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  Location — Gate valve  — GB Standard Stainless Steel Gate Valve
Name:

GB Standard Stainless Steel Gate Valve

Category:

Gate valve

Remark:

The stainless steel gate valve produced by Lianggong Valve Group Co., Ltd. The valve body, valve cover, gate plate, gate rod are made of stainless steel. The valve seat sealing surface is PTFE, stainless steel + carbide or surfacing carbide. The filler is carbide, PTFE, asbestos or flexible graphite. Nominal size DN15 ~ DN800, working pressure 1.6MPa ~ 20.0MPa, applicable temperature ≤ 200 ℃, suitable for nitric acid, weakly corrosive medium pipeline.

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Product Usage
The stainless steel gate valve produced by Lianggong Valve Group Co., Ltd. The valve body, valve cover, gate plate, gate rod are made of stainless steel. The valve seat sealing surface is PTFE, stainless steel + carbide or surfacing carbide. The filler is carbide, PTFE, asbestos or flexible graphite. Nominal size DN15 ~ DN800, working pressure 1.6MPa ~ 20.0MPa, applicable temperature ≤ 200 ℃, suitable for nitric acid, weakly corrosive medium pipeline.
 
Features
1. Using austenitic stainless steel which has good corrosion resistance to oxidizing acid medium.
2. When the medium flows through the stainless steel gate valve, the flow direction is not changed and the fluid resistance is small.

3. The movement direction of the gate is perpendicular to the flow direction of the medium, the opening and closing torque is small, and the opening and closing are labor-saving.

4. The flow direction of the medium is not limited. It will not disturb the flow or reduce the pressure. The medium can flow from any direction on both sides of the gate valve, which can achieve the purpose of use. It is most suitable for pipelines where the medium flow direction may change.
5. The gate is placed vertically in the valve body, the structure length is short..
6. Good sealing performance. The sealing surface is less eroded when fully opened.
 
Executive Standard
Design specifications: GB / T 12234
Structure length: GB / T 12221
Connecting flange: JB / T 79.1
Test and inspection: JB / T 9092
Pressure - Temperature: GB / T 9131
Product Identification: GB / T 12220
 
Performance parameters

Nominal pressurePN(MPa)

case

test pressure(MPa)

Sealed

Sealed (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

6.0

4.4

0.6

4.4

6.4

9.6

7.0

0.6

7.0

10.0

15.0

11.0

0.6

11.0

16.0

24.0

18.0

0.6

18.0

Suitable medium and applicable temperature

Shell material

Suitable media

Applicable temperature (℃)

Chromium nickel titanium steel (P type)

Nitric acids

≤200

Chrome nickel molybdenum titanium steel (R type)

Acetic acid

≤200

The main part material

Body, bonnet

Valve plate, seat

Valve stem

Stem nut

filler

Handwheel

Chromium nickel titanium steel

Stainless steel, stainless steel + cemented carbide

Chrome nickel-titanium stainless steel

Aluminum bronze

Teflon

Malleable iron

Chromium nickel molybdenum titanium steel

Stainless steel, stainless steel + cemented carbide

Chrome nickel-titanium stainless steel

Aluminum bronze

Teflon

Malleable iron

The main shape and connection dimensions

Nominal diameter

The main dimensions and connection dimensions

L

D

D1

D2

b

Z-d

H

D0

Z41W-16P

15

130

95

65

45

14-2

4-Φ14

170

120

20

150

105

75

55

14-2

4-Φ14

190

140

25

160

115

85

65

14-2

4-Φ14

205

160

32

180

135

100

78

16-2

4-Φ18

270

180

40

200

145

110

85

16-3

4-Φ18

310

200

50

250

160

125

100

16-3

4-Φ18

358

240

65

265

180

145

120

18-3

4-Φ18

373

240

80

280

195

160

135

20-3

8-Φ18

435

280

100

300

215

180

155

20-3

8-Φ18

500

300

125

325

245

210

185

22-3

8-Φ18

614

320

150

350

280

240

210

24-3

8-Φ23

674

360

200

400

335

295

265

26-3

12-Φ23

811

400

250

450

405

355

320

30-3

12-Φ25

969

450

300

500

460

410

375

30-3

12-Φ25

1145

580

350

550

520

470

435

34-4

16-Φ25

1280

640

400

600

580

525

485

36-4

16-Φ30

1452

640

Z41W-25P

15

130

95

65

45

16-2

4-Φ14

170

120

20

150

105

75

55

16-2

4-Φ14

190

140

25

160

115

85

65

16-2

4-Φ14

205

160

32

180

135

100

78

18-2

4-Φ18

270

180

40

200

145

110

85

18-3

4-Φ18

310

200

50

250

160

125

100

20-3

4-Φ18

358

240

65

265

180

145

120

22-3

8-Φ18

373

240

80

280

195

160

135

22-3

8-Φ18

435

280

100

300

230

190

160

24-3

8-Φ23

500

300

125

325

270

220

188

28-3

8-Φ25

614

320

150

350

300

250

218

30-3

8-Φ25

674

360

200

400

360

310

278

34-3

12-Φ25

811

400

250

450

425

370

332

36-3

12-Φ30

969

450

300

500

485

430

390

40-4

16-Φ30

1145

580

350

550

550

490

448

44-4

16-Φ34

1280

640

400

600

610

550

505

48-4

16-Φ34

1452

640


Structure picture



Inquiry

If you have any enquiry about quotation or cooperation,please feel free to email us at info@cnlgvalve.com or use the following enquiry form. Our sales representative will contact you within 24 hours. Thank you for your interest in our products.