that is both watertight and airtight. This makes the appliance especially useful when the hoses are used to transport gases or liquids of some type. Certain designs use either female or male thread designs while the rest are classified as sexless hose couplings.


The Storz coupling is known as one of the more common types of hose couplings. The composition of this particular coupling would need little effort to connect. This is due to it requiring no more than lining up the coupling with the device and locks in place with just an effortless quarter turn. Many municipal fire departments are known to choose the Storz coupling for their jobs as the mechanisms make it possible to swiftly attach a fire hose to a hydrant when attempting to bring a fire under control.


Another version of the Storz coupling is called the Nakajima. This method of coupling also connects with the simple quarter turn. The difference in this instance is that these types of hose couplers also come with a locking device on the exterior. The lock can be especially beneficial when attempting to connect the hose to machinery which will move liquid and other agents through the hose at high pressures.


The Barcelona hose coupling is commonly used in Spain, for usage with fire trucks as well as with local water systems when needed. This arrangement also makes use of an amalgamation of female and male threads and it must be screwed into place. In the case of France, French fire fighters are more inclined to use a hose coupling configuration known as the Gulliemen Symmetrical Clutch. As with the Nakajima and Storz designs, this type of coupling also gets connected with a simple quarter turn. Two lumps are found on the exterior of the clutch and this admits the device to adjust to the hook of each hose as the rings turn during usage.


Almost every type of hose couplings makes it condensed enough to allow the use of hose reels to retract and keep the hoses when not in use. Hose adapters or fittings can also make it possible to connect a coupling to an instrument which in other cases may not be compatible. Many fire fighters, as well as factories will include some of these adapters with the standard hose coupling they keep on hand.


The National Hose Coupling, also referred to as the NST, is commonly utilized with fire hoses. However, it requires more than a simple lock and turn process and the NST requires several complete turns to complete the connection. The forthright male and female thread combination makes it possible to swiftly screw the coupling into position. A gasket is used to strengthen the connection. This form of hose coupling works just as efficient as a nozzle holder as well as many other hose appliances.

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