Electronic

Alco control valve electronic Biflow EX7-U31 35x35mm 800626

Order No.: 231.0252
Manufacturer number: 800626
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
  • 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
Bi-flow (Wärmepumpen)
Performance adjustment range
10 bis 100%
Connections
Electrical connection
M12 Stecker
Pressure
max. operating pressure
60 bar
max. operating pressure difference (MOPD)
35 bar
Performance data
Nominal capacity
Qn
25 to 230 kW
refrigerant=R 404A
 
25 at 230 kW
refrigerant=R 507A
 
35 to 347 kW
refrigerant=R 407C
 
40 to 385 kW
refrigerant=R 410A
 
25 to 255 kW
refrigerant=R 134A
 
70 to 670 kW
refrigerant=CO2
Pipe connections
Outlet
Solder
1 3/8"
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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