What are the sealing materials for flange ball valves?
Release time:
2021-11-12
PTFE sealing: PTFE material has good chemical resistance and corrosion resistance, and can be used in a wide range of media. PTFE sealing can provide good sealing performance and has a low friction coefficient, suitable for various working conditions.
1. PTFE sealing: PTFE material has good chemical resistance and corrosion resistance, and can be used in a wide range of media. PTFE sealing can provide good sealing performance and has a low friction coefficient, suitable for various working conditions.
2. Rubber sealing: Common rubber sealing materials include nitrile rubber (NBR), fluororubber (FKM), and ethylene propylene rubber (EPDM). Different rubber materials are suitable for different media and working conditions, and have good sealing performance and corrosion resistance.
3. Metal seal: Metal seals are usually made of metal materials such as stainless steel or copper, such as O-ring seals or metal corrugated gaskets. Metal seals have the characteristics of high temperature resistance, pressure resistance, corrosion resistance, etc., and are suitable for working conditions with high temperature and pressure or special media.
4. Soft hard sealing combination: Some flange ball valves use a soft hard sealing combination, embedding rubber seals into metal sealing structures to achieve better sealing performance and durability.
Choosing appropriate sealing materials is crucial for different working conditions and media. It is necessary to select sealing materials based on the properties, temperature, pressure and other factors of the medium to ensure that the ball valve can provide reliable sealing performance and avoid leakage and failure. At the same time, attention should also be paid to selecting and using sealing materials reasonably based on the technical parameters and recommendations provided by the manufacturer, and timely inspecting and maintaining the sealing parts to ensure the normal operation of the ball valve.
Key words:
Previous Page
Previous Page: