(2) The electric switch butterfly valve belongs to the field instrument, and the suitable working temperature should be in the range of - 25-60 degrees, and the relative humidity should not exceed 95%. If it is installed at high temperature or in the open air, cooling and waterproof measures should be taken. If there is a source, shockproof measures should be taken, or it can be far away from the source. 　　

The pneumatic ball valve for quick filling includes a pneumatic actuator and a valve body. The pneumatic actuator and the valve body of the product are connected through a connecting shaft. The pneumatic actuator of the product is equipped with a gas source inlet, a gas source outlet and an indicating contact. The valve body of the product is connected with the pipe socket interface through a nut. The valve body is equipped with a ball and an "O" ring inside the valve body There are two O-rings and they are located on the left and right sides of the ball. Polytetrachloride sealing filler is set between the "O" ring and the ball. The valve body of the product is made of plastic.