Quality in the water network

English
Plunger flow control valve
The plunger flow control valve is mainly designed for the water flow regulation in a pipeline.
The needle-valve is mainly designed for the water flow regulation 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 center of the body valve and steers in a chamber properly shaped in order to avoid noises and cavitations damages. This characteristic confers to the valve regular operation free from vibrations.
The water flow is guided in a annular chamber around the streamlined central body. The cross section of this chamber is continuously reducing from inlet to the throttle. This causes continuous  rises of flow speed and fall of the pressure. The geometrically ideal design, confines the cavitations bubbles in the center 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:
FBE coating process with epoxy resin powder of blue colour RAL 5015 and minimum thickness 300 μm.