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Electric ventilation flange butterfly valve


Product model: D941W

Nominal diameter: DN50 ~ 2000mm

Pressure range: PN0.05 ~ 0.6MPa

Applicable temperature: - 40 ~ + 450 ℃

Design standard: GB / T12238-2008, JB / T8692-1998

Connection size: GB / T9115.1-2000

Structure length: GB / T12221-1989

Pressure test: GB / T13927-1992, JB / T9092-1999

Connection mode: flange type

Applicable medium: gas, dusty gas, flue gas, etc


PRODUCT OVERVIEW

The electric ventilation flange butterfly valve is designed and manufactured by welding the midline butterfly plate and short structural steel plate. It has the characteristics of compact structure, light weight, easy installation, small flow resistance and large flow volume. Its applicable temperature depends on the material selection of the valve body. There are no connecting rods, bolts, etc. in the valve body. It has reliable operation and long service life. It can be installed in multiple stations without being affected by the flow direction of media. The AC 220V and 380V power supply voltage is configured as the driving power, and the operation can be controlled by receiving the (4 ~ 20mA) voltage and current signal output by the industrial automation instrument control system. It can be used for ventilation and regulating medium flow in industrial, metallurgical and environmental protection pipelines. It is mainly used in dusty cold air or hot air gas pipelines of ventilation and environmental protection projects in metallurgy, chemical industry, building materials, power station, glass and other industries as gas medium to regulate flow or cut-off devices.


PRODUCT FEATURES

1. Novel and reasonable design, unique structure and small operating torque. And the operation is simple, the switch is smart, and the opening and closing is fast.

2. The material of the valve can be selected according to the on-site pressure and temperature to meet the conditions of normal temperature, high temperature and different temperatures.


MAIN PERFORMANCE SPECIFICATIONS

Nominal diameter mm50~2000
Nominal pressure(MPa)PN0.25、0.6、1.0
Medium temperature-40 ~ + 450 ℃ (steel plate coil welding), above + 450 ℃ (stainless steel plate coil welding)
Angle range0-90°
Flow characteristicsApproximate percentage
Flange standardGB/T9115-2000Welding standard of steel pipe flange (non-standard products can also be customized according to customer dimensions)
Configure actuatorIt can be equipped with PSQ, HQ, UNIC, 361rs, HR and other series of angular stroke electric actuators
control modeSwitch in place lamp (switch two position control), intelligent regulation (4 ~ 20mA analog signal control)


MATERIAL OF MAIN PARTS

Part nameMaterial Science
valve bodyCast steel, stainless steel, chromium nickel molybdenum titanium steel, chromium molybdenum titanium steel and other special materials
DiscCast steel, stainless steel, chromium nickel molybdenum titanium steel, chromium molybdenum titanium steel and other special materials
seal ringSame as valve body
Valve stemCarbon steel, 2Cr13, stainless steel, chromium nickel molybdenum titanium steel
FillerFluoroplastics, flexible graphite


MAIN CONNECTION DIMENSIONS

Nominal diameterDN

Structure length (standard value)

Overall dimension (reference value)

Connection size (standard value)

reference value

(kg)

0.05MPa and 0.25MPa

0.6MPa

mm

inch

L

H

H0

A

B

D

D1

n-d

D

D1

n-d

50

2

108

70

418

250

225

140

110

4-14

140

110

4-14

42

65

2-1/2

112

80

438

250

225

160

130

4-14

160

130

4-14

53

80

3

114

95

466

250

225

190

150

4-18

190

150

4-18

62

100

4

127

105

486

250

225

210

170

4-18

210

170

4-18

81

125

5

140

120

516

325

245

240

200

8-18

240

200

8-18

90

150

6

140

132

541

325

245

265

225

8-18

265

225

8-18

100

200

8

152

160

779

325

245

320

280

8-18

320

280

8-18

110

250

10

165

187

836

363

313

375

335

12-18

375

335

12-18

145

300

12

178

220

901

363

313

440

395

12-22

440

395

12-22

160

350

14

190

245

954

363

313

490

445

12-22

490

445

12-22

215

400

16

216

270

1003

363

313

540

495

16-22

540

495

16-22

230

450

18

222

297

1058

465

439

595

550

16-22

595

550

16-22

250

500

20

229

322

1111

546

556

645

600

20-22

645

600

20-22

260

600

24

267

377

1233

546

556

755

705

20-26

755

705

20-26

370

700

28

292

430

1338

546

556

860

810

24-26

860

810

24-26

400

800

32

318

487

1452

546

556

975

920

24-30

975

920

24-30

560

900

36

330

537

1588

632

706

1075

1020

24-30

1075

1020

24-30

800

1000

40

410

587

1689

632

706

1175

1120

28-30

1175

1120

28-30

660

1200

48

470

702

1938

632

706

1375

1320

32-30

1405

1340

32-33

950

1400

56

530

782

2670

790

1338

1575

1520

36-30

1630

1560

36-36

1280

1600

64

600

895

2810

868

1476

1790

1730

40-30

1830

1760

40-36

1510

1800

72

670

995

3020

868

1476

1990

1930

44-30

2045

1970

44-39

2500

2000

80

760

1095

3220

965

1600

2190

2130

48-30

2265

2180

48-42

2900

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