The valve stem plays a key role in the angle seat valve, which mainly plays the role of support, guidance and sealing. Specifically:

1. Support: the stem supports the disc and seat to keep them in the correct position to prevent external pressure from adversely affecting the valve.

two。 Guiding function: the guiding function of the valve stem is to ensure that the valve disc moves along the correct track in the process of movement to avoid stagnation or friction.

3. Sealing function: the sealing performance of the valve stem is the key to ensure the valve seal, it can effectively prevent medium leakage and ensure the safety of the pipeline system.

The material of the valve stem directly affects the performance and service life of the valve. Common stem materials are stainless steel, alloy steel, carbon steel and so on. Stainless steel stem has good corrosion resistance and tensile strength, suitable for a variety of corrosive media; alloy steel and carbon steel stem has high strength and wear resistance, suitable for high pressure, high temperature and serious wear conditions.