Product introduction
It is applicable to factories, offices, schools, public places and transport ships to extinguish fire. It is usually installed in the indoor fire hydrant box and used with the fire hose, fire control interface and water gun together. It can be connected with the water supply pipe network and the outlet is equipped with interface can be connected with fire hose quickly. When turns the hand wheel counterclockwise valve flap will be opened. Then through the fire hose the water in the pipe network will be entered into the water stream nozzle to extinguish fire. Indoor fire hydrant has various types and can meet different caliber installation and application requirements.
Working principle
Opening and closing of indoor fire hydrant is done by rotating the hand wheel to make the valve stem do straight reciprocating movement. When the sealing gasket compresses the valve seat tightly indoor fire hydrant will be in closed state. When in use , only to click the start direction on the hand wheel to rotate hand wheel then open the indoor fire hydrant to get water and extinguish fire.
1.Vacuum regulator type indoor fire hydrant: On the basis of the normal indoor fire hydrant increased the vacuum regulator device which is composed by decompression flap, compression spring, cover and others parts. No matter how pressure changes before the bolt it can keep the stability of outlet pressure and flow through vacuum regulator device to achieve the goal of reducing and sustaining pressure
2.Rotating type indoor fire hydrant : On the basis of the normal indoor fire hydrant increased a bolt which can make 360° level rotating around the center of the base
3.Rotating and vacuum regulator type indoor fire hydrant : On the basis of the normal indoor fire hydrant increased rotating and vacuum regulator device to have the dual functions of rotating, reducing and sustaining pressure
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