Trane VAL8788 Thermostatic Expansion Valve 5 Ton 5/16″ x 1/2″ ODF

Description

Trane VAL8788 Thermostatic Expansion Valve — 5 Ton, 5/16″ x 1/2″ ODF

The Trane VAL8788 is a factory-engineered thermostatic expansion valve (TXV) designed for reliable refrigerant flow control in 5-ton HVAC systems. Engineered to Trane’s exacting OEM standards, this valve meters refrigerant into the evaporator coil with precision, maintaining optimal superheat levels to maximize system efficiency, protect the compressor, and extend equipment life.

Key Features

• OEM Trane replacement TXV — direct-fit for compatible 5-ton systems
• 5/16″ liquid line inlet x 1/2″ ODF suction outlet connections
• Precision refrigerant metering for consistent superheat control
• Helps prevent compressor flooding and liquid slugging
• Durable construction built to Trane OEM specifications
• Supports peak system efficiency and energy performance

Product Specifications

• SKU: VAL8788
• Brand: Trane
• Type: Thermostatic Expansion Valve (TXV)
• Capacity: 5 Ton
• Inlet Connection: 5/16″ ODF
• Outlet Connection: 1/2″ ODF

Application

The VAL8788 is intended as a direct OEM replacement for Trane residential and light commercial split systems and package units rated at 5 tons. Proper TXV replacement restores accurate refrigerant metering, improves system capacity, and reduces operating costs. Always verify compatibility with your specific Trane model before installation.

Why Choose an OEM Trane TXV?

Using a genuine Trane thermostatic expansion valve ensures your system operates exactly as designed. OEM valves are calibrated to match the refrigerant charge, coil design, and operating pressures of Trane equipment — delivering results that aftermarket alternatives may not replicate. Trust Trane parts to keep your system running at peak performance.