Trane VAL20518 Thermostatic Expansion Valve TXV - R-22 3-Ton

The Trane VAL20518 is a genuine OEM thermostatic expansion valve (TXV) designed for Trane air conditioning and heat pump systems operating on R-22 refrigerant. Rated for 3-ton capacity, this valve precisely meters refrigerant flow into the evaporator coil to maintain optimal superheat levels and consistent system performance.

Key Features:

• Genuine Trane OEM replacement part — engineered to factory specifications
• Designed for R-22 refrigerant systems
• 3-ton (36,000 BTU) capacity rating
• Regulates refrigerant flow into the evaporator coil for accurate superheat control
• Helps prevent evaporator coil freeze-up and inefficient refrigerant metering
• Direct-fit replacement for compatible Trane HVAC systems
• Supports reliable, long-term system operation

The VAL20518 is the correct replacement TXV for restoring proper refrigerant control in compatible Trane R-22 systems. Installation should be performed by a licensed HVAC technician familiar with R-22 refrigerant handling requirements.