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Z941H electric gate valve

Z941H electric gate valve

High and medium pressure flanged electric gate valve is suitable for the pipelines of various systems of petroleum, chemical, hydraulic and thermal power stations with nominal pressure PN1.6 ~ 16.0MPa and working temperature ≤-29 ℃ ~ 550 ℃ medium. Applicable medium: water, oil, steam, acid, alkali, ammonia, urea, sulfur-containing natural gas, etc. The operation modes of high and medium pressure gate valves are: manual, gear transmission, electric, pneumatic, etc.

Application specifications

Design and Manufacturing

GB / T12234

Connection size

Structure length

GB / T12221

Flange size

JB79

Inspection and test

JB / T9092

Material

Carbon steel

GB / T12229

stainless steel

GB / T12230

Logo

GB / T12220

Supply

JB / T7928

Structure and characteristics

1. Exquisite selection of materials, in accordance with relevant standards at home and abroad, high overall quality of materials.
2. Meet the requirements of domestic and foreign advanced standards, reliable sealing, excellent performance and beautiful appearance.
3. The sealing pairing is advanced and reasonable. The sealing surfaces of the gate and valve seat are made of Stellite cobalt-based hard alloy with different hardness. 2. Good anti-scratch performance and long life.
4. The valve stem undergoes quenching and tempering and surface nitriding treatment, and has good corrosion resistance, abrasion resistance and wear resistance.
5. It adopts wedge-type elastic brake plate structure. Thrust bearings are set in the middle and large calibers. The friction force is small and it is equipped with a manual impact. It can be opened and closed easily.
6. Various piping flange standards and flange sealing surfaces can be used to meet various engineering needs and user requirements.
Main parts materials and main uses

Valve body

cap

Valve plate

Valve seat

Valve stem

filler

Applicable medium

proper temperature
(≤ ℃)

WCB

WCB + D507MO

D577

2Crl3

Flexible graphite

Water, oil, steam

425

ZGlCr5MO

ZGlCr5M0 +
Stellite12

1Crl8Ni9 +
Stellite6

25Cr2M01VA

Flexible graphite

Water, oil, steam

550

ZGlCrl8Ni9Ti

Crl up Ni2

1Crl8Ni9 +
Stellite6

1Crl8Ni9Ti

PTFE

Nitric acid and alkali

200

ZG00Crl7Nil4M02

316L +
Stellite12

316L + Stel1ite6

316L

PTFE

Urea, methylammonium solution, phosphoric acid

200


Main dimensions, connection dimensions and quality

Nominal pressure
PN (MPa)

Nominal diameter
DN (mm)

standard value

Reference

Denso model

L

D

D1

D2

D6

b

f

f1

Z-φd

L1

H

Mass (kg)

1.6

50

250

160

125

100

16

3

4-φ18

590

678

90

DZWl0A

65

265

180

145

120

18

3

4-φ18

590

693

96

DZWl5A

80

280

195

160

135

20

3

8-φ18

590

755

108

DZW20A

100

300

215

180

155

20

3

8-φ18

590

820

126

DZW20A

150

350

280

240

210

twenty four

3

8-φ23

590

994

199

DZW20A

200

400

335

295

265

26

3

12-φ23

590

1138

254

DZW30A

250

450

405

355

320

30

3

12-φ25

810

1409

310

DZW45A

300

500

460

410

375

30

4

12-φ25

810

1588

391

DZW60

350

550

520

470

435

34

4

16-φ25

830

1755

729

DZW90

400

600

580

525

485

36

4

16-φ30

830

1902

992

DZWl20

450

650

640

585

545

40

4

20-φ30

870

214l

1168

DZWl80

500

700

705

650

608

44

4

20-φ34

870

2276

1222

DZW250

600

800

840

770

718

48

5

20-φ41

870

2474

1376

DZW250

2.5

50

250

160

125

100

20

3

4-φ18

590

678

95

DZWl0A

65

265

180

145

120

twenty two

3

4-φ18

590

693

99

DZWl5A

80

280

195

160

135

twenty two

3

8-φ18

590

755

113

DZW20A

100

300

230

190

160

twenty four

3

8-φ23

590

820

132

DZW20A

150

350

300

250

218

30

3

8-φ25

590

934

206

DZW30A

200

400

360

310

278

34

3

12-φ25

590

1138

257

DZW30A

250

450

425

370

332

36

3

12-φ30

810

1409

317

DZW45A

300

500

485

430

390

40

4

16-φ30

810

1588

412

DZW60A

350

550

550

490

448

44

4

16-φ34

830

1750

750

DZW90

400

600

610

550

505

48

4

16-φ34

830

1902

1042

DZWl20

450

650

660

600

555

50

4

20-φ34

870

2141

1275

DZWl20

500

700

730

660

610

52

4

20-φ41

870

2276

1420

DZWl80

600

800

840

770

718

56

5

20-φ41

870

2474

1522

DZW250

4.0

50

250

160

125

100

88

20

3

4

4-φ18

590

69l

95

DZWl0A

65

280

180

145

120

110

twenty two

3

4

8-φ18

590

711

102

DZWl5A

80

310

195

160

135

12l

twenty two

3

4

8-φ18

590

775

115

DZW20A

100

350

230

190

160

150

twenty four

3

4.5

8-φ23

590

871

163

DZW20A

150

450

300

250

218

204

30

3

4.5

8-φ25

590

1028

219

DZW30A

200

550

375

320

282

260

38

3

4.5

12-φ30

590

1325

373

DZW45A

250

650

445

385

345

313

42

3

4.5

12-φ34

810

1400

480

DZW60A

300

750

510

450

408

364

46

4

4.5

16-φ34

830

1653

686

DZW90

350

850

570

510

465

422

4

5

16-φ41

870

179l

1021

DZWl20

400

950

655

585

535

474

58

4

5

20-φ4l

870

2092

1450

DZWl80

500

1150

755

670

612

576

62

4

5

20-φ4l

1170

2465

2150

DZW250

6.4

50

250

175
135
105

88

26

3

4

4-φ18

590

790
102

DZWl5A

65

280

200
160
130

110

28

3

4

8-φ18

590

840
106

DZW20A

80

310

210
170
140

12l

30

3

4

8-φ18

590

890
123

DZW20A

100

350

250
200
168

150

32

3

4.5

8-φ23

590

1020
154

DZW30A

150

450

340
280
240

204

38

3

4.5

8-φ25

590

1290
317

DZW30A

200

550

405
345
300

260

44

3

4.5

12-φ30

590

1475
437

DZW45A

250

650

470
400
352

313

48

3

4.5

12-φ34

810

1500
606

DZW60A

300

750

530
460
412

364

54

4

4.5

16-φ34

830

1820
732

DZW90

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