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Torqseal® Triple Offset Cryogenic Valve3
https://www.afc-valve.com.tw/en/ Auto Flow Control Co., Ltd.
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Home Products Velan Gate, globe, and check valves Quarter-turn Valves Torqseal® Triple Offset Cryogenic Valve
148

Torqseal® Triple Offset Cryogenic Valve

Size Range
NPS 3 - 80 (DN 80 - 2000)
Pressure Class
ASME Class 150 - 900
Standard Connections
Flanged

Features & Benefits
DESIGN FEATURES:

  • Triple-offset disc rotation: Provides bubble-tight sealing without rubbing or galling.
  • Cryogenic stem packing: Composed of superposed Viton O-rings and expanded graphite rings (fire safe approved).
  • Low fugitive emissions: in accordance with ISO 15848/Ta-Luft.
  • No cavity: No cavity to prevent build-up of solids.
  • Drainage possibility: The bottom cover can be removed if drainage is required.
  • Internal blow-out protection: Prevents the shaft from blowing out under pressure.
  • Inherent fire safe function: Stainless steel construction and metallic seal provide inherent fire safe function.
  • Extended bonnet: With a sufficient gas column to keep the stem packing away from cold fluid. Extended bonnet length is qualified for use in LNG application with type approvals from major classification societies.
  • Actuator: Manual, pneumatic (single or double-acting type), electric or hydraulic according to customer specification. ON/OFF or MODULATING function according to the application. Fast-acting actuators for Emergency Shut Down (ESD) also available.
  • High quality castings: Radiographic control, dye penetrant test, ferrite content control, impact test at -196ºC according to customers’ requirements.
  • Reinforced stainless steel shaft bearings: For high cycles and smooth operation at very low temperatures.
  • High reliability: Safety Integrity Level requirements according to IEC 61508.
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