Description
The Trane VAL8799 is a factory-engineered Thermostatic Expansion Valve (TXV) designed for 5-ton R-410A refrigeration and air conditioning systems. Engineered to Trane’s exacting standards, this TXV delivers precise refrigerant metering to maintain optimal evaporator performance, protect the compressor from liquid slugging, and maximize system efficiency across a wide range of operating conditions.
Using a genuine OEM replacement valve ensures compatibility with Trane equipment and preserves the performance characteristics the system was designed to deliver — critical for maintaining manufacturer warranties and achieving rated SEER efficiency.
Key Features
- OEM Trane replacement thermostatic expansion valve
- Rated for 5-ton system capacity
- Compatible with R-410A refrigerant
- 3/8″ inlet x 1/2″ outlet connection sizes
- Provides precise refrigerant metering for consistent superheat control
- Protects compressor from liquid floodback
- Maintains optimal evaporator efficiency across varying load conditions
- Direct OEM fit for compatible Trane air conditioning and heat pump systems
Application
- Designed for use in Trane residential and light commercial split systems
- Suitable for R-410A refrigerant circuits
- Ideal for service replacement of worn or failed TXV components
Why Use a Genuine Trane TXV?
Aftermarket expansion valves may not match the precise flow characteristics calibrated for Trane equipment. The VAL8799 is built to OEM specifications, ensuring proper superheat settings, reliable bulb response, and long-term durability in demanding HVAC environments. Choosing the correct OEM part reduces callbacks, protects equipment, and keeps systems running at peak efficiency.
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