Zibo Weiheng Valve Co., Ltd., July 14th: Butterfly valves can be divided into metallurgical butterfly valve series and drainage butterfly valve series according to their uses. Below, Weiheng Valve summarizes the advantages, common problems, and maintenance methods of metallurgical series gas butterfly valves.

Advantages of gas butterfly valve:

1. Good sealing effect.

2. Long service life.

3. The phenomenon of no strict switch and inability to switch.

4. Reduce costs by approximately 30%.

5. Reduce expenditure on safety and environmental protection by 30% -40%.

Common faults of gas butterfly valve:

1、 There are several reasons for sealing surface leakage:

1. There are debris trapped between the butterfly plate and the sealing ring.

2. The butterfly plate and seal closure position do not match correctly.

3. The flange bolts are unevenly stressed or not tightened.

4. The pressure test direction did not meet the requirements

The solution to the problem of gas butterfly valve:

1. Replace the sealing gasket.

2. Clean the valve cavity.

3. Adjust the limit screws of the worm gear or electric actuator to achieve the correct valve closing position.

4. Check the installation flange plane and bolt clamping force, which should be evenly tightened,

5. Spin in the direction of the arrow

2、 Leakage at both ends of the gas valve

1. Failure of sealing gaskets on both sides;

2. The clamping force of the pipe flange is uneven or not tightened.

If you are interested in the gas butterfly valve produced and developed by Zibo Weiheng Valve Co., Ltd., please contact our online customer service or call Weiheng Valve's national consultation hotline at 400-832-1107. Weiheng Valve is dedicated to solving the working conditions of gas valves for you. (Weiheng Valve Network compiled by Miyagi)