GD-J series


High vacuum flapper valve

GD-J (b) series manual high-vacuum flapper valve is one of the important components in the vacuum system. The transmission part of the valve adopts a threaded structure, and the valve plate is opened and closed by manual rotation of the handwheel. Applicable media are air and non-corrosive gases.

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  • Technical Parameters
  • Dimensions
  • Electronic sample download
    • Commodity name: High vacuum flapper valve
    • Commodity ID: B-008
    • 型号: GD-J series

    GD-J (b) series manual high-vacuum flapper valve is one of the important components in the vacuum system. The transmission part of the valve adopts a threaded structure, and the valve plate is opened and closed by manual rotation of the handwheel. Applicable media are air and non-corrosive gases.

    • Applicable range (Pa) 105~1.3X10-4 105~1.3×10-6 (shaft seal material is bellows)
    • Valve leakage rate (Pa.L/S)≤1.3×10-5 (shaft seal material is rubber) ≤1.3×10-6 (shaft seal material is bellows)
    • Medium temperature (°C) -25~+80 (the sealing material is NBR) -30~+150 (the sealing material is fluororubber)
    • Main parts of the valve are made of stainless steel or carbon steel
    • Any installation position

     

  •  

    (Figure 1) (KF) connection and dimensions

     

    modle

    diameter (DN)

    ΦD

    ΦB

    H

    A

    Φw

    Flange standard

    GD-J10/KF

    10

    30

    12.2

    122

    30

    36

    GB4982

    GD-J16/KF

    16

    30

    17.2

    132

    40

    36

    GD-J25/KF

    25

    40

    26.2

    158

    50

    50

    GD-J40/KF

    40

    55

    41.2

    180

    65

    56

    GD-J50/KF

    50

    75

    52.2

    278

    70

    100

    /

     

    (Picture 2) Loop flange connection and dimensions

     

    modle

    diameter (DN)

    ΦD

    ΦB

    H

    A

    Φw

    n-ΦC

    DNy (pre-extraction)

    Flange standard

    GD-J40

    40

    100

    80

    180

    70

    56

    4-Φ9

    /

    GB/T6070

    GD-J50

    50

    110

    90

    305

    70

    100

    GD-J63

    63

    130

    110

    348

    88

    125

    GD-J80

    80

    145

    125

    414

    98

    160

    8-Φ9

    GD-J100

    100

    165

    145

    430

    108

    GD-J125

    125

    200

    175

    516

    128

    8-Φ11

    GD-J(S)150

    150

    220

    195

    550

    138

    200

    KF40(GB4982)

    JB919

    GD-J(S)160

    160

    225

    200

    550

    138

    GB/T6070

    GD-J(S)200

    200

    285

    260

    678

    200

    12-Φ11

    KF50(GB/T6070)

    GD-J(S)250

    250

    335

    310

    745

    208

    250

    KF63GB/T6070)

    GD-J(S)300

    300

    380

    350

    822

    250

    8-Φ14

    KF80(GB/T6070)

    JB919

    GD-J(S)400

    400

    510

    480

    1180

    330

    400

    16-Φ14

    KF100(GB/T6070)

    GB/T6070

     

  • File size: 367.0KB

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