Emerson Alco 053317 Expansion Valve

The Emerson Alco 053317 (Model HFE 3 HC) is a high-performance externally equalized thermal expansion valve designed for precise refrigerant flow control in 3-ton R22 and R407C systems. Featuring an angle body configuration with 3/8" x 1/2" SAE flare connections, this TXV is engineered for durability in medium-temperature applications. The 5-foot capillary tube provides flexibility for various evaporator coil placements, while the HC charge ensures stable superheat control across a wide range of operating conditions. Built with a stainless steel power element to resist corrosion and prevent bellows failure, the HFE series is a reliable choice for contractors servicing commercial refrigeration and air conditioning units. Its external equalization compensates for pressure drops across the evaporator, maintaining high system efficiency and protecting the compressor from liquid slugging. When replacing a 3-ton TXV, this Alco valve offers the mechanical precision required for optimal heat transfer and consistent cooling performance.

Key Technical Benefits:

• Precise Superheat Control: The HFE 3 HC utilizes an externally equalized design to maintain accurate superheat settings, even in systems with high-pressure drops.
• Robust Construction: Features a laser-welded stainless steel power element for long-term reliability and leak prevention in demanding HVACR environments.
• Application Versatility: Optimized for R22 and R407C refrigerants in medium temperature settings, making it a versatile 3-ton expansion valve for field replacements.
• Ease of Installation: The angle body and SAE flare fittings allow for straightforward mechanical connections without the need for brazing in sensitive areas.

Common Questions:

Can I use this TXV on an R407C system that originally used R22?
Yes, the Emerson Alco 053317 is designed for compatibility with both R22 and R407C, provided the system capacity aligns with the 3-ton rating and the oil is compatible with the refrigerant change.

Why choose an externally equalized valve over an internal one?
An externally equalized TXV like the HFE 3 HC is necessary for evaporators with distributors or significant internal pressure drops to ensure the valve "sees" the true suction pressure for accurate metering.

What is the purpose of the HC medium temperature charge?
The HC charge is specifically calibrated to provide stable bulb control and prevent migration issues in medium temperature refrigeration applications, ensuring the valve responds accurately to load changes.

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.