2 Way Fire Hydrant Valve

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2 Way Fire Hydrant Valve

A 2 way fire hydrant valve is an emergency device that is usually installed in public places, such as hotels, shopping malls and office buildings. 2 Way Fire Hydrant Valve main function is to provide a reliable source of water in the event of a fire so that it can be extinguished. The following is the value provided by the fire hydrant.

‌ The production process of the fire hydrant ‌ mainly includes the following steps:

• ‌ Material preparation ‌ : First, a magnetic crane is used to send the recycled scrap steel and pig iron into a furnace where it is melted at a temperature of 1537°C. This step is to obtain a metal melt that can be used for casting.
• ‌ Mould-making ‌ : Workers press a two-part mold using a mixture of sand and adhesives. One part, called the outer mold, is used to cast the shape of a fire hydrant. The other part, called the mold core, is used to cast the internal shape.
• ‌ casting ‌ : An automatic machine places the mold core into each outer mold, and then pours the molten metal mixture through the pouring bucket into the gap between the outer mold and the mold core. Wait for the molten metal to cool and cure, and then send the mold into the drum to release the casting inside.
• ‌ assembly and painting ‌ : Drill holes and carve threads in the fire hydrant castings to facilitate subsequent assembly. Then spray it with a bold red paint. The next step is to assemble the internal parts of the hydrant, such as the valve assembly, which controls the water output of the hydrant. A series of rubber O-rings on the main valve prevents the hydrant from leaking when closed. Then the sprinkler head is partially installed on the top of the fire hydrant body, and the cover chain of the sprinkler head is fixed with the crimping tool. A torque wrench is then used to install the cast iron safety ring, which is used to separate the upper and lower parts of the hydrant. Next, connect the water to the fire hydrant and pressurize it to the normal urban water pressure to check for leakage.
• ‌ Test and installation ‌ : Finally, high pressure test is carried out to ensure the normal operation of the fire hydrant. After the test, the qualified fire hydrant can be installed in the residential community to escort the safety of people's lives and property.

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