Emerson Alco 062718 Expansion Valve

The Emerson Alco 062718 (Model TRAE+ 10 HC 5FT 5/8 X 7/8 ODF S/T) is a heavy-duty, large-capacity thermostatic expansion valve engineered for high-demand R22 and R407C systems. Built with a double balanced port design, this 10-ton valve compensates for fluctuating head pressures and varying evaporator loads, ensuring stable superheat control even in partial load conditions. It features a 5/8" x 7/8" ODF sweat connection with a straight-through body configuration for streamlined piping. The externally equalized 1/4" ODF connection allows for precise pressure sensing downstream of the evaporator, mid-range temperature optimization, and improved system pulldown. A stainless steel power element provides superior resistance to corrosion and environmental degradation, while the 5-foot capillary tube offers flexible bulb placement for accurate thermal feedback. This valve is fully serviceable with a replaceable power element and cage assembly, allowing technicians to maintain peak system performance without full component replacement.

• Double Balanced Port Design: Maintains consistent 10-ton capacity and stable superheat across wide pressure drops and varying ambient temperatures.
• Field Serviceability: Features a replaceable cage assembly and power element, reducing downtime during maintenance.
• Corrosion Resistance: The stainless steel power assembly is built to withstand harsh environments better than standard brass or copper elements.
• Bi-Flow Capability: Versatile design suitable for heat pump applications, ensuring reliable refrigerant metering in both heating and cooling cycles.
• Precise Metering: Square body with an external superheat adjustment allows for fine-tuning based on specific site requirements.

What refrigerants is the TRAE+ 10 HC compatible with?
This valve is specifically designed for R22 and R407C applications. R407C is frequently used as a retrofit for R22, and the HC charge is optimized for these medium-temperature range systems.

Is this valve suitable for heat pump applications?
Yes, the TRAE+ series is a bi-flow valve, meaning it provides accurate refrigerant control in both flow directions, which is critical for heat pump systems.

What is the purpose of the external equalizer on this model?
The 1/4" ODF external equalizer is necessary for systems with high pressure drops across the evaporator or distributor. It ensures the valve responds to the actual pressure at the evaporator outlet rather than the valve outlet.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.