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Post box: rtv@zjrtfm.com
External trade department: 0577-8588 8220
0577-8588 8221
E-mail: valve@zjrtfm.com
monica@zjrtfm.com
Address: www.dekainu.com
Address: Block B-16, Airport New Area, Longwan District, Wenzhou City, Zhejiang Province (Jinhai Erdao 11 Road)

Stainless steel gate valve

The release date:[2017-08-07]     hits

Stainless steel flange gate valve features:

1. Compact structure, reasonable design, good valve rigidity, smooth channel, flow resistance coefficient is small.

2. Sealing surface with stainless steel and hard alloy, long service life.

3. The use of flexible graphite packing, sealed and reliable, light and flexible operation.

4. Drive the way manual, electric, pneumatic, gear drive. Structural form: elastic-type single-gate, rigid-type single-gate and double-gate form.

5. Widely used in petroleum, chemical, thermal power plants and other oil, steam pipe on the line or work to cut off the medium in the pipeline opening and closing devices.

Specification for stainless steel flanged gate valves

Specification for stainless steel gate valves

Design and manufacture: according to the provisions of GB / T12234-89 structure length: according to the provisions of GB / T12221-89 flange surface size: according to JB79GB / T9112-9131

Inspection and testing: safety JB / T9092-99GB / T13927-92 provisions of the transmission: manual, electric, gear

National Standard Flange Gate Valve Product Specification

Nominal pressure

PN (MPa)

Test pressure (MPa)

case

Sealed (liquid)

Seal (gas)

Sealed on

1.6

2.4

1.8

0.6

1.8

2.5

3.8

2.8

2.8

4.0

6.0

4.4

4.4

6.4

9.6

7.0

7.0

10.0

15.0

11.0

11.0

16

24.0

18.0

Stainless steel flange valve Applicable Scope - Stainless steel gate valve

Shell material

Applicable media

Applicable temperature ℃

Carbon steel (type C)

Water, steam, oil

≤425

Chromium-nickel-titanium (P-type)

Nitric acid

≤ 200

Chromium-nickel-molybdenum-titanium steel (R-type)

Acetic acid

≤ 200

Chromium-nickel-molybdenum (Type I)

Water, steam, oil

≤550

GB flange valve main part materials Main Part Material

Valves, bonnet

Gate, seat

Stem

Stem nut

filler

Hand wheel

stainless steel

High quality carbon steel + hard alloy or stainless steel

Chrome stainless steel

Aluminum bronze

Graphite asbestos packing

Malleable cast iron

Ductile iron

stainless steel

Stainless steel, stainless steel + hard alloy

Chrome-nickel-titanium stainless steel

Lined with tetrafluoroethylene

Chromium nickel molybdenum titanium steel

Stainless steel, stainless steel + hard alloy

Chrome-nickel-titanium stainless steel

Asbestos packing

Chromium nickel molybdenum

Alloy steel + hard alloy

Chromium molybdenum aluminum steel

318 (anti-sulfur series)

Flexible graphite filled

Tetrafluoro (anti-sulfur series)

Carbon steel gate Main parts Material:

Part Name

Body Material Code

Part Name

Body / bonnet

WCB

ZGCr5Mo

ZG1Cr18Ni9Ti/CF8

ZG1Cr18Ni12Mo2Ti/CF8M

Body/Bonnet

闸板

WCB

ZGCr5Mo

ZG1Cr18Ni9Ti/CF8

ZG1Cr18Ni12Mo2Ti/CF8M

Wedge

阀杆

Cr13

25Cr2MoV

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

Stem

填料

柔性石墨/Flexible Graphite

聚四氟乙烯/PTFE

Packing

垫片

18-8柔性石墨/18-8Flexible Graphite

Gasket

螺栓

35/35CrMo

25CrMoV

1Cr18Ni9

1Cr18Ni9

Bolt

适用温度

-29-425℃

-29-450℃

-40-200℃

-40-200℃

Suitable Temp.

适用介质

水、油品、蒸汽
Water,Oil,Steam

蒸汽、油品
Steam,Oil

硝酸类
Nitrc Acid

醋酸类
Acetic Acid

Suitable Medium

碳钢闸阀主要外形和连接尺寸Main External And Connection



法兰闸阀主要外形和连接尺寸Main External And Connection Dimension 单位Unit:mm

型号

公称通径

尺寸(mm)

L

D

D1

D2

b-f

z-Φd

H

D0

Z41W-1.6Mpa

Z41H-16C

Z41Y-16I

15

130

95

65

45

14-2

4-14

170

120

20

150

105

75

55

14-2

4-14

200

120

25

160

115

85

65

14-2

4-14

215

140

32

180

135

100

78

16-2

4-18

260

160

40

200

145

110

85

16-3

4-18

290

200

50

250

160

125

100

16-3

4-18

345

220

65

265

180

145

120

18-3

4-18

360

240

80

280

195

160

135

20-3

8-18

385

280

100

300

215

180

155

20-3

8-18

430

300

125

325

245

210

185

22-3

8-18

520

320

150

350

280

240

210

24-3

8-23

610

350

200

400

335

295

265

26-3

12-23

765

400

250

450

405

355

320

30-3

12-25

895

450

300

500

460

410

375

30-4

12-25

1145

500

350

550

520

470

435

34-4

16-25

1200

550

400

600

580

525

485

36-4

16-30

1400

600

450

650

640

585

545

40-4

20-30

1500

650

500

700

705

650

608

44-4

20-34

1630

700

600

800

840

770

718

48-5

20-41

1830

800



主要连接尺寸

型号

公称通径

尺寸(mm)

L

D

D1

D2

b-f

z-Φd

H

D0

Z41W-2.5Mpa

Z41H-25C

Z41Y-25C

Z41Y-25I

15

130

95

65

45

16-2

4-14

170

120

20

150

105

75

55

16-2

4-14

200

120

25

160

115

85

65

16-2

4-14

215

140

32

180

135

100

78

18-2

4-18

260

160

40

200

145

110

85

18-3

4-18

290

200

50

250

160

125

100

20-3

4-18

345

220

65

265

180

145

120

22-3

8-18

360

240

80

280

195

160

135

22-3

8-18

385

280

100

300

230

190

160

24-3

8-23

430

300

125

325

270

220

188

28-3

8-25

520

320

150

350

300

250

218

30-3

8-25

610

350

200

400

360

310

278

34-3

12-25

765

400

250

450

425

370

332

36-3

12-30

900

450

300

500

485

430

390

40-4

16-30

1130

500

350

550

550

490

448

44-4

16-34

1250

550

400

600

610

550

505

48-4

16-34

1430

600

450

650

660

600

555

50-4

20-34

1520

650

500

700

730

660

610

52-4

20-41

1650

700

600

800

840

770

718

56-5

20-41

1850

800



不锈钢法兰闸阀主要连接尺寸

型号

公称通径

尺寸(mm)

L

D

D1

D2

D6

b-f

z-Φd

H

Z41W-4.0Mpa

Z41H-40C

Z41Y-40C

Z41Y-40I

15

130

95

65

45

40

16-2

4-14

170

20

150

105

75

55

51

16-2

4-14

200

25

160

115

85

65

58

16-2

4-14

215

32

180

135

100

78

66

18-2

4-18

260

40

200

145

110

85

76

18-3

4-18

290

50

250

160

125

100

88

20-3

4-18

345

65

280

180

145

120

110

22-3

8-18

360

80

310

195

160

135

121

22-3

8-18

385

100

350

230

190

160

150

24-3

8-23

430

125

400

270

220

188

176

28-3

8-25

530

150

450

300

250

218

204

30-3

8-25

620

200

550

375

320

282

260

38-3

12-30

780

250

650

445

385

345

313

42-3

12-34

900

Z41W-6.4Mpa

Z41H-64C

Z41Y-64C

Z41Y-64I

15

170

105

75

55

41

18-2

4-14

175

20

190

125

90

68

51

20-2

4-18

200

25

210

135

100

78

58

22-2

4-18

215

32

230

150

110

82

66

24-2

4-23

270

40

240

165

125

95

76

24-3

4-23

300

50

250

175

135

105

88

26-3

4-23

370

65

280

200

160

130

110

28-3

8-23

385

80

310

210

170

140

121

30-3

8-23

400

100

350

250

200

168

150

32-3

8-25

460

125

400

295

240

202

176

36-3

8-30

570

150

450

340

280

240

204

38-3

8-34

660

200

550

405

345

300

260

44-3

12-34

820

250

650

470

400

352

313

48-3

12-41

1000


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Post box: rtv@zjrtfm.com
The ministry of foreign trade:0577-8588 8220 / 0577-8588 8221
E-mail: valve@zjrtfm.com / monica@zjrtfm.com
Web site: www.dekainu.com
Address:Block B-16, Airport New Area, Longwan District, Wenzhou City, Zhejiang Province (Jinhai Erdao 11 Road)

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