Montague 73355-5 Thermal Expansion Valve R449A

Product Description

The MONTAGUE 73355-5 is a thermal expansion valve (TXV) designed for use with R449A refrigerant in commercial refrigeration systems. A TXV meters refrigerant flow into the evaporator coil, regulating superheat to maintain system efficiency and protect the compressor from liquid slugging. This valve is a Montague OEM part, sourced for use in commercial appliance applications where precise refrigerant metering is critical. Licensed refrigeration technicians and commercial HVAC-R service professionals are the primary installers of this component.

This TXV is intended for commercial refrigeration equipment operating on R449A, a low-global-warming-potential HFC blend commonly used as a replacement refrigerant in medium- and low-temperature applications. It is a Montague parts and accessories item, suited for service and repair of Montague commercial appliance systems that require R449A-compatible refrigerant control components.

Key Features

• Compatible with R449A refrigerant, a common HFC blend used in commercial refrigeration
• OEM Montague replacement part for commercial appliance systems
• Meters refrigerant flow to the evaporator for controlled superheat management
• Designed for professional installation in commercial refrigeration service applications

Compatibility

Designed as an OEM-style replacement for Montague commercial appliance refrigeration systems operating on R449A refrigerant. Refer to the equipment service manual to confirm fitment before installation.

Installation Notes

Installation of a TXV must be performed by a certified EPA Section 608 technician authorized to handle HFC refrigerants. Recover all refrigerant and isolate the system before removing the existing valve. Follow the equipment manufacturer service documentation for proper valve orientation, bulb placement, and torque procedures. Leak-test all connections after reassembly before recharging the system.

Technical Specifications

• Refrigerant Type: R449A
• Component Type: Thermal Expansion Valve (TXV)

Standard Information

• Brand: MONTAGUE
• Manufacturer Part Number: 73355-5