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Z73H Knife gate valve

Product Overview

Z73H Knife gate valve is widely used in papermaking, petrochemical, mining, drainage, food and other industries because of its good shear effect, which is most suitable for slurry, powder, fiber and other difficult to control fluid. With a variety of valve seats to choose from, and according to the field control requirements, equipped with electric or pneumatic actuators, to achieve automatic valve operation.

Structural characteristics

1. Ultra-short structure length, save material, and greatly reduce the overall weight of pipeline system;
2. Small occupancy of effective space, can effectively support the strength of the pipeline, can reduce the possibility of pipeline vibration;
3. The gate is made of austenitic stainless steel, which can greatly improve the corrosion resistance and effectively prevent the seal leakage caused by the corrosion of the gate;
4. Flexible PTFE is used as the sealing filler to ensure reliable sealing and flexible operation;
5. The gate plate has the function of a knife, which can effectively break all kinds of sundries in the brake medium;
6, the use of hard sealed stainless steel, disc spray welding treatment, can expand the valve on the temperature, pressure requirements.

Execution standard

Design specification: JB/T8691-1998
Length of structure: GB/T12221-2005
Flange connection: GB/ T9113.1-2000 JB/T79-94
Tests and inspection: GB/T13927-92

Performance parameter

Nominal diameter: DN50 ~ 600mm
Pressure range: PN1.0mpa
Working temperature: Rubber ≤80℃ Teflon seal ≤180℃ Hard seal ≤425℃
Main material: carbon steel, stainless steel
Suitable medium: syrup, pulp, sewage, coal slurry, meeting, slag water mixture

Product Dimensions

PN(MPa)

DN(mm)

L

D

D1
D2
H
N-M

DO

PZ73X-6/10/16 PZ73F-6/10/16 PZ73H-6/10/16 PZ73Y-6/10/16

1.0

50

50

160

125

100

285

4-M16

180

65

50

180

145

120

298

4-M16

180

80

50

195

160

135

315

4-M16

220

100

50

215

180

155

365

8-M16

220

125

50

245

210

185

400

8-M16

230

150

70

280

240

210

470

8-M20

280

200

70

335

295

265

540

8-M20 .

360

250

70

390

350

320

630

12-M20

360

300

80

440

400

368

780

12_M20

400

350

90

500

460

428

885

16_M20

400

400

100

565

515

482

990

16_M22

400

450

120

615

565

532

1100

20-M22

530

500

120

670

620

585

1200

20-M22

530

600

120

780

725

685

1450

20-M27

600

700

130

895

840

800

1700

24-M27

600

800

130

1010

950

905

2000

24-M30

680

900

140

1110

1050

1005

2300

28-M30

680

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