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VENTILATION VALVE

Qiaofa Machinery Manufacturing Co., Ltd., as an industry-leading steam system solutions expert, is committed to providing customers with premium VENTILATION VALVE products and professional services. With mature production processes and a comprehensive technical support system, we offer precise product selection recommendations and customized solutions tailored to actual operating conditions.

We adhere to customer-oriented principles and drive innovation through technology, providing comprehensive services from product selection to technical consultation, helping enterprises enhance steam system efficiency and create greater value.

Detailed Introduction

D641W/D941  VENTILATION VALVE

 

 Product characteristics and USES

This butterfly valve USES the same as the valve body material processed into sealing ring,use electric or pneumatic drive.The suitable temperature with the valve body material and decide,nominal pressure 0.6 MPa,or less generally applicable to the industry,metallurgy,Environmental protection pipe for use in ventilation regulating medium flow.Its main characteristic is:

1.The novel design,reasonable,unique structure,light weight,rapid opening and closing.

2.Small operation torque,easy to operate,saving smart.

3.Adopt to adapt to different materials to meet the high,medium and low medium temperature and corrosive medium,etc.

 

With a standard

Design criteria:GB/T12238-1989 JB/T8692-1998

Flange connection:GB/T9115.1-2000

length of the structure:GB/T12221-1989

Pressure test:GB/T13927-92  JB/T9092-1999


Main technical parameters

公称通径Nominal diameter

DN(mm)

50-2000

公称压力Nominal pressure

PN(MPa)

0.05

0.25

0.6

试验压力Ps(MPa)

强度试验Strength test

0.075

0.375

0.9

密封试验Sealing test

≤1.5%泄漏量leakage

适用介质Applicable medium

煤气、含尘气体、烟道气等Gas,dust,gas,flue gas,etc

驱动形式Drive form

手动、蜗杆涡轮传动、气传动、电传动
Manual,worm turbine drive,gas drive,electric drive

 

The material of the main parts

零件名称Part name

材料material

阀体valve body

铸钢、不锈钢、铬镍钼钛钢、铬钼钛钢等特殊材料
Cast steel,stainless steel,chromium nickel titanium molybdenum titanium steel,chrome molybdenum steel and other special materials

碟板Disc plate

密封圈Sealing ring

与阀体相同The same as the body l

阀杆valve stem

碳钢、2Cr13、不锈钢、铬镍钼钛钢
Carbon steel,2 cr13,stainless steel,nickel chromium molybdenum titanium steel

填料packing

氟塑料、柔性石墨
Fluorine plastic,flexible graphite

 

公称通径
Nominal diameter
DN

结构长度
(标准值)

外形尺寸(参考值)
Overall dimensions(reference)

连接尺寸(标准值)Connection size (standard)

0.05MPa和0.25MPa

0.6MPa

mm

inch

L

H

HO

A

B

D

D1

n-d

D

D1

n-d

50

2

108

70

337

180

65

140

110

4-14

140

110

4-14

65

21/2

112

80

357

180

65

160

130

4-14

160

130

4-14

80

3

114

95

385

180

65

190

150

4-18

190

150

4-18

100

4

127

105

405

180

65

210

170

4-18

210

170

4-18

125

5

140

120

483

245

72

240

200

8-18

240

200

8-18

150

6

140

132

508

245

72

265

225

8-18

265

225

8-18

200

8

160

160

566

245

72

320

280

8-18

320

280

8-18

250

10

160

187

623

245

72

375

335

12-18

375

335

12-18

300

12

180

220

750

355

93

440

395

12-22

440

395

12-22

350

14

180

245

803

355

93

490

445

12-22

490

445

12-22

400

16

200

270

852

355

93

540

495

16-22

540

495

16-22

450

18

200

297

907

355

93

595

550

16-22

595

550

16-22

500

20

220

322

960

355

93

645

600

16-22

645

600

16-22

600

24

220

377

1080

550

350

755

705

20-26

755

705

20-26

700

28

240

430

1185

550

350

860

810

24-26

860

810

24-26

800

32

240

487

1300

550

350

975

920

24-30

975

920

24-30

900

36

260

537

1400

550

350

1075

1020

24-30

1075

1020

24-30

1000

40

260

587

1500

550

350

1175

1120

28-30

1175

1120

28-30

1200

48

280

702

1825

600

350

1375

1320

32-30

1405

1340

32-33

 

 

公称通径
Nominal diameter
DN

结构长度
(标准值)

外形尺寸(参考值)
Overall dimensions(reference)

连接尺寸(标准值)Connection size (standard)

0.05MPa和0.25MPa

0.6MPa

mm

inch

L

H

HO

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

65

21/2

112

80

438

250

225

160

130

4-14

160

130

4-14

80

3

114

95

466

250

225

190

150

4-18

190

150

4-18

100

4

127

105

486

250

225

210

170

4-18

210

170

4-18

125

5

140

120

516

325

245

240

200

8-18

240

200

8-18

150

6

140

132

541

325

245

265

225

8-18

265

225

8-18

200

8

160

160

779

325

245

320

280

8-18

320

280

8-18

250

10

160

187

836

363

313

375

335

12-18

375

335

12-18

300

12

180

220

901

363

313

440

395

12-22

440

395

12-22

350

14

180

245

954

363

313

490

445

12-22

490

445

12-22

400

16

200

270

1003

363

313

540

495

16-22

540

495

16-22

450

18

200

297

1058

465

439

595

550

16-22

595

550

16-22

500

20

220

322

1111

546

556

645

600

16-22

645

600

16-22

600

24

220

377

1233

546

556

755

705

20-26

755

705

20-26

700

28

240

430

1338

546

556

860

810

24-26

860

810

24-26

800

32

240

487

1452

546

556

975

920

24-30

975

920

24-30

900

36

260

537

1588

632

706

1075

1020

24-30

1075

1020

24-30

1000

40

260

587

1689

632

706

1175

1120

28-30

1175

1120

28-30

1200

48

280

702

1938

632

706

1375

1320

32-30

1405

1340

32-33

1400

56

530

782

2670

790

1338

1575

1520

36-30

1630

1560

36-36

1600

64

600

895

2810

868

1476

1790

1730

40-30

1830

1760

40-36

1800

72

670

995

3020

868

1476

1990

1930

44-30

2045

1970

44-39

2000

80

760

1095

3220

965

1600

2190

2130

48-30

2265

2180

48-42

 

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