WENZHOU DIYE VALVE&FITTINGS CO.,LTD

WENZHOU DIYE VALVE&FITTINGS CO.,LTD

Analysis of Leakage Causes of Pneumatic Clamping Butterfly Valve

2023 12/07

The sealing ring leakage of pneumatic clamp butterfly valves generally includes: valve stem sealing, middle channel sealing, and sealing rings leakage on both sides. Let's first talk about the reasons for the leakage of the sealing ring on the valve stem of the pneumatic ball valve. The operation of the valve stem of the pneumatic clamp butterfly valve is divided into up and down operation and left and right operation. The leakage here is related to frequent loosening of the switch or prolonged use. So what should be done if there is a leakage here? The sealing ring can be tightened with a tool wrench to prevent leakage. If there is a significant amount of leakage, the sealing ring must be replaced. Leakage at the middle sealing ring: Generally, if the medium temperature is too high, the sealing ring will deform and cause leakage, or if it has been used for a long time, we can achieve no leakage by tightening the screws of the middle sealing ring. If the temperature is too high and causes deformation, the sealing ring must be replaced to achieve no leakage.


The sealing rings on the last two sides of the pneumatic clamp butterfly valve are leaking. Generally, there are several situations where the sealing rings on both sides are leaking:

1. Frequent switching causes leakage of the ball core friction sealing ring;
2. The hardness of the medium impacts the sealing ring, causing leakage;
3. Excessive temperature affects the service life and leads to leakage. The above floor drains are achieved by replacing the sealing ring to prevent leakage.

Butterfly Valve Jpg
Pneumatic clamp butterfly valves are divided into soft sealing and hard sealing. Soft sealed pneumatic clamp butterfly valves generally have a maximum temperature resistance of 150 degrees, while hard sealed pneumatic butterfly valves generally have a maximum temperature resistance of 425 degrees. The most commonly used type is the soft sealed pneumatic butterfly valve, which is a commonly produced soft sealed pneumatic butterfly valve. It can replace the sealing ring, valve plate, and valve stem. This can not only help customers save costs, but also realize the value of the enterprise. The produced soft sealing pneumatic butterfly valve sealing rings include: nitrile rubber soft sealing pneumatic butterfly valve, EPDM rubber soft sealing pneumatic clamp butterfly valve, wear-resistant rubber soft sealing pneumatic butterfly valve, PTFE rubber soft sealing pneumatic clamp butterfly valve, and so on.

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