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ZJH Series Pneumatic Diaphragm Control Ball Valve
Pneumatic diaphragm control valvecomprises a multiple spring zero adjustable actuator, a low flow resistance sleeve and a single seat regulation valve without lower cover. The flow capacity increases by 1/3. It's of low center of gravity, high vibration resistance and easy for installation. The performance indexes are superior to products of the same kind. The products are widely used in automatic production control system in industrials including chemistry, petroleum, light industry, power station, metallurgy.
We will try our best to provide the high quality and high tech pneumatic control valve for your various project for flow control.
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- Inherent Regulation Ratio:50:1
- Nominal Pressure :1.6 / 4.0 / 6.4 MPa
- Service Temperature:-100~-60℃; -200~-100℃; -250~-200℃
- Ambient Temperature:-30~70℃
- Air Supply Pressure :0.14 / 0.25 / 0.40 KPa
- Spring Range:20~100(Basic type) / 40~200 / 80~240 KPa
Features Of ZJH Series Pneumatic Diaphragm Control Ball Valve:
● Globe valve driven by pneumatic control which could allow your automation more easier and help your control the medium more precise
● Available in single seat type and sleeve type for your choice
|Nominal Size DN (mm)||20||25||32||40||50||65||80||100||125||150||200||250||300|
|Rated Flow Coefficient CV||High accuracy flow characteristic clack||1.6||2.5||4.0||6.3||10||17||24||44||68||99||175||275||360||630||900||1440|
|High capacoty flow characteristic clack||1.8||2.8||4.4||6.9||11||21||30||50||85||125||200||310||440||690||1000||1600|
|Effective Diaphragm Area cm2||280||400||630||1000||1600|
|Inherent Regulation Ratio||50:1|
|Nominal Pressure MPa||1.6 / 4.0 / 6.4|
|Sevice Temperature||-100~-60℃; -200~-100℃; -250~-200℃|
|Air Supply Pressure KPa||0.14 / 0.25 / 0.40|
|Spring Range KPa||20~100(Basic type) / 40~200 / 80~240|
|Connection Thread||G1/4" , M16X1.5|
1. Major performance indexes shall be as shown in below table
2. Testing shall be conducted according to the specification of GB/T4213-92
|Serial No.||Technical Performance||Without Positioner||With Positioner|
ZJHP Type: ≤1X10-4Rated Flow
ZJHM Type:≤1X10-3 Rated Flow
|5||Rated Flow Coefficient||≤±10%|
|6||Inherent Flow Characteristic||Slope±30%|