Velan Cryogenic triple-offset Butterfly valve -Velan Inc. | Linquip

Velan Cryogenic triple-offset Butterfly valve

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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).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
  • 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.

  • Reinforced stainless steel shaft bearings: For high cycles and smooth operation at very low temperatures.

Velan Cryogenic triple-offset Butterfly valve Specifications:

  • Minimum Temperature (C)

    -254
  • DN from

    8
  • DN to

    2000
  • Pressure Nominal from (bar)

    20
  • Pressure Nominal to (bar)

    150
  • Class from

    150
  • Class to

    900
  • Sealing material

    metallic seal:Duplex,
  • NPS from

    3
  • NPS to

    80
  • Actuator Type
    Manual, pneumatic (single or double-acting type), electric or hydraulic according to customer specification
  • Pressure Class
    15
  • Design standard
    Low fugitive emissions: in accordance with ISO 15848/Ta-Luft,IEC 61508.
  • Body Material
    A351Gr.CF8M
  • Other parts' material
    Disk:A351Gr.CF8M,shaft:A453Gr.660Cl B type2,O-ring:viton
  • Media (working fluid)
    LNG,GTL
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