What are fire hose couplings called?

National Hose thread
National Hose thread (NH), also known as National Standard Thread (NST). It is the most common type of fire hose coupling used in the United States. The male and female straight (non-tapered) threads screw together and the connection is sealed with a gasket.

How are couplings attached to fire hose?

The coupling has threading on each end, one female end and one male end, allowing the hose to connect with another hose, tap, or other water source. In order to attach the two threaded devices together, several factors must be considered, such as size, gender, and thread standard.

How do fire hose nozzles work?

Fog nozzles produce a cone-shaped stream of small water droplets. These droplets can more easily be converted into steam, which takes heat from the surrounding air and can even be used to push hot air out of a room. Straight streams discharge water in the shape of a column.

What is Fireman’s nozzle?

Fireman’s lever provides easy pull down/pull up adjustable water flow control. The adjustable tip enables you to adjust the spray pattern from a fine mist to a heavy stream. Designed with heavy-duty metal construction for extra strength and durability. The ergonomic metal pistol grip provides versatility and comfort.

What are two types of couplings used in fire service?

There are three types of hose couplings, including threaded couplings, storz-type couplings, and non-symmetrical quick connect couplings. Threaded couplings are one of the commonly used in the fire service.

Which of the following are the most commonly used types of fire hose couplings?

~the most common fire hose couplings metals are brass and aluminum.

How many types of couplings use in hose fittings?

What are the different types of nozzles?

Nozzle

• Nozzle.
• The Nozzle Tip is one of the most important and least expensive part of a spraying system. Adjustable nozzle.
• Double swirl spray nozzle.
• Selecting a spray nozzle.
• Hollow cone nozzles-Disc and core type.
• Flat fan nozzles.
• Floodjet nozzles.
• Adjustable nozzles.

What are the types of fire nozzles?

The Different Types of Fire Hose Nozzles

• Smooth-Bore Nozzles. Smooth-bore nozzles, a type of manual nozzle, have a simple, cylindrical design that doesn’t consist of any internal parts to facilitate the control of gallonage or pressure.
• Constant Gallonage Spray Nozzles.
• Automatic Spray Nozzles.

Where are Gilmour nozzles made?

Excelsior Springs, Missouri
Other Gilmour firsts include the original clamp-style hose repair, the exceptionally adjustable Pattern Master® sprinklers, Select-A-Spray® nozzles, no-pre-mix sprayers and rotor sprinklers with multi-jet nozzles. Gilmour has been manufacturing hoses at our plant in Excelsior Springs, Missouri, since the 1950s.

What is the difference between NPSH and NST?

NST also goes by the initials NH or National Hose. It can even be referred to as NHT or National Hose Thread but NST or NH is more common these days. Fire hoses with National Pipe Straight Hose Thread (NPSH) has the same threads per inch as National Pipe Thread (NPT) but the threads do not taper.