These are hydrants of which water intake structure is below ground in compressed water network and cover is located above ground. Hydrant consists of Shaft which controls hydrant valve, cast parts which form housing and hose connections . Open and close operations for hydrant are made by controlling shaft by key. Underground fire hydrants are used for providing water for fire brigade in factories, warehouses, industrial plants, around of building, forest area which are sensitive against fire and residence areas.
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