Beijing Jingyi Liye Valve Co., Ltd. Industrial Valve Manufacturer Since 2008
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    • Double Offset Butterfly Valve
    Double Offset Butterfly Valve
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    Double Offset Butterfly Valve

    Applications

    Double offset butterfly valves are widely utilized in water supply or drainage system, offering optimal performance under normal temperature and low-pressure conditions.

    Basic Information
    Size Range
    DN50-DN1200
    Temperature Range T
    -20-120℃
    Maximum Allowable Operating Pressure PN
    1.0-1.6Mpa
    Pressure Rating
    1.5-2.4Mpa (Shell)
    1.1-1.8Mpa (Seal)
    Applicable Media
    Water, gas, oil, non-corrosive particulates, and weak acids and alkali salts
    Materials
    No. Part Material
    1 Valve Body WCB, CF8, CF8M, CF3M
    2 Valve Disc CF8, CF8M, CF3M
    3 Insert 20#, 304, 316, 316L
    4 O-ring PTFE, PPL, RPTFE
    5 Gland CF8
    6 Retaining ring 316
    7 Stem 17-4PH
    8 Pin 17-4PH
    9 Packing PTFE, PPL, RPTFE
    10 Packing Washer 316
    11 Spacer Ring 316
    12 Upper Stem Sleeve 316+RPTFE
    13 Lower Stem Sleeve 316+RPTFE
    14 Bearing Gr Bearing Steel
    15 Gasket PTFE, PPL, RPTFE
    16 End Cover WCB, CF8, CF8M
    17 End Cover Bolt WCB, CF8
    18 Stud GB3098.18.8
    19 Spring Washer WCB, 316
    20 Hex Nut GB3098.18.8
    21 Threaded Insert WCB, CF8
    Valve Types
    • Double Offset Butterfly Valve
      Double Offset Butterfly Valve
    • Double-Eccentric Butterfly Valve with Bare Shaft
      Double-Eccentric Butterfly Valve with Bare Shaft
    Specifications
    • Worm Gear Operated Flange Butterfly Valve
      Worm Gear Operated Flange Butterfly Valve
      Specifications
    • Electric Actuated Flange Butterfly Valve
      Electric Actuated Flange Butterfly Valve
      Specifications
    • Worm Gear Operated Wafer Butterfly Valve
      Worm Gear Operated Wafer Butterfly Valve
      Specifications
    • Electric Actuated Wafer Butterfly Valves
      Electric Actuated Wafer Butterfly Valves
      Specifications
    Certifications
    Item Standard Optional Standard
    Design & Manufacture GB12238-2008 ISO/DIN10631-91, AP1598
    Face to Face Dimension GB12221-2005 ISO5752-88
    Flange Connection GB9113.1-2000, GB/T9119-2010 ANSI.B16.5, ISO7005, ISB2238
    Valve Test GB/T13927-2022 ISO/DIN 5208-87
    Valve Mark GB12220-89 ISO/DIN 5209-87
    Elastomeric Seal for Reduced Friction

    Our elastomeric seal technology focuses on soft sealing, significantly minimizing the extrusion and scratching between the valve disc and O-ring, thereby extending service life.

    Simplified Structure and Easy Operation

    The double-offset butterfly valve features a straightforward design with just two eccentric angles, making it easily operable via a standard mounting interface.

    Versatile and Customizable Service

    Our double-offset butterfly valves cater to multiple standards and can be tailored to meet specific requirements, offering a range of types for customized applications.

    Get in Touch
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    Contact Us

    Anthony Song
    anthony.song@bjjyly.com
    +86-10-61259058
    +86-13718625491
    +86-13718625491
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