EX4-I21,EX5-U21,EX6-I21,PCN800620 Emerson Electrical Control Valves

EX4-I21,EX5-U21,EX6-I21,PCN800620 Emerson Electrical Control Valves Features

• Multifunction as expansion valve, hot gas bypass,
suction gas throttling, head pressure, liquid level
actuator etc
• Fully hermetic design (no thread joints between
valve body and motor compartment)
• Applicable to all common refrigerants (HCFC,
HFC) and for subcritical CO 2 applications
• Stepper motor driven
• Short opening and closing time
• Very fast full stroke time
• High resolution and excellent repeatability
• Positive shut-off function to eliminate use of 
additional solenoid valve
• Bi-flow versions for heat pump applications
• High linear flow capacity
• Extremely 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)
• Ceramic slide and port for highly accurate flow
and minimal wear
• Europe patent No. 0743476, USA patent
No. 5735501, Japan patent No. 28225789
• Balanced force design
• Corrosion resistant stainless steel body and 
stainless steel connections
• PS: 45 bar
• Liquid Inlet Temperature TS:
Uniflow: -50 to +100°C, Biflow: -40 to +80°C