Danfoss NRV 28s Check Valve | 1 1/8 in (28 mm) ODF Solder | 46 bar | 020-1056

Product Description:

The Danfoss NRV 28s (020-1056) is the heavy-duty standard for large-diameter piping in the UAE’s industrial refrigeration sector. This valve is crucial for preventing the back-condensation of refrigerant into compressors and ensuring unidirectional flow in high-capacity systems during Dubai’s extreme ambient heat. Featuring 1 1/8 in (28 mm) ODF solder connections, it provides a high-integrity, permanent brazed joint that is essential for the vibration-heavy environments of large UAE mechanical rooms. With a maximum working pressure of 46 bar, it is optimized for high-volume HFC and HCFC systems, offering an impressive flow capacity (Kv value of 8.0 $m^3/h$) to maintain peak efficiency in Middle Eastern cooling infrastructure. Key Features & Benefits:

• Large-Flow Capacity: 1 1/8 inch ports ensure maximum refrigerant movement with minimal pressure drop for large UAE chillers.
• Hermetic Solder Design: ODF solder ports provide a leak-proof, permanent seal vital for the long-term reliability of UAE industrial plants.
• Stable Industrial Performance: Engineered to prevent resonance and vibration in high-velocity suction and hot gas lines across the UAE.
• Wide Thermal Range: Operates from -50°C to +140°C, making it suitable for both cold suction lines and hot discharge gas in Dubai.
• Proven Durability: Built with high-grade materials to resist the corrosive, humid air typical of coastal UAE environments.

Technical Specifications :

FAQs:

• Q: Why is the NRV 28s (020-1056) used in large UAE rooftop units?
• A: Its large 1 1/8″ size and 46-bar rating make it perfect for the high-capacity liquid and hot gas lines required to cool large buildings in the UAE.
• Q: Can this valve be used for oil return lines in Dubai?
• A: Yes, provided the flow direction is correct, it helps ensure oil moves only toward the compressor in UAE industrial setups.
• Q: Is it compatible with R410A systems in the UAE?
• A: Absolutely. Its 46-bar rating and high-grade internal components are designed for high-pressure refrigerants common in UAE HVAC.