EX4-EX8 Series Stepper Motor Driven Valves

The EX4-EX8 are stepper motor driven valves that are 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..

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097719
EX4-I21 800615, EX4-EX8 Series Stepper Motor Driven Valves
Product Category
Refrigerant Expansion Valves
Model Number
EX4-I21 800615
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EX4-EX8 Series Stepper Motor Driven Valves
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Refrigerant Expansion Valves
EX4-I21 800615
EX4-EX8 Series Stepper Motor Driven Valves
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097720
EX5-U21 800618, EX4-EX8 Series Stepper Motor Driven Valves
Product Category
Refrigerant Expansion Valves
Model Number
EX5-U21 800618
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EX4-EX8 Series Stepper Motor Driven Valves
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Refrigerant Expansion Valves
EX5-U21 800618
EX4-EX8 Series Stepper Motor Driven Valves
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097721
EX6-I21 800620, EX4-EX8 Series Stepper Motor Driven Valves
Product Category
Refrigerant Expansion Valves
Model Number
EX6-I21 800620
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EX4-EX8 Series Stepper Motor Driven Valves
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Refrigerant Expansion Valves
EX6-I21 800620
EX4-EX8 Series Stepper Motor Driven Valves
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097722
EX7-I21 800624, EX4-EX8 Series Stepper Motor Driven Valves
Product Category
Refrigerant Expansion Valves
Model Number
EX7-I21 800624
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EX4-EX8 Series Stepper Motor Driven Valves
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Refrigerant Expansion Valves
EX7-I21 800624
EX4-EX8 Series Stepper Motor Driven Valves
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097723
EX8-I21 800631, EX4-EX8 Series Stepper Motor Driven Valves
Product Category
Refrigerant Expansion Valves
Model Number
EX8-I21 800631
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EX4-EX8 Series Stepper Motor Driven Valves
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Model Number
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Refrigerant Expansion Valves
EX8-I21 800631
EX4-EX8 Series Stepper Motor Driven Valves
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097729
EX5-U31 800619, EX4-EX8 Series Stepper Motor Driven Valves
Product Category
Refrigerant Expansion Valves
Model Number
EX5-U31 800619
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EX4-EX8 Series Stepper Motor Driven Valves
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Model Number
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Refrigerant Expansion Valves
EX5-U31 800619
EX4-EX8 Series Stepper Motor Driven Valves
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097756
EX4-U31 800617, Electronic Expansion Valves
Product Category
Refrigerant Expansion Valves
Model Number
EX4-U31 800617
Family
EX4-EX8 Series Stepper Motor Driven Valves
Product Category
Model Number
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Refrigerant Expansion Valves
EX4-U31 800617
EX4-EX8 Series Stepper Motor Driven Valves
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097758
EX7-U31 800626, EX4-EX8 Series Stepper Motor Driven Valves
Product Category
Refrigerant Expansion Valves
Model Number
EX7-U31 800626
Family
EX4-EX8 Series Stepper Motor Driven Valves
Product Category
Model Number
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Refrigerant Expansion Valves
EX7-U31 800626
EX4-EX8 Series Stepper Motor Driven Valves
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Features

  • Fully hermetic design
  • Fast full stroke time
  • Applicable to all common refrigerants (HCFC, HFC), for subcritical CO2 applications
  • 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)

Specifications

CE Marking
EX4/EX5 not required, EX6-EX8 required Cat I, Module A
MOPD
EX4-EX6 580 psid, EX7 507 psid, EX8 435 psid
MWP
EX4-EX7 870 psig, EX8: 650 psig
Ambient Temperature
-40°F to +130°F
Operating Humidity
5 to 95% R.H.
External Leakage
0.1 oz./yr. (R-22)
Stepper Motor Type
Bipolar, phase current by chopper control (constant current)
Connectors
4 pin terminal via plug
Driver Supply Voltage
24 Vdc Nominal, Range: 18-36 Vdc
Phase Current (Operating)
EX4-EX6, 500 mA max, EX7 750 mA, EX8 800 mA

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