co2 carbon steel

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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



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 pressuriz

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Q:Who knows how the fire hydrant is overdue?.
It's available on the day, free of charge!
Q:What's the difference between fire hydrant and fire hydrant box?
Fire hydrant is mainly outdoors, no water hose, is convenient for firefighters in the supply of fire engines or water supply or fire engines can not enter the area when the facilities used.
Q:The hydrant is leaking when water pressure is small. Is it normal?
To see which side leakage, if a drainage valve at the lower end of the drain, it should be with the pressure, but if the valve is fully closed die will not leak
Q:What's the size of the fire hydrant box?
The size of the firebox to determine the standard fire according to the requirements of design and installation. Common specifications: (unit: mm) 1, Ming loaded single bolt box =800*650*240;
Q:Fire hydrant can not drink water?
Can not drink, not up to the hygiene standards, do not drink, municipal fire hydrant is connected to municipal tap water, but the building and building fire hydrant is through the fire pool, fire pump and fire pipeline without sterilization, it is best not to drink, and do not use non emergency fire hydrant,
Q:How do you read the pressure meter on the water test device at the end of the fire hydrant?
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. The fire fighting system includes outdoor fire hydrant system, indoor fire hydrant system, fire extinguisher system, and some automatic sprinkler system, water gun system, gas fire extinguishing system, fire detection system, water mist system and so on.
Q:What's the exact size of the hydrant?
Size 1500*700*240, the box includes an indoor fire hydrant, a QZ19 fire water gun, a fire waterproof belt, a plate, a pump button, a dry powder extinguishing three; iron plate thickness of 1.2mm;
Q:Why are fire hydrants equipped with fog nozzles?
Dust prevention methods are: to strengthen ventilation measures to reduce dust concentration; rain system or water mist system; use anti-static floor; use no protruding floor, easy to clean the dust on the floor.
Q:How do hydrants protect against frost?
In the design of fire fighting pipe network, the depth of buried soil can be properly increased and ground temperature insulation (used for underground hydrant) is used.
Q:Maintenance requirements for outdoor fire hydrants
Cold area fire pool should be antifreeze measures, such as on the pond covered with soil insulation, manholes and water intake, double insulation manhole cover, etc..The fire pool has set up independently or with other common pool, when sharing to ensure fire water, fire water pool fire water in peacetime should not be used as he used to, therefore, fire water and other water use by the fire pool, measures should be taken to prevent the fire with water as he used. The following measures may be adopted in general:1. other water outlet pipes are placed on the highest fire water level of the shared pool.2. fire water and other water are separated from the shared pool and the outlet pipes are installed respectively.3. other water outlet pipe adopts siphon form, leaving the air hole at the highest fire water level. 7.3.7 basic provisions are retained in this clause. The types of outdoor fire hydrant are floor type, underground type and wall type.The ground type outdoor fire hydrant is exposed above the ground, and has the advantages of compact structure, obvious sign, convenient searching and convenient use and maintenance, but is not favorable for preventing freezing, and also affects the appearance.The underground fire hydrant can be buried in the ground according to the requirement of the frozen soil layer to prevent frost, and it does not affect the appearance, but it is inconvenient to find.Wall type outdoor fire hydrant installed on exterior wall.

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