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.
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