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Welding gate valves

Update: 2016/5/17      View:
  • name:    Welding gate valves
  • Type:    Z61
  • Presure:    PN1.6~PN10.0MPa
  • Specifications:    DN50~DN800
  • material:    Carbon steel, chrome molybdenum steel, stainless steel
  • Order Online

  • The product description

    Welding connection of valve is suitable for the nominal pressure PN16.0 32.0 Mpa, the working temperature of 540 ℃ or less oil, chemical industry, hydropower and thermal power plant all kinds of the pipeline system, cut off or connect pipe medium. Applicable medium such as water, oil, acid medium. Operation manual and gear drive, electric, etc.

  • The main connection and overall dimensions

    Nominal diameter

    L

    a

    H

    PN1.6(MPa)

    PN2.5(MPa)

    D1

    D2

    Denso device

    D1

    D2

    Denso device

    50

    250

    37°30

    620

    58

    50

    DZW10

    64

    49

    ZB10

    65

    270

    37°30

    714

    75

    65

    DZW10

    82

    67

    ZB10

    80

    280

    37°30

    765

    91

    79

    DZW10

    95

    77

    ZB10

    100

    300

    37°30

    840

    110

    97

    DZW15

    117

    101

    ZB15

    125

    325

    37°30

    852

    136

    121

    DZW15

    144

    126

    ZB20

    150

    350

    37°30

    875

    163

    146

    DZW20I

    172

    158

    ZB20

    200

    400

    37°30

    1015

    223

    202

    DZW20

    223

    202

    ZB25

    250

    450

    37°30

    1125

    278

    254

    DZW30

    278

    254

    ZB25

    300

    500

    37°30

    1371

    330

    305

    DZW45

    330

    305

    ZC45

    350

    550

    37°30

    1485

    382

    352

    DZW60

    382

    352

    ZC60

    400

    600

    37°30

    1890

    432

    399

    DZW60

    432

    399

    ZC90

    450

    650

    37°30

    1989

    485

    451

    DZW90

    485

    451

    ZC120

    500

    700

    37°30

    2041

    535

    501

    DZW120

    535

    499

    ZC120

    600

    800

    37°30

    2285

    636

    601

    DZW180

    636

    599

    ZC180

    700

    900

    37°30

    2347

    726

    691

    DZW250

    726

    689

    ZC250

    800

    1000

    37°30

    2593

    826

    791

    DZW350

    826

    789

    ZC350

    The main connection and overall dimensions

    Nominal diameter

    L

    D

    a

    PN4.0(MPa)

    PN6.4MPa)

    PN10.0(MPa)

    D1

    H

    Electric actuator

    D1

    H

    Electric actuator

    D1

    H

    Electric actuator

    50

    280

    64

    37°30

    49

    620

    DZW10

    50

    622

    DZW10

    49

    622

    ZB10

    65

    310

    83

    37°30

    67

    714

    DZW10

    66

    718

    DZW15

    64

    718

    ZB15

    80

    350

    96

    37°30

    79

    767

    DZW15

    77

    770

    DZW20I

    75

    770

    ZB20

    100

    400

    117

    37°30

    101

    845

    DZW20I

    99

    845

    DZW20I

    97

    845

    ZB25

    125

    450

    144

    37°30

    126

    852

    DZW20I

    129

    852

    DZW30

    125

    852

    ZB25

    150

    550

    172

    37°30

    152

    875

    DZW30

    150

    875

    DZW30

    145

    965

    ZC45

    200

    650

    223

    37°30

    200

    1015

    DZW30

    198

    1105

    DZW45

    190

    1105

    ZC60

    250

    750

    278

    37°30

    252

    1215

    DZW45

    246

    1215

    DZW60

    236

    1237

    ZC90

    300

    850

    330

    37°30

    302

    1371

    DZW60

    294

    1424

    DZW90I

    282

    1424

    ZC120

    350

    950

    382

    37°30

    350

    1507

    DZW90I

    342

    1507

    DZW120I

    334

    1670

    ZC180

    400

    1050

    432

    37°30

    397

    1912

    DZW120

    387

    2075

    DZW180

    377

    2075

    ZC250

    Note: PN1.6 (16) valve allows as PN1.0 (10) pressure level to choose.

    The main connection and overall dimensions

    Nominal diameter

    L

    a

    H

    PN1.6(MPa)

    PN2.5(MPa)

    D1

    D2

    Denso device

    D1

    D2

    Denso device

    50

    250

    37°30

    620

    58

    50

    DZW10

    64

    49

    ZB10

    65

    270

    37°30

    714

    75

    65

    DZW10

    82

    67

    ZB10

    80

    280

    37°30

    765

    91

    79

    DZW10

    95

    77

    ZB10

    100

    300

    37°30

    840

    110

    97

    DZW15

    117

    101

    ZB15

    125

    325

    37°30

    852

    136

    121

    DZW15

    144

    126

    ZB20

    150

    350

    37°30

    875

    163

    146

    DZW20I

    172

    158

    ZB20

    200

    400

    37°30

    1015

    223

    202

    DZW20

    223

    202

    ZB25

    250

    450

    37°30

    1125

    278

    254

    DZW30

    278

    254

    ZB25

    300

    500

    37°30

    1371

    330

    305

    DZW45

    330

    305

    ZC45

    350

    550

    37°30

    1485

    382

    352

    DZW60

    382

    352

    ZC60

    400

    600

    37°30

    1890

    432

    399

    DZW60

    432

    399

    ZC90

    450

    650

    37°30

    1989

    485

    451

    DZW90

    485

    451

    ZC120

    500

    700

    37°30

    2041

    535

    501

    DZW120

    535

    499

    ZC120

    600

    800

    37°30

    2285

    636

    601

    DZW180

    636

    599

    ZC180

    700

    900

    37°30

    2347

    726

    691

    DZW250

    726

    689

    ZC250

    800

    1000

    37°30

    2593

    826

    791

    DZW350

    826

    789

    ZC350

    The main connection and overall dimensions

    nominal

    size

    L

    D

    a

    PN4.0(MPa)

    PN6.4MPa)

    PN10.0(MPa)

    D1

    H

    Electric actuator

    D1

    H

    Electric actuator

    D1

    H

    Electric actuator

    50

    280

    64

    37°30

    49

    620

    DZW10

    50

    622

    DZW10

    49

    622

    ZB10

    65

    310

    83

    37°30

    67

    714

    DZW10

    66

    718

    DZW15

    64

    718

    ZB15

    80

    350

    96

    37°30

    79

    767

    DZW15

    77

    770

    DZW20I

    75

    770

    ZB20

    100

    400

    117

    37°30

    101

    845

    DZW20I

    99

    845

    DZW20I

    97

    845

    ZB25

    125

    450

    144

    37°30

    126

    852

    DZW20I

    129

    852

    DZW30

    125

    852

    ZB25

    150

    550

    172

    37°30

    152

    875

    DZW30

    150

    875

    DZW30

    145

    965

    ZC45

    200

    650

    223

    37°30

    200

    1015

    DZW30

    198

    1105

    DZW45

    190

    1105

    ZC60

    250

    750

    278

    37°30

    252

    1215

    DZW45

    246

    1215

    DZW60

    236

    1237

    ZC90

    300

    850

    330

    37°30

    302

    1371

    DZW60

    294

    1424

    DZW90I

    282

    1424

    ZC120

    350

    950

    382

    37°30

    350

    1507

    DZW90I

    342

    1507

    DZW120I

    334

    1670

    ZC180

    400

    1050

    432

    37°30

    397

    1912

    DZW120

    387

    2075

    DZW180

    377

    2075

    ZC250

    Note: PN1.6 (16) valve allows as PN1.0 (10) pressure level to choose.

  • The major parts material

    Material code

    valve body

    valve plate

    The piston

    The valve stem

    Four open loop

    packing

    Stem nut

         C

    WCB Carbon steel

    WCB

    A105

     20Cr13

    A105

    graphite

    ZQAL9-4

         I

    WC6 Chrome molybdenum steel

    WC6

    F11

     38CrMoAL

    F11

    graphite

    ZQAL9-4

         V

    WC9 Chrome molybdenum steel

    WC9

    F22

     25Cr2MoVA

    F22

    graphite

    ZQAL9-4

    Other special material our company can also be customized according to customer's requirements.

  • The performance specification

    Shell material

    Applicable medium

    Applicable temperature(℃)

    Carbon steelC type

    Water, steam, oil

    425

    Chrome molybdenum steelIV type

    Water, steam, oil

    550

    Nominal pressure PNMPa

    shell

    Test pressureMPa

    upper seal

    Seal (liquid)

    Seal (gas)

    1.6

    2.4

    1.8

    0.6

    1.8

    2.5

    3.8

    2.8

    0.6

    2.8

    4.0

    6

    4.4

    0.6

    4.4

    6.4

    9.6

    7

    0.6

    7

    10

    15

    11

    0.6

    11

  • Execution standard:

    Design criteria: JB/T3595

    Structure length: GB/T12221

    Groove size: JB/T3595

    Experiment and test: GB/T13927

    Pressure and temperature: GB/T9131 JB/T3595

    Product labeling: GB/T12220

  • Storage maintenance

    Valve can be stored in any masking area, but must pay attention to prevent valves are dirty mud or foundation. In at the time of shipment, the valve inlet and outlet are with protection cover. Note before installing the valve, don't to remove the protection cover. Ready to install the valve, the first will protect the end cover, and then check whether connection parts clean. For welding the parts need to clean them with a suitable solution, such as acetone or alcohol. Don't use contain fluoride and chloride solution.

    Installation and maintenance

    1. Before installation, must carefully check whether mark and nameplate of valve is consistent with working condition requirements.

    (2) hand wheel, lever operation of pipe cut-off valve can be installed in any position.

    3. The handwheel, handle and wei mechanism, does not allow for lifting.

    4. The flow of medium should be consistent with the direction arrow shown in the body.

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