Manual fire water cannon ball valve, two-way sealed fire ball valve, fire water cannon standard accessories

Description :

　　Shandong Dongyue Crane and Fire Equipment Manufacturing Co., Ltd. produces specialized ball valves for various fire monitors, with specifications and models of FQS80A, FQS80B, FQS80C, FQS65, and FQS80A/1.6. The fire monitor specialized ball valve is produced in accordance with the public safety industry standard GA79-94 "Performance Requirements and Experimental Methods for Fire Ball Valves" of the People's Republic of China, and is specifically designed for use with fire monitors. Its structural characteristics are: the connecting flange is a DN100 flange at the inlet and a DN80 flange at the outlet, with bidirectional sealing and a manual drain valve. When used in high-altitude areas in winter, the valve can be opened after being closed to drain the water inside the valve ball, thereby preventing the ball valve from freezing. Crack. The connection method can also be customized according to user requirements.

　　The FQS series fire water cannon ball valve produced by Shandong Dongyue Crane and Fire Equipment Manufacturing Co., Ltd. is a manual fire ball valve.

　　Fire ball valves should undergo pressure resistance tests according to regulations and be able to withstand a static water pressure of 4 times the rated working pressure for 5 minutes. There should be no visible leakage at the connection between the pressure bearing wall and the valve body and valve cover during the experiment, and there should be no structural damage to the shell (including the packing box and the connection between the valve body and valve cover).

　　Leakage at the packing is allowed under the pressure of the pressure test, but there should be no visible leakage when the test pressure drops to the sealing test pressure.

　　When conducting sealing performance tests on ball valves according to regulations, they should be able to withstand a hydrostatic pressure of twice the rated working pressure and maintain it for 5 minutes. The ball valve should have no visible leakage during the experiment.

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• Manual fire water cannon ball valve