EX5-U21 800618, EX4-EX8 Series Stepper Motor Driven Valves

SKU: 097720

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..

Features

Fully hermetic design
Fast full stroke time
Applicable to all common refrigerants (HCFC, HFC), for subcritical R-744 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

Description: Bipolar Stepper Motor Driven Electrical Control Valve

Bi-directional: No

Inlet Connection Size: 5/8

Outlet Connection Size: 7/8

Capacities in Tons R-22 (10% - 100%): 1.4 - 14.2

Capacities in Tons R-23 (10% - 100%): 1.4 - 15.4

Capacities in Tons R-124 (10% - 100%): .9 - 8

Capacities in Tons R-134a (10% - 100%): 1.1 - 11.1

Capacities in Tons R-404A (10% - 100%): 1.1 - 10

Capacities in Tons R-407C (10% - 100%): 1.4 - 15.1

Capacities in Tons R-410A (10% - 100%): 1.7 - 16.5

Capacities in Tons R-744 (10% - 100%): 2.8 - 29

European Number: 800618

Approvals: EX4/EX5 not required, EX6-EX8 required Cat I, Module A

MOPD: EX4-EX6 580 psid, EX7 507 psid, EX8 435 psid

Maximum Working Pressure: EX4-EX7 870 psig, EX8: 650 psig

Ambient Operating Temperature: -40°F to +130°F

Operating Humidity: 5 to 95% R.H.

External Leakage: 0.1 oz./yr. (R-22)

Connectors: 4 pin terminal via plug

Input Voltage Range: Driver at 24 Vdc Nominal, Range: 18-36 Vdc

Operating Current: EX4-EX6, 500 mA max, EX7 750 mA, EX8 800 mA

Documents & Drawings