Monthly Archives for January 2010

Hydraulic Flow Control Valves

Flow control valves are used in constant-flow (fixed displacement pump) circuits to control actuator speed. The simplest type of flow control valve is a needle valve. Another name for a needle valve is a non-pressure-compensated flow control valve. Turning the … Continue reading

27. January 2010 by and
Categories: Fluid Flow | Tags: | Leave a comment

Hydraulic Servo Valves

Servo valves are a close relative of the proportional valve and are based on an electrical torque motor which produces a small deflection proportional to the electrical current through its coil. They commonly use feedback between the main and pilot … Continue reading

06. January 2010 by and
Categories: Fluid Flow | Tags: | Leave a comment