Description
The Trane VAL8599 is an OEM thermostatic expansion valve (TXV) engineered specifically for R410A refrigerant systems rated at 5 tons of cooling capacity. Featuring a 5/16″ inlet connection and a 1/2″ outlet connection, this valve delivers precise refrigerant metering to maintain optimal superheat levels and maximize system efficiency across a wide range of operating conditions.
Designed as a direct Trane replacement part, the VAL8599 ensures seamless compatibility with applicable Trane split-system and packaged air conditioning equipment. Its robust construction and factory-calibrated sensing bulb provide reliable, consistent performance season after season — making it the preferred choice for HVAC professionals who demand OEM accuracy without compromise.
Key Features
- OEM Trane replacement thermostatic expansion valve (TXV)
- Designed for R410A refrigerant systems
- 5-ton (60,000 BTU/hr) rated cooling capacity
- 5/16″ inlet x 1/2″ outlet connection sizes
- Factory-calibrated sensing bulb for precise superheat control
- Optimizes refrigerant flow for peak system efficiency
- Direct drop-in replacement for compatible Trane equipment
Specifications
- Brand: Trane
- Part Number: VAL8599
- Refrigerant Type: R410A
- Capacity: 5 Ton
- Inlet Connection: 5/16″
- Outlet Connection: 1/2″
- Valve Type: Thermostatic Expansion Valve (TXV)
Application
The VAL8599 is intended for use in Trane residential and light commercial split-system air conditioners and heat pumps utilizing R410A refrigerant. Always consult equipment documentation or a qualified HVAC technician to confirm compatibility before installation.







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