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Check valve
Product features：The product has the characteristics of small volum
H71H wafer type butterfly check valve used on the clip connection, compact structure, the valve flapalong the center position for the lifting movement, due to close the trip valve is short, and there isthe spring loaded, closing speed, can significantly reduce the water hammer phenomenon. The product has the characteristics of small volume, light weight, flexible action, reliable sealing,convenient installation, especially suitable for the installation space constrained occasions using,applicable to water, steam, oil, nitric acid, acetic acid, strong oxidizing medium and so on the many kinds of media.
Design and manufacture of: JB/T8937
The structural length: JB/T8937
Flange: JB/T74
Test and inspection: JB/T9092-1999
The main technical parameters:
|
Test pressure |
PN（MPa） |
||
|
1.6 |
2.5 |
4.0 |
|
|
Shell test |
2.4 |
3.8 |
6.0 |
|
Seal test |
1.8 |
2.8 |
4.4 |
|
valve body material |
WCB(C) |
CF8(P) |
CF8M(R) |
|
Working temperature |
≤425 |
≤100 |
≤100 |
|
Applicable medium |
Water, steam, oil |
Nitric acid |
Acetic acid |
The main dimension：
|
DN(mm) |
L |
D |
||
|
1.6 |
2.5 |
4．0 |
||
|
15 |
25 |
48 |
48 |
48 |
|
20 |
31.5 |
58 |
58 |
58 |
|
25 |
35.5 |
68 |
68 |
68 |
|
32 |
40 |
80 |
80 |
80 |
|
40 |
45 |
90 |
90 |
90 |
|
50 |
56 |
105 |
105 |
105 |
|
65 |
63 |
125 |
125 |
125 |
|
80 |
71 |
140 |
140 |
140 |
|
100 |
80 |
160 |
165 |
165 |
|
125 |
110 |
190 |
195 |
195 |
|
150 |
125 |
215 |
225 |
225 |
|
200 |
160 |
270 |
285 [1] |
290 |
|
250 |
200 |
330 |
340 |
350 |
|
300 |
250 |
385 |
400 |
415 |
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