COVNA Pneumatic Control Valve
What Is Control Valve?
The control valve is composed of an actuator and a control valve. According to the different actuators, it can be divided into pneumatic control valves and electric control valves. The regulating valve is suitable for air, water, steam, various corrosive media, mud, oil and other media. The main function of the regulating valve is to regulate the pressure, flow, temperature and other parameters of the medium.
Technical Parameter Of Pneumatic Control Valve:
Pneumatic control valve uses compressed air as power source, pneumatic cylinder as the actuator, and uses valve positioner, converter, solenoid valve, retainer valve, gas tank, gas filter and other accessories to drive the valve to achieve the switch value. Or proportional adjustment, receiving the control signal of the industrial automation control system to complete the adjustment of the pipeline medium: flow, pressure, temperature, liquid level and other process parameters. Pneumatic control valve is characterized by simple control, fast response, and intrinsically safe, without additional explosion-proof measures.
| Type | Single-seat, double seat, sleeve type |
| Size Range(Inch) | DN20 to DN200 (3/4" to 8") |
| Pressure | 16 / 40 / 64 bar (232 / 580 / 928 psi) |
| Temperature | Standard type: -20℃ to 200℃ (-4°F to 392°F)Low-temperature type:-60℃ to 196℃ (-76°F to 384.8°F)
Cooling type:-40℃ to 450℃ (-40°F to 842°F) |
| Connection Options | Flanged or Welded |
| Valve Material | WCB, CF8, CF8M, Cast iron |
| Seal Material | PTFE |
| Pneumatic Accessories | Positioner, F.R.L, pneumatic solenoid valve and limit switch |
| Flow characteristics | Equal percentage, linear, quick-opening |
| Actuator Type | Multi-spring diaphragm actuator |
| Actuator Action type | Direct action, reverse action |
| Spring range | 20 to100KPa, 40 to 200KPa, 80 to 240KPa |
| Supply pressure | 0.4 to 0.5MPa |
| Adjustable range | 50:1 |
Dimension Of Pneumatic Control Valve:
