Abstract: A rotary two-way servovalve provides a continuously variable orifice size in response to an input rotation while minimizing actuation torque. The valve is comprised of a cylindrical spool which is fitted to and rotates within a bore in a body. Fluid is fed into an axial hole in the spool through an inlet groove and cross holes and is metered out through one of a pair of diametrically opposed metering slots depending upon the angle of rotation. The second slot is provided to balance the pressure forces on the spool. Other features are a pivot which provides the axial location of the spool in the body while also sealing the spool, and a drain hole to prevent pressure from moving the spool axially. The valve is intended to be driven by an electrical rotary actuator such as a step motor, servo motor, or a limited angle torque motor.