As we all know, indoor fire hydrants are the main facilities for fighting fires in buildings, which are usually installed in the fire hydrant box and used in conjunction with fire hoses and water guns and other equipmentOne of the most widespread firefighting facilitiesIt is widely used in the use of fire fighting because of its simplicity and reliable performance.
Indoor fire hydrant, 1) pressSpout typeIt can be divided into: single outlet and double outlet indoor fire hydrants;2) PressNumber of valvesIt can be divided into: single valve and double valve indoor fire hydrant;3) PressStructural formIt can be divided into: right-angle outlet type, 45° outlet type, rotary type, pressure reducing type, rotary pressure reducing type, pressure reducing and stabilizing type, rotary pressure reducing and stabilizing type, etc.
SN65 belongsSingle valveSingle outletStationaryThe outlet pipe diameter isdn65The indoor fire hydrant is the most widely used type, and for the construction and maintenance of this type of indoor fire hydrant, it is recommended as follows:
1) The valve of the fire hydrant should be clearly cast on the rim of the handwheel of the indoor fire hydrantSwitch directionThe diameter of the handwheel rim is not less than 120mm.
2) The material of the valve stem and nut of the indoor fire hydrant shall not be less thanLead brassMaterial, seat material is not less thanBrassMaterial.
3) Indoor fire hydrant valve discGasketsThe quality of the material should be qualified, not easy to age, and there should be no defects such as damage, wrinkles, scratches and other defects on the surface (the material should be asbestos rubber sheet, asbestos board, PTFE board, polyethylene board and other materials).
4) Under normal circumstances, the overall weighing weight of the valve body of the indoor fire hydrant should not be less than 3kg;Installed on the other side of the door shaft of the fire hydrant box, the height of the fire hydrant outlet (center line) from the ground is 11 meter, the direction of the water outlet should bedownor with a fire hydrant wall90° right angle
5) In the process of daily maintenance (inspection or annual water discharge test) management, it should be implemented according to the requirements of 1)-4) above, especiallySection) article, there was a corporate test office building over the weekend, there was a "due to indoor fire hydrants."The disc gasket is aging and leaking(Caused only.)The stabilizer pump operates frequently, start the pump signalNo feedbackfire control room).Flooding events".
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