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Qinggang Industrial Park, Fengxian District, Shanghai
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Shanghai Yuhu Self Control Valve Co., Ltd
Operating conditions of Shanghai Yuhu pneumatic thin film sleeve regulating valve
NegotiableUpdate on 05/25
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Overview
Our company's ZJHM pneumatic thin film sleeve regulating valve adopts a double-layer sealing structure, consisting of a multi spring pneumatic thin film actuator and a low flow resistance precision small sleeve regulating valve body. The multi spring actuator is low in height, light in weight, and easy to equip. The flow channel of the compact valve body is S-shaped
Product Details
ZJHM pneumatic sleeve regulating valve
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| ZJHM pneumatic sleeve regulating valve |
1、 Overview of Pneumatic Sleeve Regulating Valve Products
The ZJHM pneumatic sleeve regulating valve produced by Shanghai Yuhu Company adopts a double sealed structure, consisting of a multi spring pneumatic thin film actuator and a low flow resistance precision small sleeve regulating valve body, which is also known as a pneumatic thin film sleeve regulating valve. Multi spring actuators have low height, light weight, and easy equipment. The flow channel of the precision small valve body is S-shaped, and the pneumatic sleeve regulating valve has the advantages of compact structure, light weight, sensitive action, small pressure drop loss, large valve capacity, precise flow characteristics, and easy maintenance, which can be used in harsh working conditions. Pneumatic thin film sleeve regulating valve is particularly suitable for situations with low leakage requirements and large pressure difference before and after the valve. The main features of pneumatic sleeve regulating valve are as follows:
(1) Adopting a balanced double sealed valve core, it allows for large pressure differences and stable operation under unbalanced forces.
(2) The large guiding surface of the valve core can improve the oscillation caused by eddy currents and impacts.
(3) Reduce noise by about 10dB compared to ordinary single or double seat regulating valves.
(4) The structure is simple and easy to assemble, disassemble, and maintain.
2、 Technical parameters of pneumatic sleeve regulating valve
(1) Valve body parameters
| Nominal diameter (DN) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Valve seat diameter (dn) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |
| Rated flow coefficient (KV) | straight line | 10 | 11 | 17.6 | 27.5 | 44 | 69 | 110 | 176 | 275 | 440 | 630 | 1000 | 1600 |
| Wait for percentage | 6.3 | 10 | 16 | 25 | 40 | 63 | 100 | 155 | 250 | 370 | 580 | 900 | 1300 | |
| Allowable pressure difference (MPa) | 6.4 | 6.4 | 5.2 | 5.2 | 4.6 | 4.6 | 3.7 | 3.7 | 3.5 | 3.1 | 3.1 | 2.6 | 2.2 | |
| Nominal pressure (MPa) | 1.6, 2.5, 4.0, 6.4, 10.0 | |||||||||||||
| Rated stroke (mm) | 16 | 25 | 40 | 60 | 100 | |||||||||
| Equipped with actuator model | ZHA/B-22 | ZHA/B-23 | ZHA/B-34 | ZHA/B-45 | ZHA/B-56 | |||||||||
| Valve cover form | Standard Type (-17~+250 ℃), High Temperature Type (+250~+450 ℃), Low Temperature Type (-40~-196 ℃), Bellows Sealed Type (-40~+350 ℃) | |||||||||||||
| Cover form | Bolt compression type | |||||||||||||
| Sealing packing | V-shaped polytetrafluoroethylene packing, V-shaped flexible graphite packing | |||||||||||||
| Valve body material | Cast steel (WCB), stainless steel (CF8, CF8M, CF3, CF3M), chromium molybdenum steel, cast steel lined with PTFE (WCB+F46) | |||||||||||||
(2) Valve internal component parameters
| Valve core form | Sleeve guided valve core |
|---|---|
| flow characteristics | Linear, equal percentage |
| Valve core material | Stainless steel (304, 316, 316L) |
(3) Actuator parameters
| Configure actuator category | ZHA/B multi spring membrane actuator | ||||
|---|---|---|---|---|---|
| Model of actuator | ZHA/B-22 | ZHA/B-23 | ZHA/B-34 | ZHA/B-45 | ZHA/B-56 |
| Effective area (cm2) | 350 | 350 | 560 | 900 | 1400 |
| Stroke (mm) | 10. 16 | 24 | 40 | 40, 60 | 100 |
| Spring range (KPa) | 20-100 (standard), 20-60, 60-100, 40-200, 80-240 | ||||
| Membrane material | Nitrile rubber with nylon cloth, ethylene propylene rubber with nylon cloth | ||||
| gas supply pressure | 140~400KPa | ||||
| air connection | RC1/4' | ||||
| ambient temperature | -30～+70℃ | ||||
| Can be equipped with accessories | Positioner, air filter pressure reducer, holding valve, travel switch, valve position transmitter, handwheel mechanism, etc | ||||
| mode of action | Gas closed type (B) - valve position open when gas is lost (FO); Pneumatic opening (K) - valve position closed in case of gas loss (FC) | ||||
3、 Performance indicators of pneumatic sleeve regulating valve
| project | Without locator | Equipped with locator | ||
|---|---|---|---|---|
| Basic error% | ±5.0 | ±1.0 | ||
| Return difference% | ≤3.0 | ≤1.0 | ||
| Dead zone% | ≤3.0 | ≤0.4 | ||
| Constant point deviation% | air open | starting point | ±2.5 | ±1.0 |
| starting point | ±5.0 | ±1.0 | ||
| Qi Guan | starting point | ±5.0 | ±1.0 | |
| destination | ±2.5 | ±1.0 | ||
| Rated travel deviation% | ≤2.5 | |||
| Leakage rate L/h | 0.01% x valve rated capacity | |||
| Adjustable range R | 50：1 | |||
Kind reminder: If you need detailed product information, please contact our technical or sales department,.
Related names: ZJHM Pneumatic Sleeve Control Valve, Pneumatic Thin Film Control Valve, Pneumatic Steam Control Valve
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