Danfoss 067N5255 Valve

The Danfoss 067N5255 is a high-performance TGEN 40 series thermostatic expansion valve designed for large-scale refrigeration and air conditioning systems. Engineered for R134a applications, this 20-ton capacity TXV ensures precise refrigerant metering across varying load conditions. It features a straight body configuration with 1 1/8" ODF solder connections and a primary balanced port design, which neutralizes the effect of fluctuating condensing pressures to maintain stable superheat. The externally equalized 1/4" connection and MOP 667 PSI rating make it a reliable choice for high-pressure environments. This assembly includes a number 30 orifice and a 60-inch capillary tube, along with a specialized bulb strap for secure mounting. For technicians retrofitting systems, this bi-flow capable valve effectively replaces legacy 067N5241 models, providing optimized liquid injection and compressor protection.

• Stable Superheat Control: The balanced port design maintains consistent performance despite liquid line pressure drops or ambient temperature swings.
• R134a & R513A Compatibility: Listed for R134a, the TGE type construction is also structurally compatible with R513A for modern refrigerant transitions.
• Robust Construction: Features a laser-welded stainless steel power element and double-diaphragm for extended service life in commercial duty cycles.
• Flexible Installation: The 60-inch capillary tube and ODF solder connections simplify integration into tight mechanical spaces.
• Bi-Flow Operation: Engineered to provide reliable refrigerant expansion in both directions, making it suitable for heat pump applications.

Is the Danfoss 067N5255 compatible with refrigerants other than R134a?
While optimized for R134a, the TGE 40 platform is often used with R513A. Always verify that the thermostatic charge and orifice sizing align with your specific system requirements before installation.

What is the benefit of the MOP 667 PSI rating on this expansion valve?
The Maximum Operating Pressure (MOP) charge protects the compressor motor by limiting the suction pressure during periods of high evaporator load or after a defrost cycle, preventing motor overload.

Does this valve come with an adjustable superheat setting?
Yes, the Danfoss 067N5255 features an adjustable spindle, allowing technicians to fine-tune the static superheat to meet specific evaporator performance targets.

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.