Trane VAL4471 TXV

The Trane VAL4471 is a high-performance 2.5 ton thermostatic expansion valve engineered for precision refrigerant metering in R-22 HVAC systems. Designed for professional installation in residential and light commercial units, this TXV valve features a robust 3/8" inlet and 1/2" outlet configuration capable of maintaining optimal superheat across various load conditions. With a maximum pressure rating of 500 PSI, this valve is a critical HVAC replacement part for technicians looking to restore factory-standard performance and prevent compressor floodback or overheating.

As an OEM Trane expansion valve, the VAL4471 ensures seamless compatibility with legacy 2.5 ton air conditioning equipment and heat pump systems. The integrated sensing bulb and balanced port design react quickly to evaporator temperature changes, providing the fast response times required to protect the refrigeration cycle. Whether you are performing a routine service or a complete repair, using this specific Trane VAL4471 TXV helps stabilize liquid flow to the evaporator coil, maximizing the efficiency of older R-22 infrastructure while minimizing the risk of system hunting or freeze-ups.

• Precise Refrigerant Control: Specifically calibrated for R-22 refrigerant systems to manage mass flow and maintain accurate superheat levels.
• Enhanced Component Protection: Regulates liquid flow to prevent liquid slugging, significantly extending the operational life of the system compressor.
• Durable Construction: Built to withstand commercial-grade demands with a 500# pressure rating and high-quality brass body.
• Direct Fit Compatibility: Standard 3/8" x 1/2" connections ensure a straightforward HVAC installation process for technicians.

• Can this be used with systems other than R-22? No, several internal components and the sensing bulb charge are specifically designed for the pressure-temperature characteristics of R-22.
• Does this require a hard start kit? For systems using reciprocating compressors, a hard start kit is highly recommended to assist the compressor during startup against the pressure differential maintained by the TXV.
• What causes this valve to fail or "hunt"? Common issues include moisture contamination in the lines, an improperly located sensing bulb, or debris clogging the internal screen. Ensure the bulb is mounted at the 4 or 8 o’clock position on the suction line for accurate sensing.

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.