Name：pneumatic diaphragm cut-off valve
Model：ZMAQ、ZMAM
Quoted price：面议
Feature：SHANGHAI AUTOMATION INSTRUMENTATION CO., LTD
pneumatic diaphragm cut-off valveDetails：
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Nominal diameter DN(mm) |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
|
|
Rated flow coefficient kv |
Sleeve |
|
|
11 |
20 |
30 |
48 |
75 |
120 |
190 |
300 |
480 |
760 |
|
Single-seat |
5 |
7 |
11 |
20 |
30 |
48 |
75 |
120 |
190 |
300 |
480 |
760 |
|
|
Three-way |
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Rated travel (mm) |
8 |
12 |
20 |
25 |
40 |
50 |
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Allowed leakage |
Hard sealing（L/H） |
Sleeve5×10-5rated capacity, single-seat、three-way 1.2×10-7×rated capacity |
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Soft sealing（ml/min） |
None |
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Media temperature ℃ |
-200～+200、-40～+450 |
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Active area of diaphragm（cm2）（diaphragm cut-off valve） |
100 |
200 |
400 |
600 |
1000 |
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Nominal pressure PN(MPa) |
1.6 4.0 6.4 |
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Allowed pressure difference （MPa） |
Single-seat |
6.4 |
6.4 |
3.8 |
2.5 |
2.9 |
1.8 |
2.0 |
1.3 |
0.83 |
0.8 |
0.55 |
0.52 |
|
Sleeve |
6.4 |
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Signal pressure KPa |
200（diaphragm ） |
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Valve body |
Ht200 ZG230-450\ZG1Cr18Ni9Ti |
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Valve sleeve |
1Cr18Ni9Ti Cr18Ni12Mo2Ti |
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Valve spool、valve seat |
1Cr18Ni9Ti Cr18Ni12Mo2Ti |
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Filler |
PTFE flexible graphite |
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Components |
Air filter regulator 、solenoid valve 、feed back device of valve position |
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