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Address
Room 1005, Building B, No. 30, Lane 2419, Hunan Road, Beicai Town, Pudong New Area, Shanghai
Prevo Valve Industry (Shanghai) Co., Ltd
Room 1005, Building B, No. 30, Lane 2419, Hunan Road, Beicai Town, Pudong New Area, Shanghai
Overview of Pneumatic Sleeve Regulating Valve
Pneumatic sleeve regulating valve is a pressure balance regulating valve. Equipped with multiple spring actuators, the overall structure is compact, lightweight, and stable. The fluid channel is S-shaped, with low pressure drop loss, allowing for large pressure difference, low noise, and high flow capacity. Widely used for precise control of process parameters such as pressure, flow rate, temperature, and liquid level in gases, fluids, steam, and other media to maintain them at given values. Especially suitable for situations where large flow rates, large pressure differentials, and low leakage requirements are allowed.
There are various types of insulation, including adjustable and cut-off types, corrugated pipe sealing types, and jacket insulation types. The nominal pressure rating of the product includes PN10, 16, 40, and 64; The valve body diameter range is DN20~200. The applicable fluid temperature ranges from -200 ℃ to+560 ℃. The flow characteristics are linear or equal percentage. A variety of varieties and specifications are available for selection.
Material parameters of pneumatic sleeve regulating valve
Valve body and cover: HT200, ZG230-450, ZG1Cr18Ni9Ti
[Valve core and seat]: 1Cr18Ni9Ti, Stellite alloy overlay welding
【 Soft seal valve seat 】: PTFE
【 Packing Material 】: Polytetrafluoroethylene, Flexible Graphite
: DN2-DN200
【 Bellows Material 】: 1Cr18Ni9Ti
【 Filler Material 】: Rubber asbestos board, 10 #, 1Cr18Ni9Ti asbestos wrapped gasket
[Material of membrane cover]: A3
Valve stem material: 2Cr13, 1Cr18Ni9Ti
Corrugated film: Nitrile rubber clip reinforced polyester fabric
Pneumatic accessories: directional solenoid valve, limit switch, air filter pressure reducing valve, electrical locator, handwheel mechanism
【 Gas source pressure 】: 0.5MPa
Pneumatic actuator: double acting, single acting normally closed, single acting normally open
Electromagnetic valve voltage: AC220V/110V/380V/24V 50/60HZ DC24V/12V+10% to -10%
Specification and technical parameters of pneumatic sleeve regulating valve
Nominal diameter DN (mm) |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
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Rated flow coefficient KV |
straight line |
6.9 |
11 |
17.4 |
27.5 |
44 |
69 |
110 |
176 |
275 |
440 |
690 |
equal percentage |
6.3 |
10 |
16 |
25 |
40 |
63 |
100 |
160 |
250 |
400 |
630 |
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Rated travel L (mm) |
16 |
25 |
40 |
60 |
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Effective area of membrane Ae (cm2) |
280 |
400 |
600 |
1000 |
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Signal range Pr (KPa) |
20~100, 40~200 |
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Gas source pressure Ps (MPa) |
0.14~0.4 |
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Inherent flow characteristics |
Straight line, equal percentage |
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Inherent adjustable ratio |
50 |
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Allowable leakage amount |
Hard seat unbalanced type: Class IV (10)-4Valve rated capacity) Soft seat: Class VI |
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Nominal pressure PN (MPa) |
1.0, 1.6, 4.0, 6.4 |
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Working temperature t (℃) |
room temperature type |
-20-200, -40~240, -60~250 |
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heat dissipation type |
-40-450, -60~450 |
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high-temperature type |
300~560 |
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low-temperature type |
-60~-100, -100~-200, -200~-250 |
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