Product details
Danfoss ORF Orifice Assembly | Multi-Refrigerant | 067B2773
Product Description: The 067B2773 (Orifice No. 03) is a vital component for HVAC/R professionals in the UAE who require precise capacity matching for their expansion valves. In the region’s diverse climate—from the high humidity of Dubai’s coast to the dry heat of Al Ain—this orifice offers the flexibility to handle multiple refrigerants. It supports legacy gases like R22 and R404A, as well as modern, lower-GWP alternatives such as R448A, R449A, and R513A. The assembly includes a robust filter screen that protects the valve’s internal seat from system contaminants, ensuring a longer service life and consistent performance in demanding Middle Eastern environments.
Key Features & Benefits:
- Extensive Refrigerant Support: Compatible with over 10 different refrigerants, making it an ideal stock item for UAE contractors servicing various types of cooling systems.
- Effective System Protection: The integrated filter screen captures debris and copper shavings, preventing valve blockage and ensuring smooth operation.
- Interchangeable Flexibility: Allows for quick and easy capacity adjustments on-site without the need to de-braze or replace the entire valve body.
- Precision Metering: Engineered to provide accurate refrigerant flow, optimizing evaporator efficiency and reducing energy costs for UAE businesses.
- Robust Material Quality: Built to endure the high-frequency cycling typical of commercial refrigeration units in the Middle East.
Technical Specifications:
| Specifications | Value |
| Manufacturer | Danfoss |
| Orifice Number | 03 |
| Code Number | 067B2773 |
| Compatible Valves | TUA, TUB, TQA |
| Refrigerants | R404A, R134a, R22, R407C, R448A, R449A, R513A, etc. |
| Application | Commercial Refrigeration / Cooling |
| Included Components | Orifice and Filter Screen |
FAQs:
- Q: Can I use the 067B2773 for an R134a system in Dubai?
- A: Yes, it is fully compatible with R134a, commonly used in small commercial chillers and transport refrigeration across the UAE.
- Q: Is this orifice compatible with the TUA valve body?
- A: Absolutely. It is designed specifically for the TUA/TUB/TQA series, allowing for a universal fit across these Danfoss platforms.
- Q: How often should the orifice filter be checked in the UAE?
- A: In the UAE’s high-duty environment, it is recommended to inspect the filter during annual maintenance or if a sudden drop in cooling capacity is noticed.






