Description
The Trane VAL8703 is an OEM expansion valve engineered to deliver precise refrigerant metering in 4-ton HVAC systems. Designed as a direct Trane replacement component, this valve ensures optimal system efficiency by accurately controlling refrigerant flow into the evaporator coil — maintaining proper superheat levels and protecting the compressor from liquid slugging.
Key Features
- Rated for 4-ton system capacity
- 3/8″ inlet connection for reliable high-side refrigerant feed
- 1/2″ outlet connection for proper low-side distribution
- OEM Trane replacement part for assured fit and compatibility
- Engineered for precise refrigerant metering and superheat control
- Helps protect compressor from liquid refrigerant slugging
- Supports system efficiency and consistent cooling performance
Applications
- Trane residential and light commercial split systems
- 4-ton cooling and heat pump applications
- Direct OEM replacement in compatible Trane equipment
Product Specifications
- SKU: VAL8703
- Brand: Trane
- Valve Type: Expansion Valve (EXV)
- System Capacity: 4 Ton
- Inlet Connection: 3/8″
- Outlet Connection: 1/2″







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