Bohn 29311817 Thermostatic Expansion Valve 3/8x1/2 Od

Product Description

The BOHN 29311817 is a thermostatic expansion valve (TXV) designed for use in commercial refrigeration systems. A TXV meters refrigerant flow into the evaporator coil, maintaining superheat at the evaporator outlet and protecting the compressor from liquid slugging. This valve features inlet and outlet connections of 3/8 inch and 1/2 inch OD, respectively, making it suited for medium-capacity commercial refrigeration circuits. Installation is performed by licensed refrigeration technicians or HVAC-R mechanics as part of refrigerant-side service work.

This TXV is sourced as a Heatcraft replacement part, intended for commercial refrigeration applications where precise refrigerant metering is required. Typical installations include walk-in coolers, reach-in cases, and other commercial evaporator coil assemblies used in foodservice and cold-storage environments. It fits refrigeration circuits where a 3/8 inch OD inlet and 1/2 inch OD outlet valve is specified by the equipment design.

Key Features

• Thermostatic expansion valve design provides automatic superheat control at the evaporator outlet
• 3/8 inch OD inlet connection suits medium-capacity commercial refrigeration piping
• 1/2 inch OD outlet connection for direct evaporator coil feed
• OEM Heatcraft replacement part for commercial refrigeration equipment
• Protects compressor by preventing liquid refrigerant carryover

Compatibility

Designed as an OEM-style replacement TXV for Heatcraft commercial refrigeration equipment requiring a 3/8 inch x 1/2 inch OD thermostatic expansion valve.

Installation Notes

Installation must be performed by an EPA 608-certified technician, as this component is part of a sealed refrigerant circuit. Recover all refrigerant and isolate the system before removing the existing valve. Ensure proper orientation of the TXV sensing bulb on the suction line per standard refrigeration practice, and leak-test all connections after installation before recharging the system.

Technical Specifications

• Inlet Connection: 3/8 inch OD
• Outlet Connection: 1/2 inch OD
• Valve Type: Thermostatic Expansion Valve (TXV)

Standard Information

• Brand: BOHN
• Manufacturer Part Number: 29311817