A valve that opens and closes with the force of the medium flow to prevent the backflow of the medium is called a check valve. Check valves belong to the category of automatic valves.…

As one of the indispensable equipment in industrial production, valves may encounter many problems from selection to use to maintenance.…

The difference between rubber lined butterfly valve and rubber butterfly valve, the difference between rubber lined butterfly valve and plastic lined butterfly valve The rubber lining in rubber lined butterfly valve is to use high temperature to vulcanize rubber and valve body at high temperature, which has very high corrosion resistance.…

The closing position of the butterfly plate and the sealing surface is not properly matched…

Electric butterfly valve is a kind of regulating valve device used in automatic control system. The control principle of the valve is that it can lead and control the closing of the valve according to the signal of the power supply. Electric butterfly valve has many functions. It is a multi-functional valve that integrates check valve, control valve and shut-off valve.…

Electric soft-seal butterfly valves, pneumatic soft-seal butterfly valves, and hard-seal butterfly valves have begun to replace electric gate valves and globe valves in more and more occasions.…

Metal valves can be said to be the key component structures that are most prone to corrosion and failure in engineering equipment.…

The turnnion mounted ball valve has a floating valve seat. After being pressurized by the medium, the valve seat moves, so that the sealing ring is tightly pressed on the ball to ensure the sealing. Bearings are usually installed on the upper and lower shafts with the ball, and the operating torque is small, which is suitable for high-pressure and large-diameter valves.…