Danfoss 067N8311 TXV

The Danfoss 067N8311 TGHE 40 is a high-capacity balanced port thermostatic expansion valve engineered for precision refrigerant flow control in high-pressure R410A systems. Designed for demanding HVAC and process cooling applications, this TXV features a 7/8" x 7/8" ODF solder connection and a robust stainless steel power element. The biflow design allows for consistent superheat regulation in both cooling and heating modes, making it an ideal choice for heat pump systems. Its laser-welded power element ensures long-term integrity against pressure spikes, while the integrated check valve functionality (model dependent) simplifies piping layouts. Technicians favor the TGHE series for its linear response and high-resolution adjustment, preventing liquid slugging and evaporator starve. This Danfoss 067N8311 is built to maintain system stability across a wide range of evaporating temperatures, ensuring maximum evaporator efficiency even during fluctuating load conditions.

• Optimized for R410A: Engineered specifically to handle the high-pressure characteristics of R410A refrigerant systems.
• Balanced Port Design: Minimizes the influence of varying condensing pressures on superheat, ensuring stability in variable speed systems.
• Hard-Solder ODF Connections: 7/8 inch copper connections provide a reliable, leak-free interface in high-vibration commercial environments.
• Stainless Steel Power Element: Enhances corrosion resistance and diaphragm longevity compared to standard copper elements.
• Biflow Capability: Provides accurate expansion control in both directions, perfect for reversible cycle applications.

What is the nominal capacity of the TGHE 40 067N8311?
The TGHE 40 series is rated for high-capacity applications, typically around 40 tons depending on the specific pressure drop and liquid temperature across the valve.

Does this valve require an external equalizer?
Yes, the Danfoss 067N8311 utilizes an external equalization line (typically 1/4" ODF) to accurately sense evaporator outlet pressure and maintain stable superheat.

Is this TXV compatible with POE oil?
Yes, the materials used in the TGHE series are fully compatible with Polyolester (POE) lubricants required for R410A systems.

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.