
Emerson Alco 055931 Expansion Valve
The Emerson Alco 055931, model HFES 2.5 HC, is a high-performance externally equalized thermal expansion valve designed for precision refrigerant flow control in medium temperature applications. Engineered for both R22 and R407C systems, this valve features a 2.5-ton nominal capacity and a straight body configuration with 3/8" x 1/2" ODF sweat connections. The heavy-duty stainless steel power element resists corrosion and prevents capillary tube fatigue, while the 5-foot capillary length provides installation flexibility in tight evaporator housings. As a balanced port TXV, it maintains stable superheat control across varying head pressures, making it a reliable choice for commercial refrigeration and air conditioning maintenance. This unit serves as the direct replacement for 109055, ensuring seamless mechanical compatibility during field retrofits. Utilizing a HC medium temp charge, it optimizes evaporator efficiency and prevents liquid slugging, ensuring long-term compressor protection and system stability for professional contractors.
Key Benefits
- Stable Superheat Control: The balanced port design compensates for fluctuating head pressures, maintaining precise refrigerant metering.
- Direct Drop-In Replacement: Specifically engineered to replace the Alco 109055 without requiring extensive piping modifications.
- Durable Construction: Features a stainless steel diaphragm and power element for superior resistance to corrosion and vibration-induced failure.
- Dual Refrigerant Compatibility: Rated for use with both R22 and R407C, providing versatility for legacy systems and retrofits.
- External Equalization: Optimizes performance in systems with high pressure drops across the evaporator coil.
Common Questions
Is the HFES 2.5 HC compatible with R410A systems?
No, this specific valve is charged and calibrated for R22 and R407C. Using it with R410A will lead to improper superheat and potential system failure.
What is the benefit of the external equalizer on the 055931?
The external equalizer allows the valve to sense the actual pressure at the evaporator outlet, compensating for pressure drops within the coil to ensure accurate refrigerant flow.
Can this valve be mounted in any orientation?
While the straight body sweat valve is versatile, it is best practice to mount it in a position that prevents oil from trapping in the head, typically with the power element upright.
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.
Original: $55.46
-65%$55.46
$19.41Emerson Alco 055931 Expansion Valve
The Emerson Alco 055931, model HFES 2.5 HC, is a high-performance externally equalized thermal expansion valve designed for precision refrigerant flow control in medium temperature applications. Engineered for both R22 and R407C systems, this valve features a 2.5-ton nominal capacity and a straight body configuration with 3/8" x 1/2" ODF sweat connections. The heavy-duty stainless steel power element resists corrosion and prevents capillary tube fatigue, while the 5-foot capillary length provides installation flexibility in tight evaporator housings. As a balanced port TXV, it maintains stable superheat control across varying head pressures, making it a reliable choice for commercial refrigeration and air conditioning maintenance. This unit serves as the direct replacement for 109055, ensuring seamless mechanical compatibility during field retrofits. Utilizing a HC medium temp charge, it optimizes evaporator efficiency and prevents liquid slugging, ensuring long-term compressor protection and system stability for professional contractors.
Key Benefits
- Stable Superheat Control: The balanced port design compensates for fluctuating head pressures, maintaining precise refrigerant metering.
- Direct Drop-In Replacement: Specifically engineered to replace the Alco 109055 without requiring extensive piping modifications.
- Durable Construction: Features a stainless steel diaphragm and power element for superior resistance to corrosion and vibration-induced failure.
- Dual Refrigerant Compatibility: Rated for use with both R22 and R407C, providing versatility for legacy systems and retrofits.
- External Equalization: Optimizes performance in systems with high pressure drops across the evaporator coil.
Common Questions
Is the HFES 2.5 HC compatible with R410A systems?
No, this specific valve is charged and calibrated for R22 and R407C. Using it with R410A will lead to improper superheat and potential system failure.
What is the benefit of the external equalizer on the 055931?
The external equalizer allows the valve to sense the actual pressure at the evaporator outlet, compensating for pressure drops within the coil to ensure accurate refrigerant flow.
Can this valve be mounted in any orientation?
While the straight body sweat valve is versatile, it is best practice to mount it in a position that prevents oil from trapping in the head, typically with the power element upright.
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.
Product Information
Product Information
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Description
The Emerson Alco 055931, model HFES 2.5 HC, is a high-performance externally equalized thermal expansion valve designed for precision refrigerant flow control in medium temperature applications. Engineered for both R22 and R407C systems, this valve features a 2.5-ton nominal capacity and a straight body configuration with 3/8" x 1/2" ODF sweat connections. The heavy-duty stainless steel power element resists corrosion and prevents capillary tube fatigue, while the 5-foot capillary length provides installation flexibility in tight evaporator housings. As a balanced port TXV, it maintains stable superheat control across varying head pressures, making it a reliable choice for commercial refrigeration and air conditioning maintenance. This unit serves as the direct replacement for 109055, ensuring seamless mechanical compatibility during field retrofits. Utilizing a HC medium temp charge, it optimizes evaporator efficiency and prevents liquid slugging, ensuring long-term compressor protection and system stability for professional contractors.
Key Benefits
- Stable Superheat Control: The balanced port design compensates for fluctuating head pressures, maintaining precise refrigerant metering.
- Direct Drop-In Replacement: Specifically engineered to replace the Alco 109055 without requiring extensive piping modifications.
- Durable Construction: Features a stainless steel diaphragm and power element for superior resistance to corrosion and vibration-induced failure.
- Dual Refrigerant Compatibility: Rated for use with both R22 and R407C, providing versatility for legacy systems and retrofits.
- External Equalization: Optimizes performance in systems with high pressure drops across the evaporator coil.
Common Questions
Is the HFES 2.5 HC compatible with R410A systems?
No, this specific valve is charged and calibrated for R22 and R407C. Using it with R410A will lead to improper superheat and potential system failure.
What is the benefit of the external equalizer on the 055931?
The external equalizer allows the valve to sense the actual pressure at the evaporator outlet, compensating for pressure drops within the coil to ensure accurate refrigerant flow.
Can this valve be mounted in any orientation?
While the straight body sweat valve is versatile, it is best practice to mount it in a position that prevents oil from trapping in the head, typically with the power element upright.
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.












