Danfoss 068U2207 Valve

The Danfoss 068U2207 is a high-performance TUAE thermostatic expansion valve designed for precision superheat control in commercial refrigeration and air conditioning systems. This externally equalized valve features a 3/8" x 1/2" flare connection configuration and is engineered for use with R22, R407C, and other compatible refrigerants. The stainless steel power element and capillary tube provide superior durability and resistance to corrosion, ensuring stable operation in demanding environments. By utilizing a balanced port design, the 068U2207 compensates for changes in condensing pressure, preventing "hunting" and maintaining consistent evaporator feeding. The adjustable superheat setting allows technicians to fine-tune system performance to specific load requirements. This Danfoss TUAE valve kit includes the valve body and integrated element, offering a compact footprint for tight installations where reliable liquid injection is critical for compressor protection and heat exchange efficiency.

• Laser-Welded Stainless Steel Element: Provides exceptional diaphragm strength and longevity for consistent pressure response.
• Balanced Port Construction: Minimizes the impact of varying head pressures on superheat, ensuring stability across wide operating ranges.
• Bi-Flow Capability: Versatile design allows for application in heat pump systems or reversible cycles.
• Exchangeable Orifice Assembly: Simplifies maintenance and allows for capacity adjustments without removing the entire valve body.

What is the primary function of the external equalization on the Danfoss 068U2207?
The external equalizer compensates for the pressure drop across the evaporator, ensuring the valve maintains the correct superheat based on the pressure at the evaporator outlet rather than the inlet.

Can this valve be used with R410A systems?
No, the 068U2207 is specifically calibrated for R22 and R407C pressure-temperature curves. Using it with R410A will result in improper superheat control and potential system damage.

Is the bulb mounting orientation critical for this TUAE model?
Yes, for suction lines larger than 7/8 inch, the bulb should be mounted at the 4 or 8 o'clock position to avoid sensing liquid or oil at the bottom of the pipe, ensuring accurate thermodynamic feedback.

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.