This torque limiter has been designed to provide horsepower control for mobile and industrial applications of P1/PD series pumps. This option allows the use of smaller, more energy-efficient prime movers. The limiter adjusts flow in the circuit to keep the prime mover from stalling under heavy loads, reducing the maximum horsepower available while handling the same load. Using the pump’s hanger angle, the limiter monitors both pressure and displacement. As pressure rises, flow is reduced according to the zero-adjustment spring rate of the limiter. When pressure reaches its full value, the system’s compensator assumes control.
