Knife Gate Valve

Knife Gate Valve

UTMOST is a pneumatic knife gate valve manufacturer, pneumatic knife gate valve supplier and exporter of pneumatic knife gate valves in China. We have a team of experienced china valve engineers who have been committed to manufacturing air actuated knife gate valves that are easy to use, safe and fast to operate. The stainless steel gate prevents sealing leakage caused by lame corrosion. Suitable for slurry, powder and granular materials, fibers, and other difficult to control fluids, widely used in paper, petroleum, chemical, drainage, food, and other industries.


Main Technical Parameters of Pneumatic Knife Gate Valve 

Valve design and manufacturing: JB/T8691, GB/T12224

The structural length of the valve: GB/T12221

Flange connection size: GB/T9113, HG/T20592

Valve Inspection and testing: GB/T13927, MSSP SP-61

Electric drive device connection size: JBT 8530

The operating temperature of the air-operated knife gate valve / pneumatic operated knife gate valve depends on the sealing type and valve material.


Pneumatic Knife Gate Valve Working Performance

The pneumatic knife gate valve has the advantages of simple and compact structure, reasonable design, light and material saving, reliable sealing, light and flexible operation, small size, smooth passage, small flow resistance, lightweight, easy installation, easy disassembly, etc. This actuated knife gate valve can work at a working pressure of 1.0MPa -2.5MPa, normal work under the operating temperature of -29- 425C. The pneumatic knife edge gate valve has a shearing function, which can scrape off the adhesion on the sealing surface and automatically remove the debris. The stainless steel gate of the pneumatic operated gate valve can prevent seal leakage caused by corrosion.

UTMOST valve OEM, a leading China valve manufacturer and China valve supplier with valve factory, is providing high-performance types of industrial valves for our customers.

 

Pneumatic Knife Gate Valve Datas

Material & Performance Specifications of Pneumatic Knife Gate Valve Main Parts

Material of Air Operated Knife Gate Valve Main Parts

Valve body, bonnet

Gate

Stem

Sealing ring

Stainless steel, carbon steel, gray cast iron

Carbon steel, stainless steel

Stainless steel

Rubber, PTFE, stainless steel, cemented carbide

 

Knife Gate Valve Pneumatic Main Performance Specifications

 

Nominal pressure PN

Shell test (MPa)

Seal test (MPa)

Operating temperature

Applicable medium

1

1.5

1.1

Rubber≤80°C
PTFE seal≤180°C
Hard seal≤425°C

Pulp, sewage, coal, ash, slag water mixture

 

Main Connection Dimensions of Pneumatic Knife Gate Valve

Nominal pressure

DN

L

D1

D2

H

Z-M

1.0MPa

50

48

100

125

335

4-M16

65

48

120

145

365

4-M16

80

50

135

160

395

4-M16

100

50

155

180

465

8-M16

125

57

185

210

530

8-M18

150

60

210

240

630

8-M20

200

60

265

295

750

8-M20

250

70

320

350

900

12-M20

300

76

368

400

1120

12-M20

350

76

428

460

1260

16-M20

400

89

482

515

1450

16-M22

450

89

532

565

1600

20-M22

500

114

585

620

1800

20-M22

600

114

685

725

2300

20-M27

700

127

800

840

2500

24-M27

800

127

898

950

2800

24-M30

900

154

1005

1050

3100

28-M30

1000

165

1115

1160

3400

28-M30

1200

190

1325

1380

3600

32-M36

 


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