Emerson Alco 054079 Expansion Valve

The Emerson Alco 054079 is a professional-grade TCLE 7-1/2 HW100 thermostatic expansion valve designed for high-capacity light commercial refrigeration and air conditioning. Engineered for R22 refrigerant systems, this 7.5-ton TXV features the signature T-Series take-apart construction, allowing for streamlined field service and component replacement without de-brazing the entire assembly. It utilizes a medium temperature charge and is externally equalized to ensure precise superheat control across varying evaporator loads. The 5-foot capillary tube provides ample reach for remote bulb mounting on the suction line, while the 450 PSIG maximum working pressure offers the durability required for demanding environments. This valve is supplied "less flange," giving technicians the flexibility to select the appropriate body flange for specific pipe sizing and connection needs.

• Take-Apart Design: Simplifies maintenance by allowing for easy inspection or replacement of the power assembly and internal cage.
• Stainless Steel Power Element: Resists corrosion and mechanical fatigue to prevent premature valve failure in high-humidity applications.
• External Superheat Adjustment: Provides manual control to fine-tune system efficiency and ensure optimal refrigerant flow.
• Bi-Flow Capability: Versatile enough for use in heat pump applications where flow direction alternates during cycles.
• Balanced Port Construction: Minimizes the effects of fluctuating head pressures, maintaining stable evaporator temperatures.

Is the flange included with this model?
No, the Emerson Alco 054079 is sold as a "valve less flange." You must reuse your existing T-Series flange or purchase the correct size for your application.

What is the HW100 charge best suited for?
The HW100 charge is a medium temperature, pressure-limiting charge specifically calibrated for R22. It helps prevent compressor motor overload during high-load startups.

Can this be used with R407C systems?
While originally designed for R22, many veteran technicians utilize the TCLE series for R407C due to similar pressure-temperature relationships, though it is best practice to confirm specific superheat settings for the substitute refrigerant.

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.