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.

FEATURES

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)

Accessories

Specifications

Parameter

Model No.	EX
Refrigerant	R22,R134A,R513A,R513B,R513A
Pressure Equaliser	Internal / External
MOP	with / without
Mwp	Ex4-Ex7:870psig;Ex8:650psig
Operating Humidity	5 to 95% R.H.
Trademark	Emerson copeland
Origin	China