The difference between hydrant and fire hydrant
The outdoor fire hydrant is mainly used to provide fire water for fire engines or to fire directly with fire hoses and water guns. It is a necessary fire protection and water supply facility for urban public buildings, industrial and mining enterprises and public places.
Two stage pressure relief fire hydrant is introduced. It introduces advanced technology, retains the advantages and basic functions of the common outdoor fire hydrant, and improves the key parts of it. It is more practical. Its performance is better than the traditional fire hydrant, which is characterized in that the water immediately the fire hydrant was severing as, not burst water phenomenon, does not affect the normal use of pipeline with other fire hydrant; and immediately repair the damaged parts; at the same time as in the traditional fire hydrant pressure 1.0MPa, emergency use, with open hands is not easy to open. Even twist the handle of the switch. The anti-collision hydrant can open and close quickly and flexibly under any circumstances.
The fire hydrant normally closed, the valve flap seals the water inlet; when used with a special wrench to open the valve, the water flowing into the municipal underground pipe from the water outlet and fire hydrant, fire truck into the suction pipe or directly into the water, water water or fire, after use, close the valve, the valve body by the water drain valve automatic exhaust.
