Alco EX5-U21 electronic control valve stepper motor powered

€277.00

Tax excluded

EX5-U21 Alco electronic control valve stepper motor powered Emerson 800618

As today’s systems require improved energy efficiency, tighter temperature control, a wider range of operating conditions and incorporate new features like remote monitoring and diagnostics,

the application of electronically operated valves becomes mandatory.

Only these offer the controls performance necessary to meet these needs. Electrical control valves are actuators only.

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Description

Alco EX5-U21 electrical control valve 800618 Emerson

Stepper motor powered, hermetically sealed valve.
Continuous modulating precision, no pulsation control (fluid strokes).
Control range: 0-100% with short opening and closing time, full shutdown function.
For capacities: 1 ... 613 kW.
Expansion valve.
Suction pressure regulator.
Condenser pressure regulator.
Hot gas regulator.
For use with:
EC3-X3X overheat control.
Universal driver module EXD-you.
EC3-332 Cells controller.
Other controls.
power supply: 24 Vac (3.5 W/0.5 A).
Connection: Bi-polar.
Max. working pressure:-1 to + 40 bar (44 bar test pressure).
Max. differential pressure: 30 bar (MOPD).
Medium temperature:-50 ° c to + 65 ° c.
Ambient temperature:-40 ° c to + 55 ° c.
Valve characteristic: almost linear.
Refrigerants: R134a/R404A/R507/R22/R407C/R410A/R744.
connections in: 5/8
connections: 7/8
Emerson electrical control valves EX4, EX5, EX6, EX7 andEX8 are optimized for the control of liquid or gaseous massflow in refrigeration systems. T
he stepper motor, whichproduces a precise valve opening, is energized directly fromthe electrical power and therefore operates independentfrom differential pressure ensuring stable operation at lowcondensing pressures.
The valve seat and slider are made of solid ceramic for longlife, low operating force, low internal leak rate and toeliminate corrosion.
The positive shut off function and fastresponse time eliminate the need for an additional solenoidvalve.
The special shape of the valve slide provides for properflow through the valve and a highly linear capacity characteristicbetween 10% and 100% of maximum capacity.