Trunnionmodel A11C

Model A11C is the cryogenic execution of Valland’s trunnion mounted ball valve. The design principle is the same as the standard A11 — trunnion-supported ball with floating self-relieving or double piston effect seats — adapted for low-temperature service: materials are restricted to grades with proven low-temperature toughness (stainless steels, 6Mo, nickel alloys, titanium), and the valve is equipped for cryogenic duty with live-loaded packing and cavity pressure relief.Every A11C valve can be cryogenic tested at -196 °C per BS 6364 in Valland’s in-house facility before delivery. Typical applications include LNG liquefaction, storage and regasification terminals and low-temperature process services where a trunnion design is required by size or pressure class.

Applicable Standards
  • API 6D

    Specification for Pipeline and Piping Valves

  • API 6A

    Specification for Wellhead and Tree Equipment Twen...

  • ASME B16.34

    Valves--Flanged, Threaded, and Welding End...

  • BS 6364

    Specification for valves for cryogenic service

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