Hard Seal Ball Valve

Hard Seal Ball Valve. Wear-Resistant Alloy Steel: Spool and seal ring are alloy steel spray welded with hardness coefficient of 65-70 for minimal wear. Reliable Sealing Performance: Manually ground spool and seal ring ensure complete match; metal contact backup prevents stem leakage. Long Service Life: Polytetrafluoroethylene materials provide good self-lubrication and small ball friction loss. Light Switch Operation: Spring-loaded seal ring at the bottom ensures tight holding and very light switching effort. Anti-Static Function: Spring between ball, stem, and body conducts static electricity generated during switching. Wide Application Scope: Suitable for petroleum, chemical, power, aviation, and daily life with various media like oil and acid. 20 Years Manufacturing Experience: Integrated high-tech enterprise with 300 employees, 270,000 valves/year capacity, and 20 years experience.