Danfoss 068U1039 Orifice Assembly

The Danfoss 068U1039 Orifice Assembly is a high-performance TXV orifice size 09 designed specifically for the Danfoss TUA and TUAE series of thermostatic expansion valves. As an essential component for precise refrigerant flow control, this ORF type orifice supports a wide range of refrigerants, including R410A, R404A, R134a, R32, and R452A, as well as modern HFO blends. For technicians managing variable loads, the 068U1039 ensures stable superheat and reliable metering across its rated capacity, reaching up to 7.5 TR (26 kW) for R410A. The straightway flow design and stainless steel construction provide long-term durability in commercial refrigeration and air conditioning applications. Whether you are performing a Danfoss TUA orifice replacement or optimizing a new installation, this OEM Danfoss 068U1039 multi-pack ensures you have the exact tolerance required for peak system efficiency.

Key Benefits for HVACR Contractors

• Universal Compatibility: Engineered for use with Danfoss TUA and TUAE valves across a massive range of A1, A2L, and HFO refrigerants.
• High Capacity Range: Size 09 orifice provides substantial lift, supporting up to 4.8 TR for R407C and 4.5 TR for R22 systems.
• Precision Metering: The straightway flow design ensures consistent refrigerant distribution and accurate superheat control in demanding environments.
• Bulk Service Ready: Supplied in a multi-pack of 9 pieces, reducing per-unit cost and ensuring inventory readiness for large-scale maintenance.
• Extreme Temperature Resilience: Rated for a medium to low-temperature range from -40°F to 50°F, making it suitable for both cooling and freezing applications.

Common Questions

What is the difference between Danfoss TUA and TUAE valves regarding this orifice?
The Danfoss 068U1039 fits both series. The TUA features internal equalization, while the TUAE utilizes external equalization; however, the orifice assembly itself is interchangeable between both valve bodies.

Can I use this orifice with R32 or other A2L refrigerants?
Yes, this 068U1039 orifice is technically validated for use with R32, R454B, and R455A, making it future-proof for systems transitioning to low-GWP refrigerants.

Is the screen/filter included with the 068U1039 orifice?
This orifice assembly is the metering component designed to be inserted into the valve body. It is critical to ensure the valve's inlet filter is clean to prevent debris from fouling the precision-machined orifice opening.

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.