Description:

The GE Fanuc Emerson EX8-M21 electronic expansion valve is used in industrial refrigeration and HVAC systems to precisely control refrigerant flow based on system demand. Commonly installed in chillers, heat pumps, and cooling systems where accurate superheat control and system efficiency are critical. Maintenance teams and system integrators use this valve for refrigeration system optimization, energy efficiency improvements, and replacement of failed or outdated expansion valves.

Applications:

The GE Fanuc Emerson EX8-M21 is commonly used in refrigeration systems, HVAC units, heat pumps, cold storage facilities, and industrial process cooling applications where precise refrigerant flow control is required to maintain temperature stability and system performance.

Technical Specifications:

• Manufacturer Part Number (MPN): EX8-M21
• Product Type: Electronic Expansion Valve
• Series: Emerson EX8 Series
• Control Type: Stepper motor-driven valve
• Voltage: 24 VDC
• Refrigerant Compatibility: R134a, R404A, R407C, R410A, R507
• Max Operating Pressure: ~45 bar
• Flow Control Range: 10–100% modulation
• Connection Type: Brazed or ODF fittings
• Control Interface: External controller required (stepper driver)
• Mounting Type: Inline piping installation
• Application Environment: Industrial refrigeration and HVAC systems

Common Replacements:

• Emerson EX8-U21
• Danfoss ETS Series
• Carel EEV Series