Cryogenic Ball Valve

Product Overview

ZT top entry cryogenic trunnion mounted ball valves are widely used in typical cryogenic applications like LNG, LPG, air separation applications, in-line service. State-of-art lip seal technology combined with smart valve designs guarantee an excellent sealing performance which are applied to minus 196¡ãC working condition.


  • Size range(s)
    NPS 2 ¨C 24
    Pressure rating
    ASME Classes 150 ¨C900

Features and benefits

  • Design Features
    Extended bonnet
    Low emission design
    Lip seal sealing
    Cavity self-relief
    Imported PCTFE seat for low temperature performance.
    Patented seat seal structure design
    The seat and pressure relief structure can be adapt varies working conditions
    Top-entry design allows on-line maintenance.
    Guide bearing
    Standard drop plate constructed to avoid condensated water flowing into insulating layer.

  • Design Standard
    Design & manufacture according to API 608, API 6D, BS 6364
    ISO 14313, ISO 17292
    Face-to-face according to API 6D, ASME B16.10
    End Connection according to ASME B16.5 (RF, RTJ), 
    ASME B16.47(RF, RTJ), MSS SP-44 (NPS 22 Only), ASME B16.25 (BW)
    Test & inspection according to API 598, API 6D
    Also available per NACE MR-0175, NACE MR-0103, 
    ISO 15848

  • Product Catalogs
    Cryogenic Ball Valve
    Document code: ZT-LNGV-2022

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