Trane VAL8990 Thermostatic Expansion Valve Ton - 3 R410A

The Trane VAL8990 is a thermostatic expansion valve (TXV) designed for 3-ton air conditioning and heat pump systems using R410A refrigerant. This precision metering device regulates refrigerant flow into the evaporator coil, maintaining optimal system efficiency and performance across varying load conditions.

Key Features:

• 3/8-inch sweat inlet connection for seamless integration with refrigerant lines
• 1/2-inch sweat outlet connection for proper evaporator coil attachment
• Rated for 3-ton cooling capacity systems
• Specifically calibrated for R410A refrigerant applications
• Ensures proper superheat control for maximum system efficiency
• Prevents liquid refrigerant from returning to the compressor

This TXV is an essential component for maintaining proper refrigerant metering in residential and light commercial HVAC systems. The sweat connections allow for reliable brazed joints that meet industry standards for refrigeration systems. Proper installation by a licensed HVAC technician is required for optimal performance and warranty compliance.