Control Valves -

Plunger type Control Valve

Plunger type Control Valve

The plunger flow control valve is primarily designed for the regulation of water flow in a pipeline. The flow regulation happens through the axial movement of a piston, operated by a rod and crank mechanism. The piston is positioned in the centre of the valve-body and steers in a properly-shaped chamber in order to avoid noises and cavitation-related damages. This characteristic confers to the valve regular operation free from vibrations. The water flow is guided in an annular chamber around the streamlined valve-body. The cross section of this chamber is continuously reducing from inlet to the throttle. This causes continuous rise of flow speed and fall of the pressure. The geometrically ideal design, confines the cavitation bubbles in the centre of the outlet mouth, avoiding damages to the valve.

Design standard : EN 1074-1, EN 1074-5
Flanges : EN 1092-2
Tests : EN 12266-1
Surface protection: Coating process with epoxy powder of blue colour RAL 5015 with a minimum thickness 300 μm.


  • Here we can set the required flow in the controller.
  • The flow sensor attached in the pipeline measures and transmits the flow data to the controller.
  • Controller compares the data with the setpoint and a corrective signal is sent to the valve actuator.
  • As per the corrective signal received, the actuator will adjust the position of the valve to attain the required flow.
  • Hence, the flow is controlled.


  • Set the required pressure in the controller.
  • The pressure sensors attached in the upstream and downstream side of the valve sense and transmit the pressure data to the controller.
  • Controller compare the data with the set point (required pressure) and send the corrective signal to the valve acutator.
  • As per the signal received the actuator will correct the position of the valve to achieve the required pressure.
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