Bellows globe valves are a common type of valve used to control the opening and closing of fluids. Its sealing performance is crucial for the normal operation of the valve and the safety of the fluid system. This article will introduce the sealing performance of bellows globe valves and the influencing factors, and provide corresponding solutions.

Bellows globe valves are important fluid control equipment widely used in various industrial fields. Its sealing performance directly affects the safety and efficiency of the fluid system. Therefore, it is crucial to have a deep understanding of the sealing performance of bellows globe valves and the factors that affect them in order to ensure the normal operation of the fluid system.

Sealing performance of bellows globe valves

The sealing performance of a corrugated pipe globe valve refers to the contact between the valve body and the sealing surface that can effectively prevent medium leakage or penetration when the valve is closed. Its sealing performance is mainly reflected in the following aspects:

a. Sealing between the rotating valve core and valve seat: The bellows globe valve achieves on-off control by rotating the valve core and valve seat. The sealing between the valve core and valve seat determines whether the valve can effectively prevent medium leakage when closed.

b. Sealing performance of bellows: As a key component of bellows globe valves, the sealing structure of bellows has a significant impact on the sealing performance of the valve.

Factors affecting the sealing performance of corrugated pipe shut-off valves

The sealing performance of bellows globe valves is influenced by various factors, mainly including the following:

a. Material selection: Different materials of corrugated pipes and seals have differences in sealing performance. For example, high-temperature materials need to be selected to ensure the sealing performance of valves under high temperature conditions.

b. Design and machining accuracy: The design and machining accuracy of a bellows globe valve directly affect the sealing performance of the valve core, valve seat, and bellows. Valves with reasonable design and high machining accuracy are more likely to achieve good sealing performance.

c. Operation method and strength: The correct operation method and appropriate strength ensure the normal opening and closing of the valve, avoiding leakage problems caused by improper operation.

d. Temperature and pressure: High temperature and high pressure environments have higher requirements for valve sealing performance. Bellows globe valves in such environments need to choose suitable sealing materials and ensure that the materials and structures can withstand large pressure differences.

Solution measures

In order to improve the sealing performance of bellows globe valves, the following measures can be taken:

a. Select suitable materials: Select suitable corrugated pipe materials and sealing materials according to the requirements of the working environment to ensure their high temperature resistance, corrosion resistance, and good sealing performance.

b. Strengthen design and machining accuracy: By optimizing the design and machining process of the valve, improve the fitting accuracy between the valve core, valve seat, and bellows, and reduce leakage points.

c. Regular maintenance and inspection: Regularly check the sealing performance of the valve and the wear of the sealing components, replace the worn sealing components in a timely manner, and ensure the normal operation of the valve.

d. Pay attention to operating standards: Train operators on the correct operating methods and intensity to avoid leakage problems caused by misoperation.

Conclusion:

The sealing performance of bellows globe valves is crucial for the normal operation and safety of fluid systems. By selecting suitable materials, enhancing design and machining accuracy