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Product Description:

We make different styles of indoor hydrant, landing hydrant, underground hydrant,etc.

1. Item: SNJ 65

2. Type:SN50,SN65

3. Strength test pressure:2.4mpa

4. The indoor fire hydrant is a fixed indoor fire-fighting equipment in factories, public buildings, warehouse,etc.


Indoor fire hydrant is the connecter in the water piping network, including one valve with single outlet, One Valve with double outlet and double valve with double outlet etc. It's used to offer assistance to control the fire.

Rated working pressure:16 Bar

Strength test pressure:24Bar

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A hose is attached to the fire hydrant, then the valve is opened to provide a powerful flow of water, on the order of 350 kPa (50 lbf/in²) (this pressure varies according to region and depends on various factors including the size and location of the attached water main). This hose can be further attached to a fire engine, which can then use a powerful pump to boost the water pressure and possibly split it into multiple streams. The hose may be connected with a threaded connection, instantaneous "quick" connector or a Storz connector. Care should be taken not to open or close a fire hydrant too quickly, as this can create a water hammer which can damage nearby pipes and equipment. The water inside a charged hoseline causes it to be very heavy and high water pressure causes it to be stiff and unable to make a tight turn while pressurized.  


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Q:What are the general components of hydrant water supply system?
System security device. Including: fire valve, roof hydrant, etc..
Q:What is the diameter of a fire hydrant?
For fire hydrant diameter, minimum pipe diameter 100, minimum static pressure 0.07MPA, over 100 meters building minimum static pressure 0.15MPA. Fire hose interface specifications: DN65, DN50, interface with the hose of the same size; fire pump combination device body pipeline specifications: DN100, DN150, and the hose interface specifications for DN100 and DN150.
Q:What's the meaning of the outdoor ground hydrant type 100?
Type 100 refers to the inlet bore of 100.Hydrants, officially called fire hydrants, are a type of fixed fire fighting facilities, which control fuel, insulate fire and eliminate fire. Indoor fire hydrant and outdoor hydrant.
Q:What are the units of fire hydrants?
Hydrants, officially called fire hydrants, are a type of fixed fire fighting facilities, which control fuel, insulate fire and eliminate fire.
Q:Do fire hydrants need to be installed in roof test?
According to the location of the case, the design institute decided whether to use fire hydrant box protection, such as in the roof fire water tank room, no box, in the roof aisle should generally set box protection.
Q:How can fire water tank be connected with fire hydrant and spray pipe?
Fire hydrant system only need to check out from the water tank after the check valve access to the top of the fire hydrant ring pipe on the line, the sprinkler system need to water access to the alarm valve before the spray ring pipe. Considering the hydraulic pressure, it is possible to increase the voltage stabilizing equipment
Q:How is the enriched water column defined by a fire hydrant?
The effective range of fire water flow is usually expressed in a full water column. The full water column of a water gun is the jet from the exit of the nozzle, up to 90% of the total jet flow through the diameter of the 38cm circle, and the length of the dense, non dispersed jet. The experimental data statistics, radiant heat fire firefighters that can not close the ignition point, therefore, from the gun nozzle flow, should have sufficient range to ensure the fire flow required to reach. When the length of the water column of the water gun is too large, the counterforce of the jet will make it impossible for fire fighters to grasp the water cannon and extinguish the fire, so that the length of the water column should not be larger than 15m. All types of buildings require water cannons to enrich the length of the water column, and can be chosen according to the table when they are designed.
Q:Fire hydrant, cast iron welding, any use?
Change the chemical composition of the weld, adding C, Si and other elements into the electrode;
Q:How many meters is the standard requirement for fire hydrant test firing distance?
More than 100m of high-rise civil buildings, the roof room test bolt test distance is not less than 13m; less than 100m civil buildings, roof test room test bolt distance is not less than 10m.
Q:How many fire hydrants can the fire hydrant supervisor take with a diameter of 100?
Specification no specific provisions stipulated by the competent number but the lowest pressure minimum diameter is 100 0.07MPA, 100 meters over the construction of minimum static pressure 0.15MPA, fire hydrant ring connection number is so general secondary key is pressure, because all the fire hydrant can not be used simultaneously.

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