Plug valve VCLH series

hydraulicfor controlpilot

SINGLE COUNTERBALANCE VALVE FOR CLOSED CENTER VCLH OVERCENTER VALVE SIMPLE EFFECT SEMI-COMPENSATED WITH SINGLE FLANGING (LOAD) Through the Oleoweb VCLH balancing valves it is possible to support suspended loads and control their movement during the descent, eliminating vibrations or lowering too fast and which could generate dangerous situations. The VCLH valve is equipped with BSPP-GAS threaded ports for the connection of the hydraulic pipes, while a flanging surface allows the connection of the load line directly on the cylinder. The single overcenter valves of the VCLH series are designed to ensure the stability in the working position of a hydraulic actuator with suspended load, and to control its movement in only one direction (usually the descent phase), leaving the opposite side powered by free flow; thanks to the BSPP-GAS threaded ports, it can be installed in-line into the hydraulic system. The flanged surface allows to install the valve directly on the cylinder, on the load line. By feeding the line opposite the load, the pilot line manages the partial opening of the descent channel allowing control of the actuator movement and avoiding the phenomenon of cavitation thanks to the action of contrasting the gravitational force. A calibrated hole dampens the pilot signal so that the valve opens and closes proportionally,