Plug valve SCVB120

hydraulicfor controlpilot

SINGLE COUNTERBALANCE VALVE FOR OPEN CENTER WITH SCVB OVERCENTER VALVE SIMPLE EFFECT FOR HYDRAULIC MOTORS, NOT COMPENSATED, FLANGED OMP/OMR With the Oleoweb VBFP counterbalance valves it is possible con control the movement of a hydraulic motor or a winch and to support a suspended load by eliminating vibrations or too fast and dangerous lowering. SCVB valve is equipped with a flanged surface which allows to install it directly on hydraulic motors OMP/OMR. he single overcenter valves of the SCVB series are designed to guarantee stability in the working position and control the rotation of a unidirectional hydraulic motor, leaving the opposite side fed by free flow; thanks to the flanged surface, designed according with standard OMP/OMR, the valve can be installed directly on the hydraulic motor with benefits on its performance. 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. The SCVB single overcenter valve also works as an antishock valve in the presence of pressure peaks caused by impacts or excessive loads. For this to be possible, the return line on the distributor must be connected to the drain. The SCVB is a not-compensated valve: any residual pressures on the return line counteract the opening of the valve and rises its setting and piloting values. The use of this type of valve is therefore recommended in systems with DCV with an open center spool.