Gate valves and butterfly valves in the pipeline are used to play the role of switching, regulating flow. Of course, there is still a method in the selection process of butterfly valves and gate va...
Backflow preventer valves are an important component in any water system and are designed to prevent the dangerous and potentially harmful effects of backflow. As an important part of the plumbing ...
Overview
Valve is an important product in general machinery. It is installed on various pipes or devices to control the flow of medium by changing the channel area in the valve. Its functions are: ...
Soft seal butterfly valve is the butterfly valve mainly produced by TWS Valve, including Wafer Type butterfly valve, Lug Type butterfly valve, U-Type butterfly valve, Double flange butterfly valve ...
(1) The valve does not operate.
The fault phenomenon and its causes are as follows:
1. No source of gas.① The air source is not open, ② due to the water content of the air source ice in winter, res...
1. What is casting
The liquid metal is poured into a mold cavity with a shape suitable for the part, and after it solidifies, a part product with a certain shape, size and surface quality is obtain...