Emerson Alco 065872 Expansion Valve

The Emerson Alco 065872 is a high-performance AACE 2 ZW195 Series thermal expansion valve engineered specifically for R-410A systems. This externally equalized TXV features a 2-ton nominal capacity and a low temperature MOP 195 PSI charge, making it essential for protecting compressors from excessive suction pressure during heavy load periods or startup. Designed with a straight body configuration and 3/8" x 1/2" ODF sweat connections, it ensures a leak-resistant, hermetic seal in demanding refrigeration and air conditioning environments. The inclusion of an internal check valve facilitates reverse flow for heat pump applications, while the 5-foot capillary tube provides the necessary reach for precise sensing bulb placement. For contractors performing a TXV replacement for R410A, this valve offers the reliability required to maintain proper superheat and system efficiency under varying thermal loads.

• Maximum Operating Pressure (MOP) 195 PSI: Limits suction pressure to prevent motor overload in low-temperature applications.
• Integrated Check Valve: Simplifies installation in heat pump systems by allowing bypass flow without additional piping.
• Balanced Port Design: Compensates for changes in head pressure, ensuring stable superheat control across a wide range of operating conditions.
• Stainless Steel Power Element: Resists corrosion and prevents premature element failure in high-moisture environments.
• External Equalization: Provides accurate refrigerant metering by sensing pressure at the evaporator outlet, compensating for pressure drops.

Is the Emerson AACE 2 ZW195 compatible with heat pump systems?
Yes, this model features a built-in internal check valve, making it ideal for heat pump applications where reverse flow is required during the heating cycle.

Why is the 195 PSI MOP charge significant for R-410A systems?
The MOP 195 charge acts as a safety limit by restricting the valve from opening further once the suction pressure reaches 195 PSI, protecting the compressor from high-pressure surges during startup.

What are the specific connection sizes for the 065872 valve?
This valve uses a 3/8" ODF inlet and a 1/2" ODF outlet with sweat connections, requiring standard brazing techniques for a secure fit.

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.