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ZXPD low-temperature regulating valve
Product Description: ZXPD pneumatic thin film low-temperature angle regulating valve is a regulating valve used in low-temperature and deep cold appli
Product details
Product Description:
ZXPD pneumatic thin film low-temperature angle regulating valve is a regulating valve used in low-temperature and deep cold applications. Adopting a long neck valve cover for insulation and equipped with a multi spring actuator structure, it has the advantages of compact overall structure, light weight, and good stability. The valve body adopts a precision cast angular structure and is made of aluminum alloy, which has good low temperature resistance. The bellows seal ensures that the regulating valve does not leak in low-temperature situations. Therefore, it is widely used in low-temperature and cryogenic applications such as metallurgy, air separation, oxygen production, petroleum, chemical industry, etc. Specially suitable for precise control of process parameters for low-temperature gases and fluids (such as liquid oxygen, liquid argon, etc.) to maintain given values.
This series of products comes in two types: connection plate installation type and floating sleeve installation type. The nominal pressure rating is PN0.6MPa, and the valve body diameter range is DN20~100. It is suitable for various grades in the fluid temperature range of -60 ℃~-250 ℃. There are two leakage levels, IV and VI, and the flow characteristics are linear or equal percentage. A variety of varieties and specifications are available for selection.
Product features:
Bottom in and side out, simple flow path, low resistance, large valve body capacity
Dual directional, good stability of valve operation
Large adjustable range, with an inherent adjustable ratio of 50
The bellows seal forms a complete seal for the moving valve stem, blocking fluid leakage
Adopting a floating sleeve connection for easy installation
Floating sleeve installation type
Warm jacket, used in situations where the fluid is prone to crystallization and solidification after cooling, causing blockage.
Material of parts:
Valve body: LF4
Valve stem: 1Cr18Ni9
Valve cover: 1Cr18Ni9 wave
Texture tube: 1Cr18Ni9
Valve core and seat: 1Cr18Ni9
Gasket: Copper, 1Cr18Ni9
Technical parameters:
Specifications and technical parameters
Nominal DiameterDN（mm） |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
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Valve seat diameterdn（mm） |
10 |
12 |
15 |
20 |
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rated flow coefficient KV |
straight line |
1.8 |
2.8 |
4.4 |
6.9 |
11 |
17.6 |
27.5 |
44 |
69 |
110 |
176 |
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Equal percentage |
1.6 |
2.5 |
4.0 |
6.3 |
10 |
16 |
25 |
40 |
63 |
100 |
160 |
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Rated travel（mm） |
16 |
25 |
40 |
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Effective area of membraneAe（cm2） |
280 |
400 |
600 |
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Inherent flow characteristics |
Straight line, equal percentage |
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nominal pressurePN（MPa） |
0.6 |
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Inherent adjustable ratio（R） |
50 |
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operation temperaturet（℃） |
D0：-60~-100，D1：-100~-200，D2：-200~-250 |
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Signal RangePN(KPa) |
20~100，40~200，20~60，60~100，80~240 |
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Allowable pressure difference |
Without locator |
0.6 |
0.47 |
0.30 |
0.27 |
0.18 |
0.11 |
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Equipped with locator |
0.6 |
0.41 |
0.26 |
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Allowable leakage amount |
Level IV, Level VI |
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MpaPs(MPa) |
0.14~0.4 |
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Specification and weight:
Nominal diameter（DN） |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
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Valve seat diameter（dn） |
10 |
12 |
15 |
20 |
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A |
282 |
308 |
394 |
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L |
75 |
85 |
110 |
160 |
170 |
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L1 |
75 |
85 |
110 |
150 |
160 |
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D1 |
ф20 |
ф25 |
ф32 |
ф40 |
ф50 |
ф66 |
ф82 |
ф102 |
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D2 |
ф25 |
ф30 |
ф37 |
ф45 |
ф55 |
ф84 |
ф90 |
ф110 |
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H |
H1=500 |
952 |
971 |
980 |
1006 |
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H1=600 |
1250 |
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H1=700 |
1152 |
1171 |
1181 |
1206 |
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H1=800 |
1450 |
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H1=900 |
1352 |
1371 |
1381 |
1406 |
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H1=1000 |
1650 |
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n-d |
8-ф14 |
8-ф16 |
10-ф16 |
12-ф18 |
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D3 |
260 |
285 |
305 |
340 |
370 |
405 |
460 |
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D4 |
290 |
315 |
335 |
370 |
400 |
435 |
490 |
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D5 |
289 |
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|
|
|
|
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Connection standard:
Connection method: Welding
Thin film actuator signal interface: Internal thread M16 × 1.5
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