Trane VAL11159 5 Ton Thermostatic Expansion Valve 3/4" Connections

The Trane VAL11159 is a thermostatic expansion valve (TXV) designed for 5-ton HVAC systems. This precision-engineered valve regulates refrigerant flow into the evaporator coil, optimizing cooling efficiency and system performance while protecting the compressor from damage.

Key Features:

• 5-ton capacity rating for residential and light commercial applications
• 3/4" connection size for both inlet and outlet
• Regulates refrigerant flow based on temperature and pressure sensing
• Maintains optimal superheat levels for maximum system efficiency
• Includes sensing bulb and capillary tube assembly
• OEM Trane quality for reliable, long-lasting performance

The thermostatic expansion valve plays a critical role in the refrigeration cycle by precisely metering liquid refrigerant into the evaporator coil. The sensing bulb monitors refrigerant temperature at the evaporator outlet and automatically adjusts flow rates to suit changing system conditions. This ensures efficient heat transfer, prevents compressor flooding, and helps the system achieve peak performance. Professional installation by a qualified HVAC technician is required.