Selection of pneumatic butterfly valve for fan and its advantages and disadvantages, and the manufacturer of pneumatic butterfly valve reveals the secret? The application field of fan pneumatic butterfly valve gasket is more and more, but there are still many friends who do not know much about the selection method of fan ball valve pneumatic butterfly valve.
Shanghai Dongfeng Shock Absorber Manufacturing Co., Ltd. There are many types of fans. We generally select the appropriate fan ball valve and pneumatic butterfly valve for you according to the installation method, operating weight, bias, fan speed, and the number of pneumatic butterfly valves installed. The fan can be installed in two ways: hoisting and floor installation. The hoisting fan needs to select the pneumatic butterfly valve of hanging damping ball valve, and the floor installation requires the pneumatic butterfly valve of seat damping ball valve.
If it is a special case, it is in the case that the fan is heavily weighted: for example, a 400 kg fan needs to be installed with four pneumatic butterfly valves at the installation positions 1, 2, 3 and 4, of which the installation position 1 is relatively heavy, accounting for an estimated 35% of the total equipment weight. How to select pneumatic butterfly valve for ball valve. 1 position: 400 * 130% * 35%=182kg 2, 3, 4 positions: 400 * 130 * 65%/3=112kg fan speed determines the natural frequency of pneumatic butterfly valve for ball valve; The pneumatic butterfly valve of ball valve shall be selected according to the frequency ratio of at least three times. When the frequency is more than 600 r/min, the pneumatic butterfly valve with 25MM deflection ball valve can be selected. For fans with smaller frequency, ball valve and pneumatic butterfly valve with lower deflection shall be used.