Valve body, valve cover |
HT200、WCB、ZG1Cr18Ni9Ti |
bushing |
2Cr13 |
Valve core and valve seat |
1Cr18Ni9Ti、Surfacing welding of titanium alloy |
Film cover |
A3 |
Stem, push rod |
2Cr13、1Cr18Ni9Ti |
Spring |
60Si2Mn |
Corrugated diaphragm |
Nitrile rubber reinforced polyester fabric clip |
Shim |
Asbestos rubber sheet、1Cr18Ni9Ti、Graphite spiral wound gasket |
Soft sealing valve core |
Reinforced PTFE |
filler |
PTFE, flexible graphite, stainless steel bellows |
Nominal diameter DN |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
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Valve seat diameter dn(mm) |
10 |
12 |
15 |
20 |
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discharge coefficient Kv |
straight line |
1.8 |
2.8 |
4.4 |
6.9 |
11 |
17.6 |
27.5 |
44 |
69 |
110 |
176 |
275 |
440 |
|
Equal percentage |
1.6 |
2.5 |
4 |
6.3 |
10 |
16 |
25 |
40 |
63 |
100 |
160 |
250 |
400 |
Rated travel L(mm) |
10 |
16 |
25 |
40 |
60 |
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Ac(cm2 |
280 |
400 |
600 |
1000 |
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Nominal pressure PN(MPa) |
1.6、4.0、6.4 |
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Inherent flow characteristic |
Linear, equal percentage |
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Inherently adjustable ratioR |
50:1 |
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Signal range Pr(Kpa) |
20~100、40~200、80~240A picture:20~60、60~100 |
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Gas pressure Ps(MPa) |
0.14~0。4 |
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Allowable leakage |
Hard seal:IV level、Soft seal:VI level |
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working temperature t(℃) |
—40~450 |
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Basic error% |
Without positioner ≤±5Belt positioner≤±1 |
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Return difference% |
Without positioner≤3Belt positioner≤1 |
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dead zone% |
Without positioner≤3Belt positioner≤0.4 |
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Accessories can be equipped with |
Electro pneumatic valve positioner air filter pressure reducer hand wheel mechanism |
Nominal diameter DN |
Flange distance{L} |
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|
PN16 |
PN40 |
PN64 |
20 |
95 |
95 |
115 |
25 |
100 |
100 |
115 |
32 |
105 |
105 |
130 |
40 |
115 |
115 |
130 |
50 |
125 |
125 |
150 |
65 |
145 |
145 |
170 |
80 |
155 |
155 |
190 |
100 |
175 |
175 |
215 |
125 |
200 |
200 |
250 |
150 |
225 |
225 |
275 |
200 |
275 |
275 |
325 |
Address:Shanghai Market Road 3360
Switchboard:021-66516999
Phone Sales:021-51619868 / 021-66518677
Post:200436
E-mail : [email protected]
Al