Product details
Danfoss TGE Thermostatic Expansion Valve | R410A | 067N9289
Product Description: The 067N9289 is engineered to handle the high-pressure requirements of R410A while maintaining extreme precision. In the UAE’s intensive HVAC market, this valve is a critical component for rooftop units and large-scale chillers in Dubai and Abu Dhabi. Its balanced port design is a vital feature for the Middle Eastern climate, as it ensures stable performance regardless of the fluctuating head pressures caused by extreme ambient temperatures. The hermetic, all-laser-welded construction eliminates potential leak paths, providing a reliable and maintenance-free solution for high-vibration commercial installations.
Key Features & Benefits:
- Optimized for R410A: Specifically calibrated for the high-pressure thermophysical properties of R410A refrigerant used in modern UAE buildings.
- Balanced Port Design: Provides stable and consistent flow control even when condensing pressures spike during the peak UAE summer heat.
- Hermetic Construction: The all-welded stainless steel and copper design significantly reduces the risk of refrigerant loss, a major concern for UAE facility managers.
- High-Capacity Performance: Tailored for larger cooling loads, making it ideal for industrial-grade evaporators and large AC systems.
- Bi-metal Connections: Features copper/stainless steel bi-metal connectors for fast, safe, and reliable brazing during on-site installation in the UAE.
Technical Specifications:
| Specifications | Value |
| Manufacturer | Danfoss |
| Series | TGE |
| Code Number | 067N9289 |
| Refrigerant | R410A |
| Inlet/Outlet Connection | 7/8 in x 1-3/8 in Solder |
| Static Superheat (SS) | Adjustable |
| Max. Working Pressure | 46.0 bar (667 psig) |
| Body Material | Brass with Stainless Steel power element |
FAQs:
- Q: Is the 067N9289 suitable for high-ambient rooftop units in Dubai?
- A: Yes, the TGE series is designed to operate reliably in high ambient temperatures and is the industry standard for rooftop AC units across the UAE.
- Q: Why does this model use a balanced port?
- A: In the UAE, outdoor temperatures vary significantly; the balanced port prevents the valve from losing control of the superheat when the pressure difference across the valve changes.
- Q: Can this valve be repaired if it fails?
- A: Because it is a hermetic (welded) design, the internal parts are not serviceable. If the valve fails, the entire unit must be replaced to ensure system integrity.
