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Product details
Danfoss NRV 10s Check Valve | 3/8 in (10 mm) ODF Solder | 49 bar
Product Description:
The Danfoss NRV 10s (020B1011) is a precision-engineered check valve designed for high-performance cooling systems across the UAE. By preventing the back-flow of refrigerant during off-cycles, it protects the compressor from liquid slugging and maintains system pressure, which is vital during Dubai’s intense summer heat. This model features 3/8 in (10 mm) ODF solder connections, offering a permanent, leak-proof brazed joint that excels in high-vibration environments typical of UAE commercial installations. With a robust maximum working pressure of 49 bar (711 psig), it is fully compatible with modern high-pressure refrigerants like R410A and R32, ensuring long-term reliability and low pressure drop in the Middle Eastern climate.
Key Features & Benefits:
- Reliable Backflow Prevention: Guards against refrigerant siphoning to maintain evaporator efficiency in UAE units.
- Superior 49-bar Rating: Provides an extra safety margin for high-pressure refrigeration and air conditioning projects in Dubai.
- Permanent Hermetic Seal: 3/8 inch ODF solder ports ensure a secure, brazed connection, ideal for the demanding UAE environment.
- Broad Operating Range: Rated for temperatures from -50°C to +140°C, suitable for liquid, suction, and hot gas lines in the UAE.
- Optimized Flow Design: Delivers a Kv value of 1.43 $m^3/h$, minimizing energy loss in small-to-medium UAE cooling systems.
Technical Specifications :
| Specifications | Value |
| Manufacturer | Danfoss |
| Product Model | NRV 10s |
| Code Number | 020B1011 |
| Connection Size | 3/8 in (10 mm) ODF Solder |
| Max. Working Pressure | 49.0 bar (711 psig) |
| Opening Differential Pressure | 0.05 bar (Min. $\Delta p$) |
| Kv Value | 1.43 $m^3/h$ |
| Media Compatibility | HCFC, Non-flammable HFC refrigerants |
FAQs:
- Q: Is the NRV 10s (020B1011) suitable for R410A systems in the UAE?
- A: Yes, its 49-bar maximum working pressure is specifically designed to handle high-pressure refrigerants common in the UAE.
- Q: Why is the solder connection (ODF) preferred in Dubai?
- A: Brazed solder connections provide a permanent, leak-proof seal that is more resilient than flare fittings against the thermal expansion and vibration found in UAE installations.
- Q: Can this valve be used in the discharge line of a UAE chiller?
- A: Absolutely. With a high temperature rating of +140°C, it is perfectly capable of handling hot discharge gas in the UAE.
