| H71H folder on the lift check valve
Type: NRVZ silent type
H71H folder on the lift check valve main technical parameters
|
Type |
Pressure |
Test Pressure |
Working temperature |
Applicable temperature |
|
Body |
seal |
|
H71H-16Q |
1.6 |
2.4 |
1.76 |
≤235℃ |
Water, steam, oil etc. |
|
H71H-25Q |
2.5 |
3.75 |
2.75 |
≤235℃ |
|
H71W-25H |
≤300℃ |
|
H71W-25P |
≤200℃ |
Nitric acid and other corrosive medium |
|
H71W-40H |
4.0 |
6.0 |
4.4 |
≤300℃ |
|
H71W-40P |
≤200℃ |
Water,steam |
H71H folder on the lift check valve material of main parts
|
Type |
Valve |
disc |
Spring |
|
H71H-16Q H71H-25Q |
QT400-15 |
25 |
50CrVA |
|
H71W-25H H71W-40H |
2Cr13 |
1Cr13 |
1Cr18Ni9 |
|
H71W-25P H71W-40P |
ZG1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni9Ti |
H71H folder on the lift check valve main dimensions
|
DN |
L |
D |
DN |
L |
D |
|
1.6 |
2.5 |
4.0 |
1.6 |
2.5 |
4.0 |
|
15 |
25 |
48 |
48 |
48 |
80 |
71 |
140 |
140 |
140 |
|
20 |
31.5 |
58 |
58 |
58 |
100 |
80 |
160 |
165 |
165 |
|
25 |
35.5 |
68 |
68 |
68 |
125 |
110 |
190 |
195 |
195 |
|
32 |
40 |
80 |
80 |
870 |
150 |
125 |
215 |
225 |
225 |
|
40 |
45 |
90 |
90 |
90 |
200 |
160 |
270 |
285 |
390 |
|
50 |
56 |
105 |
105 |
105 |
250 |
200 |
330 |
340 | |
