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  • What Is an FS Seal? Functions, Design and Wellhead Applications
    • July 09. 2026

    In oil and gas wellhead systems, sealing reliability is essential for maintaining well integrity and preventing pressure loss. Among the various sealing solutions used in API 6A wellhead equipment, the FS Seal is specifically designed to compensate for rough sealing surfaces and larger dimensional tolerances commonly found in casing and tubing connections.   If you're selecting seals for a ca...

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