Knife gate valve

Products > Gate Valve > Knife gate valve

Knife gate valve

Product model: PZ43H
Nominal Diameter: NPS 2 "~ NPS32" DDN50 ~ DN800
Pressure range: CL150 PN10 ~ PN420
Operating temperature: ≤200 ℃
Main material: carbon steel, stainless steel
Application: for water, sewage, food, medicine, textile, electricity, shipbuilding, metallurgy, energy system
connection standard: ASME B16.5, ASME B16.47, GB / T 9113, JB / T 79, HG / T 20592
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[Basic Information]

Manual Knife gate valve (Knife gate valve) compact design, occupy a small space, light weight, easy to install, wear anti-blocking measures perfect, easy maintenance, long service life. Depending on the requirements, multiple flushing ports may be provided around the valve body, flush directly with air, steam or water to prevent the sediment from accumulating and to be particularly suitable for fluid inflow. Polyester or  Ni-  resistant wear-resistant cast iron is mounted on the inlet end of the knife gate to prevent the particles from being washed directly on the seal, thus improving the working conditions and prolonging the life. In the top of the board installed Teflon, scraper, to prevent dust and gravel and other scratched material into the packing box. The use of all-round channel design, the bottom of the blade into a knife blade, high finish, to ensure a good seal. 

[Standard parameter]

design standardsAPI 600, API6D, ASME B16.34, GB / T 12234
Structure lengthASME B16.10, API6D, GB / T 12221
Connection standardASME B16.5, ASME B16.47, GB / T 9113, JB / T 79, HG / T 20592
Pressure testAPI 598, GB / T 13927, JB / T 9092
Pressure - temperature ratingASME B16.34, GB / T 12224


[Valve Features]

1, ultra-short structure length, save material, can greatly reduce the overall weight of the pipeline system.

2, take up effective space is small, can effectively support the strength of the pipeline, can reduce the possibility of pipeline vibration.

3, the gate selection of austenitic stainless steel, corrosion resistance greatly improved, can be effectively prevented due to gate corrosion caused by sealing leakage.

4, the use of flexible PTFE packing, sealed and reliable, light and flexible operation.

5, the gate has a knife function, can effectively cut off all kinds of debris in the media.

6, such as the use of hard-sealed stainless steel, valve do spray welding, then you can very good expansion of the valve temperature, pressure requirements. 


[Adaptation]
Knife gate valve products are widely used in chemical, coal, food, sewage, paper, steel and other areas, is an ideal sealing valve.

[Knife gate valve 1.6MPa main connection size and weight]

size

DN

15

20

25

32

40

50

65

80

100

125

150

200

250

300

350

400

L

mm

130

150

160

180

200

230

290

310

350

400

480

600

650

750

850

950

H

mm

200

243

253

280

312

321

325

355

415

460

510

700

975

1115

1250

1380

W

mm

120

140

160

160

200

200

240

240

280

320

360

560

600

700

800

900

weight

kg

5

6.5

7

13.5

16

32

45

60

80

107

134

268

449

663

750

1170

 

[Knife gate valve 2.5MPa main connection size and weight]

size

DN

15

20

25

32

40

50

65

80

100

125

150

200

250

300

350

400

L

mm

130

150

160

180

200

230

290

310

350

400

480

600

650

750

850

950

H

mm

200

243

253

280

312

321

325

355

415

460

510

700

975

1115

1250

1380

W

mm

120

140

160

160

200

200

240

240

280

320

360

560

600

700

800

900

weight

kg

5

6.5

7

13.5

16

32

45

60

80

107

134

268

449

663

750

1170

 

[Knife gate valve 4.0MPa main connection size and weight]

size

DN

15

20

25

32

40

50

65

80

100

125

150

200

250

300

350

400

L

mm

130

150

160

180

200

230

290

310

350

400

480

600

650

750

850

950

H

mm

200

243

253

280

312

321

325

355

415

460

510

700

975

1115

1250

1380

W

mm

120

140

160

160

200

200

240

240

280

320

360

560

600

700

800

900

weight

kg

5

6.5

7

13.5

16

32

45

60

80

107

134

268

491

705

850

1234