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    GTL-D71X Handle Manual Wafer Butterfly Valve

     

    Soft-sealed midline wafer butterfly valve, double eccentric flanged butterfly valve has compact structure, easy 90° rotary switch, reliable sealing and long service life. In drainage, it is used as regulation and cutoff.

    Characteristics:

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

    2. The sealing deputy material selection of stainless steel and nitrile oil resistant rubber pair, long service life.

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

    4. Butterfly plate adopts frame structure, high strength, large flow area, small flow resistance.

    5. The whole paint, can effectively prevent corrosion and as long as the replacement of sealing valve 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, is not affected by the space position, can be installed in any direction.

    7. The valve has unique structure, flexible operation, labor-saving and convenient.

    DETAILS

    Specifications

    DN(mm)

    50~2000

    50~1600

    PN(MPa)

    0.6

    1.0

    1.6

    Seal test (MPa)

    0.66

    1.1

    1.76

    Shell Test (MPa)

    0.9

    1.5

    2.4

    Suitable temperature

    Nitrile rubber:-40℃~90℃ Viton rubber:-20℃~200℃

    Suitable medium

    Water, air, natural gas, oil and weak corrosive fluids

    Leak rate

    Comply with GB/T13927-92 standard

    Drive mode

    Worm gear drive, electric, pneumatic, hydraulic

    Materials

    Name of parts

    材料

    Body

    WCB、QT450-10、HT200、HT250

    Disc

    WCB、QT450-10、HT200、HT250

    Shaft

    2Cr13

    Sealing ring

    Nitrile oil resistant rubber

    Packing

    Graphite

    Standard

    Manufacture standard

    GB/T 122387-89

    Flange standard

    GB9113-2000、GB17241.6-1998

    Structural length standard

    GB12221-89

    Inspection standard

    GB/T 13927-92

    Dimensions

     

     

    Size(mm)

    DN

    L

    L1

    Φ

    H1

    H2

    H3

    N

    Φ 3

    40

    42

    250

    110

    66.5

    142

    26

    4

    18

    50

    42.3

    260

    125

    66.5

    142

    26

    4

    18

    65

    43.3

    280

    145

    74.1

    151

    26

    4

    18

    80

    45.6

    284

    160

    94

    161

    26

    4

    18

    100

    50.6

    357

    180

    110.8

    181

    26

    4

    18

    125

    53.6

    374

    210

    128.8

    191

    28

    4

    18

    150

    54.4

    374

    240

    140.5

    204

    28

    4

    22

    200

    59.6

    384

    295

    172.5

    238

    29

    4

    22

    250

    65.4

    384

    350

    206.2

    268

    29

    4

    22/26

    300

    75

    537

    400

    235.8

    306

    30

    4

    22/26