Copeland 058451 5 Ton Low Temp Externally Equalized TXV, 5/8″ x 7/8″ Sweat

Description

Overview

The Copeland 058451 is a heavy-duty Thermal Expansion Valve (TXV) engineered for demanding low-temperature refrigeration applications. Designed for 5-ton capacity systems, this externally equalized valve delivers precise refrigerant metering and superior superheat control across a wide range of modern and legacy refrigerants. Its robust construction and field-proven design make it a reliable choice for commercial refrigeration installations.

Key Features

• 5-ton capacity rating optimized for low-temperature refrigeration systems
• Externally equalized design for accurate superheat control in systems with significant evaporator pressure drop
• 5-foot capillary tube for flexible remote bulb placement
• 5/8″ ODF sweat inlet connection
• 7/8″ ODF sweat outlet connection
• Compatible with multiple refrigerants: R507, R502, R404A, R448A, and R449A
• Part Number / Model: HFES 5 SZ 5FT 5/8×7/8 ODF S/T

Refrigerant Compatibility

• R507 – Long-term HFC blend for low-temperature applications
• R502 – Legacy HCFC refrigerant (retrofit/replacement use)
• R404A – Common HFC blend for commercial refrigeration
• R448A – Low-GWP HFC/HFO blend, R404A alternative
• R449A – Low-GWP HFC/HFO blend, R404A/R507 alternative

Connections

• Inlet: 5/8″ ODF Sweat (solder)
• Outlet: 7/8″ ODF Sweat (solder)
• Equalizer: External
• Capillary Tube Length: 5 feet

Application

Ideal for use in commercial walk-in freezers, display cases, and other low-temperature refrigeration systems where precise superheat management and broad refrigerant compatibility are required. The external equalizer port ensures accurate valve operation even when evaporator pressure drop is a factor, making this TXV well-suited for multi-circuit or distributed evaporator configurations.