Level Control Valve

Level Control Valve

AREA OF APPLICATIONS

The pneumatic control valve is used for   general purpose control and safety applications such as:-

  • Remote start/stop of flow.
  • Pressure relief.
  • Flow control.
  • Pressure control.
  • Level control.
  • Excess-flow shutdown.

PRINCIPLES OF OPERATION

The control system consists on: –

  • A flow, level, S.G or pressure transmitter with an analogue output of 4-20 mA.
  • An analogue switch receiving the signal from the transmitter, to close or open a set of N/C or N/O contacts.
  • A 4/3 directional solenoid valve, activated by the analogue switch to determine the N.G.D valve’s control position.

INTEGRATED ACTUATOR

The N.G.D pneumatic valve’s actuator is a natural and integrated part of the valve. This type of actuator is ideal for plants or pump stations, where compressedair source can energise many valves.

ADVANTAGES

  • Off-the-shelf standard variety of pneumatic valves, fittings and pneumatic components to enable any control or safety applications.
  • Cost effective and reliable actuating and control system
  • Low pressure actuating and control system.

DISADVANTAGES

  • Compressed air can be contaminated or subjected to condensation.
  • Low actuating forces due to limited compressed air pressure.