Emerson Alco 058123 Expansion Valve

The Emerson Alco 058123 Expansion Valve is a high-performance thermostatic expansion valve (TXV) engineered for precision refrigerant metering in medium-temperature commercial refrigeration applications. Designed with a balanced port configuration, this HFESC 1/4 SC model ensures stable superheat control across a wide range of operating conditions, making it an essential component for technicians servicing systems running on R404A, R507, R448A, and R449A. Featuring a 3/8" x 1/2" ODF sweat connection and a 5' capillary tube, this valve provides the flexibility needed for various evaporator layouts. The externally equalized design allows for accurate pressure sensing at the evaporator outlet, compensating for pressure drops and preventing compressor floodback. With its 1/4 ton capacity and 90-degree angle flow configuration, the Emerson Alco 058123 is a reliable choice for maintaining optimal system efficiency and protecting vital hardware in demanding environments.

• Multi-Refrigerant Compatibility: Optimized for use with R404A, R507, R448A, R449A, and R502, providing versatile application across diverse medium-temperature systems.
• Balanced Port Design: Delivers consistent superheat control and prevents hunting, even during fluctuating head pressures or varying load conditions.
• Stainless Steel Power Element: The HF series utilizes a durable stainless steel power assembly to resist corrosion and ensure long-term mechanical integrity.
• Precise Metering: Externally equalized connection ensures accurate refrigerant flow by referencing the actual pressure at the evaporator outlet.
• Serviceability: Features a 90-degree angle configuration and sweat connections for secure, leak-free installation in tight mechanical spaces.

Is the superheat adjustable on the HFESC 1/4 SC?
Yes, this professional-grade valve features an external superheat adjustment, allowing technicians to fine-tune the system to specific load requirements on-site.

What is the benefit of the 5-foot capillary tube?
The extended capillary length provides greater mounting flexibility for the sensing bulb, ensuring it can be positioned at the ideal location on the suction line for accurate temperature feedback.

When should I use an externally equalized TXV like the 058123?
External equalization is required for any system where a significant pressure drop occurs across the evaporator or through a distributor, ensuring the valve maintains the correct superheat regardless of those losses.

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.