![020B1136 - Differential pressure valve, NRD 12s, Max. Working Pressure [bar]: 49.0 Danfoss](https://haste-uae.com/wp-content/uploads/2026/02/Untitled-design-15.png)
![020B1132 - Differential pressure valve, NRD 12s, Max. Working Pressure [bar]: 49.0 Danfoss](https://haste-uae.com/wp-content/uploads/2026/02/Untitled-design-15-400x400.png)
Product details
Danfoss NRD 12s High-Pressure Differential Valve | 1/2 in ODF | 49 bar
Product Description:
The Danfoss NRD 12s (020B1136) is a specialized pressure regulator tailored for the next generation of high-pressure cooling in the UAE. This valve operates by maintaining a minimum differential pressure between the discharge line and the receiver, starting to open at 1.4 bar. Its unique 49 bar (711 psig) maximum working pressure makes it an ideal choice for transcritical or subcritical refrigeration cycles and systems using high-pressure HFCs or CO2 in Dubai. Featuring 1/2 in ODF solder connections, it ensures a permanent, hermetic seal capable of withstanding the extreme thermal stresses and vibration common in UAE industrial plants. This robust build guarantees operational stability and helps prevent system efficiency loss during fluctuating ambient conditions in the Middle East.
Key Features & Benefits:
- Extended Pressure Range: 49-bar rating provides an extra safety margin and compatibility with modern high-pressure refrigerants in the UAE.
- Precise Receiver Regulation: Ensures reliable liquid flow to expansion valves, even when UAE night temperatures drop.
- Hermetic Solder Design: 1/2 inch ODF connections eliminate leak paths, crucial for high-pressure gas applications in Dubai.
- Corrosion Resistance: Durable construction designed for long-term service in the humid and saline UAE coastal environment.
- System Versatility: Works seamlessly alongside Danfoss KVR regulators to provide complete condensing pressure control in UAE facilities.
Technical Specifications :
| Specifications | Value |
| Manufacturer | Danfoss |
| Product Model | NRD 12s (High Pressure) |
| Code Number | 020B1136 |
| Connection Size | 1/2 in (ODF Solder) |
| Max. Working Pressure | 49.0 bar (711 psig) |
| Opening Differential | 1.4 bar (Starts) / 3.0 bar (Fully Open) |
| Refrigerants | R744 (CO2), R410A, R32, R134a, etc. |
| Temperature Range | -40°C to +105°C |
FAQs:
- Q: Why use the 49-bar version (020B1136) instead of the standard 46-bar in the UAE?
- A: This model is specifically required for higher-pressure applications like CO2 (R744) or specialized high-lift systems found in modern UAE industrial plants.
- Q: Is this valve compatible with the high temperatures in Dubai?
- A: Yes, it is rated for media temperatures up to +105°C, making it perfect for discharge line installation in the UAE.
- Q: Does it require manual adjustment in UAE systems?
- A: No, the NRD is a fixed-differential valve, providing consistent and maintenance-free operation for UAE facility managers.
