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.