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365betͶע / Safety Valve / Vacuum Negative Pressure Safety Valve Consulting Hotline: 021-331007323

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Vacuum negative pressure safety valve


Vacuum negative pressure safety valve
Stable quality: implement quality monitoring throughout the process, meticulous and comprehensive detection!

Reasonable price: efficient internal cost control, reducing expenses and benefiting customers!

Fast delivery: advanced production lines, sufficient stocking, shortening the delivery time!
Sales: 021-31007323
Fax: 021-333321522
Technology: 021-31007323

product manual Pledge Order process

Product overview of vacuum negative pressure safety valve:
YFA72W vacuum negative pressure safety valve is suitable for negative pressure system with temperature ≤200 ℃. When the negative pressure in the container exceeds the allowable value, the YFA72W safety valve opens automatically and sucks air; when the negative pressure in the container reaches the allowable value, the YFA72W safety valve Automatic shutdown to protect equipment and systems. Installed in a normal non-negative pressure system, when the container and system's bleed valve is not opened, when the negative pressure is generated, the valve opens automatically.

Performance parameters of vacuum negative pressure safety valve:

Operating temperature

≤200 ℃

Applicable medium

YFA72W-10P is suitable for nitric acid medium

YFA72W-10R is suitable for acetate media

Material of parts for vacuum negative pressure safety valve:

NO.

Part Name

YFA72W-P material

YFA72W-R material

1

Valve body

ZG1Cr18Ni9Ti

ZG1Cr18Ni12Mo2Ti

2

Valve seat

1Cr18Ni9Ti

ZG1Cr18Ni12Mo2Ti

3

Adjustment ring

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

4

cap

ZG1Cr18Ni9Ti

1Cr18Ni9Ti

5

Valve stem

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

6

spring

50CrVA

50CrVA coated fluoroplastic

外形尺寸和连接尺寸: 4. Dimensions and connection dimensions of vacuum negative pressure safety valve :

真空负压安全阀外形结构图

Nominal diameter

size

D

D1

D2

Z-? D

b

f1

H

15

95

65

45

4-14

14

2

110

20

105

75

55

4-14

16

2

130

25

115

85

65

4-14

16

2

150

32

140

100

78

4-18

18

2

180

40

150

110

85

4-18

18

3

200

50

165

125

100

4-18

20

3

221

80

200

160

135

4-18

twenty two

3

245

100

220

180

155

8-18

twenty two

3

253

125

250

210

185

8-18

twenty four

3

280

150

285

240

210

8-23

twenty four

3

329

200

340

295

265

8-23

26

3

377

250

395

350

320

12-23

28

3

440

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