Name：pneumatic diaphragm cut-off valve
Model：ZMBQ
Quoted price：面议
Feature：SHANGHAI AUTOMATION INSTRUMENTATION CO., LTD
pneumatic diaphragm cut-off valveDetails：
|
Nominal diameter DN（mm） |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
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|
Rated flow coefficient（KV） |
Single-seat、double-seat |
5 |
7 |
11 |
20 |
30 |
48 |
75 |
120 |
190 |
300 |
480 |
760 |
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|
Sleeve |
|
11 |
20 |
30 |
48 |
75 |
120 |
180 |
300 |
480 |
760 |
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|
Nominal diameter （MPa） |
1.0 1.6 4.0 6.4 |
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|
Rated travel （mm） |
8 |
12 |
20 |
25 |
40 |
50 |
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|
Active area （C㎡） |
ZMQ |
100 |
200 |
400 |
600 |
1000 |
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|
ZSQ |
100 |
125 |
160 |
250 |
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|
Allowed leakage |
Hard sealing 1/h |
General ：10ˉ4×rated capacity； |
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|
Soft sealing |
VI level |
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|
Allowed pressure difference （MPa） |
PZMQ positive action N |
6.4 |
5.09 |
2.91 |
1.85 |
2.18 |
1.33 |
1.52 |
0.99 |
0.62 |
0.60 |
0.69 |
0.39 |
|
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|
PZMQ negative action N |
6.4 |
6.4 |
3.88 |
2.47 |
0.91 |
1.77 |
2.03 |
1.32 |
0.83 |
0.80 |
0.92 |
0.52 |
|
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|
P |
6.4 |
6.1 |
3.5 |
2.3 |
3.0 |
1.9 |
1.9 |
1.5 |
0.93 |
0.84 |
0.65 |
0.47 |
|
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M |
Nominal pressure |
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|
ZMQ |
0 or 250 |
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|
ZQM |
0 or 400～600 |
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