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Product details
Danfoss NRV 12s Check Valve | 1/2 in (12 mm) ODF Solder | 49 bar
Product Description:
The Danfoss NRV 12s (020B1012) is a critical component for maintaining unidirectional flow in high-performance cooling systems across the UAE. By preventing the back-condensation of refrigerant during system off-cycles, it protects the compressor from liquid slugging—a vital function during the extreme temperature swings of the Dubai summer. This model features 1/2 in (12 mm) ODF solder connections, providing a permanent, leak-proof brazed joint that withstands the high vibrations of UAE commercial installations. With its robust 49 bar (711 psig) maximum working pressure, it is fully compatible with modern high-pressure refrigerants like R410A and R32, offering low pressure drop and long-term reliability in Middle Eastern environments.
Key Features & Benefits:
- Reliable Flow Control: Effectively blocks refrigerant back-flow, ensuring optimal evaporator performance in UAE units.
- Superior 49-bar Capacity: Offers an extra safety margin for high-pressure refrigeration projects in Dubai and Abu Dhabi.
- Hermetic Solder Design: 1/2 inch ODF connectors ensure a secure, brazed seal that is ideal for the demanding UAE environment.
- Wide Thermal Resilience: Rated for temperatures from -50°C to +140°C, making it suitable for liquid, suction, and hot gas lines in the UAE.
- High Flow Efficiency: Optimized internal design provides a Kv value of 2.05 $m^3/h$, minimizing energy loss in UAE cooling systems.
Technical Specifications :
| Specifications | Value |
| Manufacturer | Danfoss |
| Product Model | NRV 12s |
| Code Number | 020B1012 |
| Connection Size | 1/2 in (12 mm) ODF Solder |
| Max. Working Pressure | 49.0 bar (711 psig) |
| Opening Differential Pressure | 0.05 bar (Min. $\Delta p$) |
| Kv Value | 2.05 $m^3/h$ |
| Media Compatibility | HCFC, Non-flammable HFC refrigerants |
FAQs:
- Q: Is the NRV 12s (020B1012) suitable for high-ambient temperatures in the UAE?
- A: Absolutely. It is designed to operate reliably in media temperatures up to +140°C, making it perfect for the UAE‘s demanding conditions.
- Q: Why choose the solder version (020B1012) over flare in Dubai?
- A: Solder connections provide a permanent, hermetic seal that eliminates potential leak paths caused by thermal expansion in the UAE summer.
- Q: Can this valve be used with R410A in UAE projects?
- A: Yes, its 49-bar rating is specifically intended for use with high-pressure refrigerants common in modern UAE HVAC systems.
