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Nominal diameter mm |
20 |
25 |
40 |
50 |
65 |
80 |
100 |
150 |
200 |
250 |
300 |
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Diameter of valve seat mm |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
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Rated flow coefficient Kv |
6.5 |
10 |
15 |
25 |
40 |
65 |
100 |
150 |
260 |
350 |
540 |
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Nominal pressure MPa |
1.6 ； 4.0 ； 6.4 |
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Travel mm |
10 |
16 |
25 |
30 |
40 |
60 |
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Flow characteristics |
Quick open |
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Media temperature ℃ |
Soft sealing :-40～150(normal temperature ) ； hard sealing:-40～200(normal temperature)； -40～450(medium temperature) |
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Flange size,type |
PN16 according to JB79-59； PN4.0,64 according to JB/T79.2-94 concave |
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Material of valve body |
ZG230-450 ； ZG1Cr18Ni9Ti；ZGOCr18Ni12Mo2Ti |
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Material of valve seat,valve spool |
1Cr18Ni9 ； 0Cr18Ni12Mo2Ti |
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Upper cover |
General (normal temperature) ； heat sink(medium temperature ) |
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Components |
Handwheel body,air filter regulator ,solenoid valve,feedback device of signa |
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