GDQ-J-A series


Normally closed pneumatic high vacuum baffle valve

GDQ-J-A series normally closed pneumatic high vacuum flapper valve relies on compressed air as the opening and closing power of the valve plate through the electromagnetic reversing valve. When the power supply or compressed air is lost, the valve with a diameter below DN80 will automatically close by spring force. Valves, the valves above DN100 use the one-way valve to quickly close the original air source pressure of the cylinder through the solenoid valve group to automatically close the valve. So as to achieve the function of quickly cutting off the air flow in the vacuum system. The shaft seal structure of pneumatic high vacuum baffle valve can be divided into GDQ-J-A type rubber seal and GDQ-J-A(b) type bellows seal. GDQ-J type is the angle through type, and GDQ-S type is the three-way type with pre-extraction. The applicable working medium is air and non-corrosive gas.

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  • Technical Parameters
  • Dimensions
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    • Commodity name: Normally closed pneumatic high vacuum baffle valve
    • Commodity ID: B-004
    • 型号: GDQ-J-A series

    GDQ-J-A series normally closed pneumatic high vacuum flapper valve relies on compressed air as the opening and closing power of the valve plate through the electromagnetic reversing valve. When the power supply or compressed air is lost, the valve with a diameter below DN80 will automatically close by spring force. Valves, the valves above DN100 use the one-way valve to quickly close the original air source pressure of the cylinder through the solenoid valve group to automatically close the valve. So as to achieve the function of quickly cutting off the air flow in the vacuum system. The shaft seal structure of pneumatic high vacuum baffle valve can be divided into GDQ-J-A type rubber seal and GDQ-J-A(b) type bellows seal. GDQ-J type is the angle through type, and GDQ-S type is the three-way type with pre-extraction. The applicable working medium is air and non-corrosive gas.

    • Applicable range (Pa) 105 ~1.3×10-4 (shaft seal material is rubber) 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) ≤1.3×10-7 (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
    • Air source pressure (MPa0.4~0.8
    • The installation position DN<300 is arbitrary, DN≥300 is vertical
    • Power supply voltage standard factory: AC220V/50Hz Special designation: ①AC110V; ②DC24V; ③DC12V, etc.
    • Signal feedback standard factory: without feedback signal Special designation: magnetic switch DC/AC5~240V

     

  •  

    (Figure 1) (KF) connection and dimensions

     

    modle

    diameter (DN)

    ΦD

    ΦB

    H

    A

    Flange standard

    GDQ-J10/KF

    10

    30

    12.2

    180

    30

    GB4982

    GDQ-J16/KF

    16

    30

    17.2

    180

    40

    GDQ-J25/KF

    25

    40

    26.2

    200

    50

    GDQ-J40/KF

    40

    55

    41.2

    210

    65

    GDQ-J50/KF

    50

    75

    52.2

    276

    70

    /

     

    (Picture 2) Loose flange connection and overall dimensions

     

     

    model

    diameter (DN)

    ΦD

    ΦB

    H

    A

    n-ΦC

    Flange standard DNy (pre-pumping)

    GDQ-J40A

    40

    100

    80

    241

    70

    4-Φ9

    GB/T6070

    /

    GDQ-J50A

    50

    110

    90

    332

    70

    GDQ-J63A

    63

    130

    110

    339

    88

    GDQ-J80A

    80

    145

    125

    395

    98

    8-Φ9

    GDQ-J100A

    100

    165

    145

    405

    108

    GDQ-J125A

    125

    200

    175

    424

    128

    8-Φ11

    GDQ-J(S)150A

    150

    220

    195

    482

    138

    JB919

    KF40(GB4982)

    GDQ-J(S)160A

    160

    225

    200

    482

    138

    GB/T6070

    GDQ-J(S)200A

    200

    285

    260

    620

    200

    12-Φ11

    DN50(GB/T6070)

    GDQ-J(S)250A

    250

    335

    310

    655

    208

    DN63(GB/T6070)

    GDQ-J(S)300A

    300

    380

    350

    783

    250

    8-Φ14

    JB919

    DN80(GB/T6070)

    GDQ-J(S)320A

    320

    425

    395

    1064

    250

    12-Φ14

    GB/T6070

    GDQ-J(S)400A

    400

    510

    480

    1212

    330

    16-Φ14

    DN100(GB/T6070)

    GDQ-J(S)400A

    400

    500

    465

    1212

    330

    8-Φ18

    JB919

    GDQ-J(S)500A

    500

    610

    580

    1270

    360

    16-Φ14

    GB/T6070

    DN125(GB/T6070)

    GDQ-J(S)600A

    600

    710

    670

    1562

    450

    12-Φ21

    JB919

    DN160(GB/T6070)

    GDQ-J(S)630A

    630

    750

    720

    1562

    450

    20-Φ14

    GB/T6070

    GDQ-J(S)800A

    800

    920

    880

    1865

    550

    20-Φ21

    JB919

    DN200GB/T6070)

     

     

    Note: ① When GDQ-J(S)400A adopts JB919 flange connection standard, its side port also conforms to GB/T6070 standard.

    ②GDQ-J(S)800A bottom to middle port A=500, and the bottom flange is a dead flange, and the screw hole is 20-M18.

  • File size: 368.2KB

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