Product introduction
Ground fire hydrant is fire equipment with reliable performance, simple operation and fast opening and closing. It has the function of automatically draining the remain water in the bolt body, freeze-proofing (according to user’s demand) , easy and quick to switch. It can be installed in the city water network and be the main water supply facilities for fire brigade to extinguish fire. It will be applicable to towns, streets, factories, warehouses, offices, schools, hospitals and the key area of the oilcan zone & oil pipe in all kinds of petrochemical industry, oil handling terminal and wharf which are the mainly fireproofing area. It can be also applicable to the specific fire-fighting pipelines of municipal administration and environmental protection. It is easy to use, fast and has high efficient.
Ground fire hydrant is mainly composed of body, valve, elbow, automatic drainage device, guide rod, valve flap, interface etc. It has compact structure, attractive appearance. The exposed part of the ground is coated with red alkyd enamel, buried part of the ground is coated with black asphalt varnishes. It can be applicable to regions with different climatic conditions.
Main component performance
1、Self-relief valve: Achieve to seal water and drain away water automatically according to the water pressure data in the bolt body. When the fire hydrant is in normal use (full opening state) and water pressure is not less than 0.1MPa then the device will be closed automatically. After the fire hydrant is closed self-relief valve will be opened and remained water in the body will be drained away.
2、Dual valve flap adjustment: It is utilizing big and small regulating valves. In the preliminary adjustment period controlling the small regulating valve’s short stroke and small pressure regulation to make the chamber of the fire hydrant filled with water fully or partially. When adjusts big regulating valve a minimal force on the fire hydrant can open the adjustment valve because the regulating valve’s upper water pressure is nearly equal to the lower water pressure. Lightweight, fast opening and adjustment of fire hydrant will be achieved.
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