Moog is a leader in the development and manufacture of high-performance hydraulic valves. Our Servo and Proportional Valves are continuous valves, characterized by output variables (spool position, pressure, volume flow) proportional to the input signal. This is achieved by feedback of the spool position into a mechanical or electrical control loop.
Moog servo valves feature a valve spool inserted into a bushing (spool-in-bushing). This allows for outstanding dynamics and excellent accuracy.
Moog proportional valves use a valve spool fitted directly in the valve housing (spool-in-body). This makes proportional valves particularly suitable for higher nominal volume flows.
Both designs are available in a variety of standard and custom sizes, both as direct operated and pilot operated valves and with different performance characteristics. Moog valves, whether servo valves or proportional valves, enable high-precision control of position, velocity, pressure and force in a wide range of applications.
