Electronic

Alco control valve electronic EX8-U21 35x35mm 800630

Order No.: 231.0259
Manufacturer number: 800630
Manufacturer: Alco

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Description

The EX4 / EX5 / EX6 / EX7 / EX8 stepped motor controlled electronic regulation valves from ALCO CONTROLS precisely control the flow of refrigerant in refrigeration and air conditioning application, industrial process cooling as well as in heat pumps and cooling equipment for IT facilities. ...

The EX4 / EX5 / EX6 / EX7 / EX8 stepped motor controlled electronic regulation valves from ALCO CONTROLS precisely control the flow of refrigerant in refrigeration and air conditioning application, industrial process cooling as well as in heat pumps and cooling equipment for IT facilities. They can be used as expansion valves, reinjection valves, hot gas bypass regulators, evaporating pressure or starting pressure regulators and as condensing pressure regulators or fluid level regulators.

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Features

  • Multifunction valves, for use as expansion valve, hot gas bypass regulator, evaporator or condenser pressure regulator, etc.
  • Fully hermetic design (no screw connections between the valve body and motor part)
  • For use with all common refrigerants (HFC, CFC) and subcritical CO2 applications
  • Stepped ...
  • Multifunction valves, for use as expansion valve, hot gas bypass regulator, evaporator or condenser pressure regulator, etc.
  • Fully hermetic design (no screw connections between the valve body and motor part)
  • For use with all common refrigerants (HFC, CFC) and subcritical CO2 applications
  • Stepped motor operation
  • Very fast opening and closing times
  • Good precision and excellent repeat accuracy
  • Biflow versions for heat pumps
  • Closing function means an additional solenoid valve is not required
  • Flow rate linearly proportional to step rate
  • Large regulating range (10 ... 100%)
  • Proportional regulation of mass flow avoids refrigerant hammering in the refrigeration circuit
  • Motor and valve directly coupled for excellent reliability (no gears)
  • Valve slider and seat made from ceramic for minimal throughput losses and low wear
  • Patented in Europe (no. 0743476), USA (no. 5735501)
  • Corrosion-resistant stainless steel housing
  • PS: 45 bar
  • TS: Uniflow: -50 to +100 °C, Biflow: -40 to +80 °C

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Accessories / Replacement parts

  • Connection cable
    Alco connection cable with plug EXV-M15 1,5m for EX valves from 2009 804663
    Order No.: 231.0260
  • Alco connection cable with plug EXV-M30 3,0m for EX valves from 2009 804664
    Order No.: 231.0261
  • Alco connection cable with plug EXV-M60 6,0m for EX valves from 2009 804665
    Order No.: 231.0262
  • Control
    Alco Universal Ventil Treiber Kit EXD-U02 Kit
    Order No.: 231.0285
  • Alco Universal Schrittmotorsteuerung EXD-U02 804752
    Order No.: 298.0299
  • Power-Modul
    Alco power-module f. EXD-SH EXD-PM 807854
    Order No.: 298.0293
  • Regulator
    Alco superheating regulators EXD-SH1 807855
    Order No.: 231.0273
  • Alco superheating regulators EXD-SH2 807856
    Order No.: 231.0274
  • Uninterruptible power supply
    Alco uninterruptible power supply ECP-024 without terminals 804558
    Order No.: 298.0258

Technical data

General information
Flow direction
Uni-flow
Performance adjustment range
10 bis 100%
Connections
Electrical connection
M12 Stecker
Pressure
max. operating pressure
45 bar
max. operating pressure difference (MOPD)
30 bar
Performance data
Nominal capacity
Qn
60 to 613 kW
refrigerant=R 404A
 
60 to 613 kW
refrigerant=R 507A
 
85 to 857 kW
refrigerant=R448/R449A
 
100 to 925 kW
refrigerant=R 407C
 
100 to 1027 kW
refrigerant=R 410A
 
70 to 680 kW
refrigerant=R 134A
 
60 to 600 kW
refrigerant=R 450A
 
61 to 614 kW
refrigerant=R 513A
 
66 to 666 kW
refrigerant=R 452A
 
180 to 1789 kW
refrigerant=CO2
 
53 to 532 kW
refrigerant=R1234ze
Pipe connections
Outlet
Solder
1"
inch
 
35
mm
Inlet
ODF
1 3/8"
inch
 
35
mm
Technical modifications reserved. Product images may differ from the actual product and are meant for demonstration purposes only. Absolutely no liability can be assumed for possible indication errors and errors in the manufacturers’ information.

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