Trane VAL8611 thermostatic expansion valve (TXV) is an OEM metering device designed for 3.5-ton R-22 air conditioning and heat pump systems with 5/8" connections, helping restore factory performance and reliability. This TXV controls the flow of R-22 into the evaporator, ensuring proper refrigerant flow for stable operation, better efficiency, and improved temperature control. Designed to respond to changing load conditions, the VAL8611 reduces compressor stress, minimizes short cycling, extends equipment life, and enhances comfort.
 
Ideal for residential and light commercial Trane systems requiring a 3.5-ton capacity and 5/8" connection, this OEM TXV is commonly used in repairs or upgrades to fix poor cooling and unstable pressures. Using an original Trane valve helps ensure correct fit, proper refrigerant metering, and dependable long-term operation in demanding cooling applications that still utilize R-22 refrigerant. Compatible with the following Trane models: