Description
Copeland 057904 Medium Temperature Externally Equalized Thermal Expansion Valve (TXV)
The Copeland 057904 is a precision-engineered Thermal Expansion Valve (TXV) designed for reliable refrigerant metering in medium-temperature refrigeration applications. Sold under the model designation HFES 7 1/2 MC 5FT 5/8×7/8 ODF S/T, this valve is compatible with a broad range of modern and legacy refrigerants, making it an excellent choice for new installations and retrofit projects alike.
Refrigerant Compatibility
- R-12
- R-134a
- R-450A
- R-513A
Key Features
- Externally equalized design for accurate superheat control in systems with higher pressure drops across the evaporator
- Medium temperature charge for optimized performance in medium-temp refrigeration applications
- 5/8″ ODF sweat inlet connection
- 7/8″ ODF sweat outlet connection
- 5-foot capillary tube for flexible bulb placement and installation convenience
- Sweat (solder) connections for secure, leak-free field installation
Application
This TXV is ideally suited for commercial and light commercial refrigeration systems operating in the medium-temperature range. The externally equalized configuration ensures consistent superheat regulation even when evaporator pressure drop is a factor, protecting the compressor from liquid slugging and improving overall system efficiency. The multi-refrigerant compatibility with R-12, R-134a, R-450A, and R-513A makes this valve a versatile solution for both legacy systems and those transitioning to lower-GWP refrigerants.
Product Specifications
- Brand: Copeland
- SKU / Part Number: 057904
- Model: HFES 7 1/2 MC 5FT 5/8×7/8 ODF S/T
- Valve Type: Thermal Expansion Valve (TXV)
- Equalization: Externally Equalized
- Temperature Charge: Medium Temperature
- Inlet Connection: 5/8″ ODF Sweat
- Outlet Connection: 7/8″ ODF Sweat
- Capillary Tube Length: 5 Feet
- Compatible Refrigerants: R-12, R-134a, R-450A, R-513A
- Connection Type: Sweat (Solder)







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