Emerson Copeland Series Stepper Motor Driven Valves
The EX4-EX8 Series are bi-polar stepper motor driven valves optimized for the control of liquid or gaseous mass flow in refrigeration systems. Multifunction capability as expansion valve, hot gas bypass, suction gas throttling, head pressure, liquid line actuator and other applications systems.
Fully hermetic stainless steel design
Fast full stroke time
Ceramic slide and port for accurate flow and minimal wear
High resolution and excellent repeatability
Bi-directional versions for heat pump applications
Positive shut-off function to eliminate the use of an additional solenoid valve
Linear flow capacity
Wide capacity range (10 - 100%)
Continuous modulation of mass flow, no stress (liquid hammering) in the refrigeration circuit
Direct coupling of motor and valve for high reliability (no gear mechanism)
|Internal / External
|with / without
|5 to 95% R.H.