Danfoss 067N9406 Expansion Valve

The Danfoss 067N9406 (Type TGEX 10) is a high-performance thermal expansion valve engineered for precision refrigerant flow control in air conditioning and heat pump systems. Featuring a 7.5-ton capacity and optimized for R22/R407C, this externally equalized TXV ensures stable superheat across varying load conditions. It utilizes a straight body design with 5/8" ODF inlet and 7/8" ODF outlet connections, providing a robust solution for medium-to-large tonnage applications. This unit includes a number 8 orifice and a 60-inch capillary tube for versatile bulb placement. With a Maximum Operating Pressure (MOP 667 PSI), it protects the compressor against excessive suction pressure during start-up or defrost cycles. For contractors performing retrofits or repairs, the 067N9406 serves as the direct replacement for 068H6205, maintaining system integrity without requiring extensive piping modifications.

Key Benefits for Technicians

• Precision Flow Control: The Type TGEX 10 design provides excellent modulation, preventing liquid slugging and maintaining optimal evaporator efficiency.
• Broad Compatibility: Rated for R22 and R407C systems, making it a versatile choice for servicing older installations or R407C retrofits.
• Simplified Installation: Comes equipped with a bulb strap and long capillary tube to ensure secure thermal contact and flexible mounting.
• Reliable Protection: High MOP 667 PSI rating prevents motor overload during high-load conditions, extending the longevity of the compressor.

Common Questions

Is the Danfoss 067N9406 compatible with R22 replacements?
Yes, while designed for R22 and R407C, this valve is suitable for most R22/R407C capacity applications within the 7.5-ton range, provided the pressure-temperature characteristics align.

Does this valve replace the obsolete 068H6205 expansion valve?
Yes, the 067N9406 is the verified direct replacement for 068H6205, featuring matching connection sizes and tonnage ratings for a seamless swap.

Why use an externally equalized valve like the TGEX 10 in this system?
An externally equalized TXV is necessary for systems with significant pressure drops across the evaporator, ensuring the bulb accurately senses superheat relative to the evaporator outlet pressure.

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.