I. Structure and use
The SN series indoor fire hydrant is a product designed according to GB3445-2005 "indoor fire hydrant" standard. It is a valved interface for indoor pipe network to supply water to the fire site. It is usually installed in the fire hydrant box and is used with fire hose and fire water gun. . It is easy to use, fast, and efficient. Indoor fixed fire protection facilities for factory warehouses, high-rise buildings, public buildings and ships. SNW65-III decompression regulator type fire hydrant can effectively reduce the pressure and flow of the bolt. It can automatically adjust when the pipe network fluctuates and maintain the pressure stability. When the inlet pressure is 0.4-1.6Mpa, the outlet pressure is maintained at 0.3Mpa. The flow rate is greater than 5L/S.
Second, the working principle
Turn the handwheel and drive the valve flap through the valve stem. Turn clockwise to close and counterclockwise to open.
Third, the main structure
Fourth, the main specifications and performance parameters
1. Main specifications
Fifth, the method of use
The indoor fire hydrant is installed in the fire cabinet of the building's obvious location, and is used in conjunction with the fire hose fire hose. When there is a fire, quickly open the fire hydrant box, take out the water belt, water gun, connect one end of the water belt to the fire hydrant, and connect the other end to the water gun. Then the fire hydrant hand wheel is opened in the direction of opening, which can spray water to extinguish the fire. .
Six, installation requirements
1. The installation unit should have a qualification certificate and can be installed according to the requirements of the Water Supply and Drainage Standards Atlas.
2. When installing, pay attention to the direction of the water outlet so that it is convenient to use the water hose when it is used, and the water is unblocked. It is best to pre-connect the water gun, water hose and indoor fire hydrant to facilitate rapid water discharge when extinguishing fire.
3. The indoor fire hydrant is usually closed. After the installation is completed, the hydraulic pressure test is carried out according to the regulations. The hydraulic pressure test pressure is 2.4 MPa.
Seven, maintenance
1. Indoor fire hydrants should be protected from rain and collision and heavy pressure during transportation and handling.
2. The indoor fire hydrant should be stored in a dry and ventilated room to prevent moisture, not allowed to be inverted, and not allowed to contact corrosive gases.
3. Always check whether the indoor fire hydrant is intact, whether there is rust, water leakage, and whether the interface gasket is intact.
4. The valve stem should be filled with lubricating oil to prevent the screw from rusting.
5. Regularly conduct water discharge inspection to ensure that it can be opened freely during emergency and does not affect fire fighting.