The electric butterfly valve is a kind of field instrument product. If the staff wants to use it correctly, they should master its use methods and precautions. It also includes the cleaning and blowdown of product pipelines. In terms of working environment temperature, it is better for the staff to control the temperature within the range of minus 25 ℃ to 60 ℃. In addition, there are other considerations. 　　

Simple knowledge of pneumatic ball valve The ball of pneumatic ball valve is elastic. It relies on an elastic groove at the lower end of the inner wall of the ball. When the channel is closed, the wedge head on the valve stem can be used to make the whole ball expand and compress its valve seat to seal.