Emerson Electronic Expansion Valve EX6-I31 800622

EX6-I31 Electronic TX Valve 1-1/8" ODS

Part Number: 800622

The EX range of electronic control valves from Copeland are optimised for control of liquid or gaseous mass flow in refrigeration systems.

The stepper motor drive, which produces exact valve opening, is energised directly from the electrical power and therefore operates independent from differential pressure. 

The EX Series valves can be used in different control tasks, expansion valve for superheat control, suction pressure control for capacity control, liquid injection for desuperheating of compressor, condensing pressure control and hot gas bypass control to compensate excess compressor capacity and to ensure evaporating pressure does not go below a setpoint. 

The valve must be installed with the motor downward.

Product Specifications

Features：

Fully hermetic design

Stepper motor driven

High linear flow capacity

Wide capacity range

Maximum working pressure 6000 kPa

Extremely wide controlling range of 10 to 100%

Positive shut-off function to eliminate use of additional solenoid valve

Ceramic slide and port for highly accurate flow and minimal wear

Compatible with all CFC's, HCFCs, HFCs, HFOs, R744, mineral and POE lubricants

Application:Refrigerant

Pipe/Fitting Type:Valve

Valve Type:Expansion Control Valve

Model Number:EX6-I31*

Suitable For:Expansion Valve, Liquid Injection, Hot Gas By Pass Regulator, EPR Evaporator Pressure Regulator, CPR Crankcase Pressure Regulator, condensing pressure regulator and liquid duty, heat reclaim application

ALCO Controls EX4 / EX5 / EX6 / EX7 / EX8 are stepper motor driven valves for precise control of refrigerant mass flow in air conditioning, refrigeration, heat pumps, close control, and industrial process cooling applications. 

The Control Valves can be used as thermo-expansion duty, liquid injection duty, hot gas bypass, evaporator pressure regulator, crankcase pressure regulator, head pressure regulator, or liquid level control.

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