FQS fire water cannon ball valve, fire ball valve switch, anti freezing fire ball valve, sealing and pressure resistant fire ball valve

Description :

　　Ball valve is a widely used valve equipment, which is widely used in various fields such as petroleum, chemical, power, metallurgy, and steel. Ball valves are mainly used on pipelines to cut off, distribute, and change the direction of medium flow. The opening and closing component of a ball valve is a sphere, which rotates 90 degrees around the axis of the valve shaft to achieve the purpose of opening and closing.

　　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.

　　Appearance and structural requirements

　　Appearance quality: The shell of the ball valve should be made of corrosion-resistant materials or undergo anti-corrosion treatment, and there should be no defects such as peeling or scratches.

　　Material: The valve body and valve cover should be made of materials with corrosion resistance not lower than ordinary cast iron, and the corrosion resistance of the valve seat should not be lower than bronze.

　　The valve seat and sealing ring can be made of materials such as polytetrafluoroethylene or nylon, and the corrosion resistance of the valve seat material should not be lower than that of the valve body material.

　　The size and tolerance of the O-ring rubber seal should comply with the provisions of GB/T3452.1.

　　The packing and gasket should be suitable within the operating temperature range of the fire ball valve. Any metal gasket should have at least the same corrosion resistance as the valve body.

　　Handwheels, handles, and handle seats should be made of steel, malleable iron, or ductile iron.

　　The corrosion resistance of the valve body drain plug material should not be lower than that of the valve body material.

AfterSalesService :

• FQS Fire Water Cannon Ball Valve