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  • current location: Home   >> Product   >> Pneumatic valve >> Pneumatic butterfly valve

    Pneumatic double-clip type Butterfly valve

    詳情介紹

    product description

    Overview of pneumatic butterfly valve products

    Sandwich type pneumatic butterfly valve, 90° rotary switch easy, reliable sealing, long service life, is widely used in water plants, power plants, steel mills, paper, chemical, food and beverage systems such as water supply and drainage, as a regulation and cut-off use.

    Two, pneumatic butterfly valve features

    1, the valve adopts a double eccentric structure, with the sealing function of more close more tight, reliable sealing performance.

    2. The sealing auxiliary material is matched with stainless steel and nitrile oil-resistant rubber, which has a long service life.

    3, the rubber sealing ring can be located on the valve body, can also be located on the butterfly plate, can be applicable to different characteristics of the medium, for users to choose.

    4. The butterfly plate adopts frame structure with high strength, large flow area and small flow resistance.

    5, the overall paint, can effectively prevent corrosion and as long as the replacement of sealing seat sealing material, can be used in different media.

    6, the valve has a two-way sealing function, installation is not controlled by the flow of media, also not affected by the space position, can be installed in any direction.

    7, the valve structure is unique, flexible operation, labor saving, convenient.


    Three, the main technical parameters of pneumatic butterfly valve

    DN(mm)50~200050~1600
    PN(MPa)0.61.01.6
    Seal test(MPa)0.661.11.76
    strength test(MPa)0.91.52.4
    applicable temperatureNitrile rubber: -40℃ ~ 90℃ fluorine rubber: -20℃ ~ 200℃
    applicable mediumWater, air, natural gas, oil and weak corrosive fluids
    leakage rateComply with GB/ t13927-92 standard
    drive modeWorm gear drive, electric, pneumatic, hydraulic


    Four, pneumatic butterfly valve main parts and components materials

    name of partsmaterials
    valve bodyWCB、QT450-10、HT200、HT250
    Butterfly PlateWCB、QT450-10、HT200、HT250
    valve shaft2Cr13
    seal ringNitrile oil resistant rubber
    paddingExpanded graphite

    Five, pneumatic butterfly valve implementation standard

    manufacturer's standardGB/T 122387-89
    Flange standardGB9113-2000、GB17241.6-1998
    Structural length standardGB12221-89
    inspection standardGB/T 13927-92

    Six, pneumatic butterfly valve main shape connection size unit: mm

    DNLHHOAB0.6MPa1.0MPa1.6MPa
    DOn-dDOn-dDOn-d





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