Vacuum Partition Manual Gate Valve

Vacuum partition manual gate valve is an isolation valve specifically designed for vacuum or negative pressure systems, which achieves complete sealing or opening by manually driving the gate to move vertically. Its core design is a metal hard seal or fluororubber soft seal structure, which can withstand high vacuum (≤ 10 ^ -6 Pa level) environments, with no leakage risk when cutting off medium flow. It is suitable for laboratory, semiconductor manufacturing, vacuum equipment and other scenarios, and has the characteristics of corrosion resistance, long life, and low opening and closing torque.

  • Multi scenario adaptability
  • Strengthen the airtightness of the flange
  • Low operating torque and convenient maintenance
  • Bidirectional elastic sealing technology
  • High corrosion resistance and wear resistance
  • Design of vacuum sealing structure
Multi scenario adaptability
  • Multi scenario adaptability
    01
    Compact structure and wide pressure resistance range (such as -16~6.4MPa), suitable for high vacuum environments such as laboratories and semiconductor manufacturing, compatible with water, gas, and weakly corrosive media.
Strengthen the airtightness of the flange
  • Strengthen the airtightness of the flange
    01
    The flange connection adopts high expansion coefficient composite material gaskets, which maintain excellent airtightness under extreme vacuum conditions and effectively block external air infiltration.
Low operating torque and convenient maintenance
  • Low operating torque and convenient maintenance
    01
    Concealed rod structure with embedded copper nuts, low manual opening and closing torque, easy to operate; Modular design supports quick maintenance, and seals can be replaced without disassembling the valve.
Bidirectional elastic sealing technology
  • Bidirectional elastic sealing technology
    01
    Parallel gate bidirectional elastic sealing design, combined with precision sealing pair pairing, has low friction and reliable sealing, significantly reducing leakage risk and extending service life.
High corrosion resistance and wear resistance
  • High corrosion resistance and wear resistance
    01
    The valve stem has undergone quenching and surface nitriding treatment, significantly improving its corrosion resistance and wear resistance; The valve body is made of high-quality materials (such as CF8 stainless steel) that comply with international standards to ensure long-term stable operation.
Design of vacuum sealing structure
  • Design of vacuum sealing structure
    01
    Adopting a dedicated vacuum sealed packing chamber structure, effectively isolating the system from the atmosphere, preventing gas leakage, and ensuring sealing performance in high vacuum environments.
Main Component Materials

Part Name

Valve body and valve cover

valve stem

ram

sealing surface

stem nut

filler

fastener

NKZ44
NKZ41
NKZ944
NKZ941

1H-C type

WCB

2Cr12

25

H: Alloy steel

aluminum bronze

expansion
composite graphite

high-quality carbon steel

NKZ44
NKZ41
NKZ944
NKZ941

Y-I type

chromium-molybdenum steel

20Cr1Mo1VA
38CrMoAlA

chromium-molybdenum steel

Y: Hard alloy

chromium-molybdenum steel

Performance Specifications & Dimensions
  • Nominal Pressure PN
    1.0/1.6/2.5/4.0/6.4/10.0/16.0
  • Shell F
    Px1.5
  • Sealing Pressure
    Px1.1
  • Medium
    Water, steam, air
  • Temperature (℃)
    C-type ≤ 400, I-type ≤ 550

Nominal

Diameter

DN(mm)

PN1.0MPa

Weight
(kg)

L

H

D

D1

D2

b

f

z-Φd

W

50

250

345

160

125

100

16

3

4-18

250

28

65

270

395

180

145

120

18

3

4-18

250

40

80

280

425

195

160

135

20

3

4-18

300

55

100

300

510

215

180

155

20

3

8-18

300

72

125

325

570

245

210

185

22

3

8-18

350

106

150

350

725

280

240

210

24

3

8-18

350

146

200

400

820

335

295

265

26

3

8-18

400

220

250

450

890

390

350

320

28

3

12-23

400

315

300

500

1070

440

400

368

28

3

12-23

450

398

350

550

1320

500

460

428

30

4

16-23

550

530

400

600

1450

565

515

482

32

4

16-25

550

690

450

650

1560

615

565

532

32

4

20-25

600

870

500

700

1720

670

620

585

34

4

20-25

650

1080

600

800

1880

780

725

685

36

5

20-30

700

1350

700

900

2085

895

840

800

40

5

24-30

750

1950

800

1000

2590

1010

950

905

44

5

24-34

800

2500

Note: The pressure range is 1. OMPa~16.0MPa. The above data is for reference only. Please consult the company's sales department for details.

Valve Application
  • Oil & Gas Transportation

    Oil and gas transportation involves multiple modes such as pipelines and ships, and is the core link of the energy supply chain.

  • Chemical Raw Material Control

    The control of chemical raw materials covers the entire process of mining, storage, and production, ensuring safety and process stability.

  • High Temperature SteamPipeline in Power System

    High temperature steam pipelines are the core of energy transmission in power systems, supporting the efficient operation of thermal and nuclear power plants.

  • Other Industries

    Valves control fluids in multiple industries such as new energy and electronics, ensuring safe and efficient production.

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