ESR ELECTRONIC STEPPER REGULATOR

• A direct driven suction regulator that uses a linear actuating bi-polar stepper motor to move the piston. The stepper motor is actuated by a voltage pulse to energize each of the motor phases and move the piston in discrete .001 inch increments. When used as an EPR in individual supermarket display cases, the ESR, along with appropriate control electronics, provides state-of-the-art temperature control within less than ± 1°F of the desired setpoint temperature. 

• The ESR is compatible with many control electronics widely available in the market today. Applications for the ESR include case control, line-up and rack mounted control, as well as transportation applications on refrigerated trucks, trailers and containers.

• ESRs are also acceptable for use as hot gas bypass and head pressure, liquid hold-back valves. An ESR may NOT be used as an expansion device.