Trane VAL9575 TXV

The Trane VAL9575 is a high-capacity 8-ton thermostatic expansion valve engineered specifically for R-410A refrigerant systems. This externally equalized TXV features a 1/2-inch ODF inlet and a 5/8-inch ODF outlet, ensuring a precise fit within high-tonnage light commercial air handlers and heat pumps. With its 60-inch capillary tube, this valve provides the necessary length for flexible sensing bulb placement, crucial for maintaining optimal liquid flow and stable superheat across varying evaporator loads. Designed to prevent liquid slugging and maximize heat transfer efficiency, the VAL9575 utilizes a balanced port design to compensate for pressure fluctuations. This genuine Trane OEM replacement expansion valve is the standard for contractors performing refrigerant flow control repairs, ensuring the system operates within manufacturer specifications while protecting the compressor from premature wear during low-load conditions.

Technical Specifications & Benefits

• System Capacity: 8-ton rating optimized for R-410A high-pressure environments.
• Port Configuration: 1/2" x 5/8" ODF solder connections for leak-proof brazing.
• Sensing Lead: Heavy-duty 60" capillary length for versatile mounting.
• OEM Reliability: Direct replacement for Trane and American Standard 8-ton evaporator coils.
• Load Management: Maintains consistent superheat to improve HVAC system efficiency.

Common Installation Questions

What is the primary cause of VAL9575 failure in 8-ton systems?
Mechanical failure is usually attributed to moisture or debris in the refrigerant circuit. Always replace the liquid line filter drier when installing a new Trane TXV to ensure the internal orifice remains clear.

Does this valve support heat pump applications?
Yes, the Trane VAL9575 is designed to handle the bidirectional flow requirements and pressure differentials found in heavy-duty heat pump systems using R-410A refrigerant.

Where should the sensing bulb be mounted?
For an 8-ton line, the bulb should be securely fastened to the suction line in the 4 or 8 o'clock position, upstream of the external equalizer tap, and properly insulated to ensure accurate temperature sensing.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.