| Customization: | Available |
|---|---|
| Connection: | RF Flanged Orthreaded |
| Application 1: | Vacuum System or Negative Pressure System |
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A72W-10P/R vacuum negative pressure safety valve is suitable for negative pressure systems with temperatures ≤ 200 ºC. When the negative pressure inside the container exceeds the allowable value, the vacuum negative pressure safety valve automatically opens to inhale air; When the negative pressure inside the container reaches the allowable value, the A72W-10P/R vacuum negative pressure safety valve automatically closes to protect the equipment and system. This product is generally installed in a normal non negative pressure system. When the release valve of the container and system is not opened and negative pressure is generated, the vacuum negative pressure safety valve will automatically open to protect the equipment from damage.
|
NO.
|
Name of part
|
HFA72W-P Materials
|
HFA72W-R Materials
|
|
1
|
Body
|
ZG1Cr18Ni9Ti
|
ZG1Cr18Ni12Mo2Ti
|
|
2
|
Nozzle
|
1Cr18Ni9Ti
|
ZG1Cr18Ni12Mo2Ti
|
|
3
|
Adjusting ring
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
|
4
|
Bonnet
|
ZG1Cr18Ni9Ti
|
1Cr18Ni9Ti
|
|
5
|
Stem
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
|
6
|
Spring
|
50CrVA
|
50CrVA Coated Teflon
|
|
DN(mm)
Nominal diameter
|
Dimension(mm)
|
||||||
|
D
|
D1
|
D2
|
Z-Фd
|
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
|
22
|
3
|
245
|
|
100
|
220
|
180
|
155
|
8-18
|
22
|
3
|
253
|
|
125
|
250
|
210
|
185
|
8-18
|
24
|
3
|
280
|
|
150
|
285
|
240
|
210
|
8-23
|
24
|
3
|
329
|
|
200
|
340
|
295
|
265
|
8-23
|
26
|
3
|
377
|
|
250
|
395
|
350
|
320
|
12-23
|
28
|
3
|
440
|
|
Working Temperature
|
≤200ºC
|
|
Suitable Medium
|
HFA72W-10P Nitric acid etc.medium
|
|
HFA72W-10R Acetic acid etc.medium
|
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