Hydraulic Motor-Operated Control Valve

Hydraulic Motor-Operated Control Valve

The point at which pump out pressure exceeds load is sensed to provide a point for scheduling flow to an actuator in a hydraulic system. Flow is controlled by a stepper motor that moves a flow control valve. The steps needed to achieve fixed flow changes are greater for high flow positions. When the pump is turned on, the valve is positioned to bypass flow; the bypass flow is then programmably decreased to the actuator. Reverse flow is regulated by the valve to control actuator retraction. Reverse flow is initiated by opening a check valve with an actuator that opens it first to reduce pressure across the valve, then fully. The flow control valve  also operates to relieve excess pressure in the system. During a descent the stepper rate is started at a first stored rate for worse conditions, the car velocity is measured and successive stored rates are increased or decreased.

Motor Operated Valves are designed to control the flow of a liquid, solid or gas through a piping system. Motor Operated Valves are manufactured in a wide variety of standard sizes or to meet customer requirements/specifications. Motor Operated Valves have the ability to operate in the most extreme conditions.

Hydraulic Motor-Operated Control Valve may be mounted in the pipelines performing a function of motor- operated remote-control turning on and off, it may also be equipped with a speed regulating facility and substitute the large-scale motor-operated facilities in a open-close brake or a butterfly valve.