Changchun electric explosion-proof plastic butterfly valve valve too tight how to solve? Because the valve seal adopts cam type preference structure, when the valve is open, the ball quickly disengages from the sealing surface of the valve seat. When the valve is closed, the ball quickly fits with the sealing surface of the valve seat. Then reach the intention of small opening torque and tight sealing
、 Finally, of course, the temperature of the working environment of the pneumatic control valve should be between - 30 ° C and 60 ° C, and the relative humidity should not exceed 95%. However, straight pipe sections are required at the front and back of the control valve, and their length should not be less than 10 times the pipe diameter, in case the straight pipe section of the valve is too short, which will eventually affect the flow characteristics.