Description
Trane VAL19777 Thermostatic Expansion Valve Overview
The Trane VAL19777 is an OEM thermostatic expansion valve (TXV) engineered for reliable, precise refrigerant metering in R-22 commercial cooling systems. Designed for 7.5-ton capacity applications, this valve delivers consistent superheat control to protect the compressor and maximize system efficiency.
Key Features
- Refrigerant: R-22
- System Capacity: 7.5 Ton
- Inlet Connection: 1/2″ (liquid line)
- Outlet Connection: 7/8″ (distributor/evaporator)
- Capillary Tube Length: 30″
- OEM Trane replacement part for direct-fit installation
- Precision superheat regulation for optimized evaporator performance
Product Details
The VAL19777 thermostatic expansion valve meters liquid refrigerant into the evaporator coil, maintaining the correct superheat level across a wide range of load conditions. The 30″ capillary tube provides flexibility in bulb placement, ensuring accurate sensing at the evaporator outlet. The 1/2″ liquid-line inlet and 7/8″ outlet connections are sized for 7.5-ton commercial HVAC equipment, making this valve a direct OEM replacement for compatible Trane systems.
Applications
- Trane commercial air conditioning systems rated at 7.5 tons
- R-22 refrigerant circuits requiring precise expansion control
- Evaporator coil refrigerant metering in split and packaged systems
Why Choose the Trane VAL19777?
As a genuine Trane component, the VAL19777 is built to OEM specifications for dependable long-term performance. Proper TXV selection and installation ensures optimal system efficiency, prevents compressor flooding, and extends equipment life — making this valve a critical component in any R-22 service or retrofit project.
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