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Gas gate valve (large diameter) DN2000

Product Overview

Gas gate valve, suitable for medium: blast furnace gas, coke oven gas, producer gas, water gas, oil gas and other sewage gas, and liquefied gas, natural gas, mine gas and other clean gas. It is mainly used in coal to gas, metallurgy, coking and other industries and city gas pipeline network.

Structural characteristics

The valve body is cast. The valve seat adopts O-ring seal and floating seat structure with preload to make the inlet and outlet of the valve seal in both directions; and the opening and closing torque of this structure is only 1 / 2 of the ordinary valve, which can easily open and close the valve. The valve seat is inlaid with PTFE on the sealing surface, which has the double sealing of PTFE to metal and metal to metal, and the PTFE sealing surface can remove the sludge of the gate at the same time. The valve gate, whether fully opened or fully closed, is always consistent with the sealing surface, which is protected from direct erosion by medium, thus prolonging its service life. When the valve is fully open, the channel is smooth and straight, the flow resistance coefficient is very small, and there is no pressure loss. The pipeline can be cleaned by using the hairball. When the valve is closed, it can automatically remove the high pressure in the inner chamber (see the original working drawing for details) to ensure the safety of use. Using closed gear to turn the opening and closing indicating mechanism can clearly reflect the opening and closing situation of the valve for a long time. The outer surface of directly buried valve is treated with epoxy coal tar pitch, which can have the same service life as the pipeline.

Execution standard

Structure length: GB/T 15188.2-94
Flange connection size: GB/T 9113-2000
Inspection and testing: GB/T 13927-92

Performance parameter

Nominal diameter: DN80 ~ 1200mm
Pressure range: PN10MPa
Working temperature: Rubber ≤100℃ Teflon seal ≤100℃ Hard seal ≤100℃
Main material: cast iron
Suitable medium: water, oil

Product Dimensions

DN

L

D

D1

D2

Z-Φd

≈H

Electric actuator

JB

GB

80

210

203

200

160

132

8-19

608

Z10-24/36

100

230

229

220

180

156

8-19

712

Z10-24/36

125

255

254

250

210

184

8-19

797

Z15-24/36

150

280

267

285

240

211

8-23

850

Z15-24/36

200

330

292

340

295

266

8-23

1065

Z20-24/36

250

380

330

395

350

319

12-23

1187

Z20-24/36

300

420

356

445

400

370

12-23

1312

Z30-24/36

350

450

381

505

460

429

16-23

1362

Z30-24/36

400

480

406

565

515

480

16-28

1422

Z45-24/36

450

510

432

615

565

530

20-28

1932

Z60-24/36

500

540

457(700)

670

620

582

20-28

2300

Z60-24/36

600

600

508(800)

780

725

682

20-31

2520

Z90-28/36

700

660

610

895

840

794

24-31

2610

Z180

800

720

660

1015

950

901

24-34

2715

Z180

900

780

711

1115

1050

1001

28-34

2996

Z250

1000

840

811

1230

1160

1112

28-37

3185

Z350

1200

960

1015

1455

1380

1328

32-40

3410

Z350

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