Lennox 59W21 Thermal Expansion Valve 3/8" x 1/2" ODF 8-Ton 30" Capillary

The Lennox 59W21 is a thermal expansion valve (TXV) designed for commercial and industrial HVAC systems requiring precise refrigerant flow control. This valve regulates the flow of R-410A refrigerant into the evaporator coil, maintaining proper superheat levels to optimize system efficiency and cooling performance.

Key Specifications:

• Connection Size: 3/8" x 1/2" ODF (Outside Diameter Flare)
• Cooling Capacity: 8 tons
• Capillary Tube Length: 30 inches
• Refrigerant Type: R-410A
• Construction: Durable brass body

Features and Benefits:

• Precise refrigerant metering ensures efficient heat transfer and system performance
• Maintains optimal superheat levels in the evaporator coil
• Brass construction provides excellent corrosion resistance and longevity
• 30-inch capillary tube offers flexible installation options for remote bulb placement
• Compatible with multiple Lennox commercial HVAC systems

This OEM Lennox replacement part ensures reliable operation and is engineered to meet strict quality standards for demanding commercial applications. The TXV automatically adjusts refrigerant flow based on load conditions, preventing liquid refrigerant from entering the compressor while maximizing system efficiency.