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Product details
Danfoss NRV 35s Check Valve | 1 3/8 in (35 mm) ODF Solder | 46 bar
Product Description:
The Danfoss NRV 35s (020-1026) is built for the most demanding mass-flow applications in the UAE. This industrial-grade check valve ensures that refrigerant flows in only one direction, effectively preventing back-condensation from warm to cold system sections—a critical function for maintaining compressor health in Dubai’s extreme operating temperatures. Featuring 1 3/8 in (35 mm) ODF solder connections, it provides a high-integrity brazed joint that withstands the significant vibrations and thermal stresses of large UAE mechanical rooms. With a robust 46 bar maximum working pressure and an impressive Kv value of 19 $m^3/h$, it offers minimal pressure drop for maximum energy efficiency in the Middle Eastern industrial sector.
Key Features & Benefits:
- Industrial Flow Power: Exceptional mass-flow capacity (Kv 19 $m^3/h$) ensures peak performance for large-scale UAE chillers.
- Hermetic Solder Integrity: 1 3/8 inch ODF ports ensure a permanent, leak-proof seal, vital for the high-refrigerant-charge systems in the UAE.
- Compressor Protection: Eliminates the risk of liquid refrigerant migration during off-cycles, common in the high-ambient UAE climate.
- Broad Temperature Range: Reliable operation from -50°C up to +140°C, making it suitable for both cold suction and hot gas lines in Dubai.
- Rugged Construction: Engineered with high-durability materials to resist the corrosive effects of humid and saline UAE air.
Technical Specifications :
| Specifications | Value |
| Manufacturer | Danfoss |
| Product Model | NRV 35s |
| Code Number | 020-1026 |
| Connection Size | 1 3/8 in (35 mm) ODF Solder |
| Max. Working Pressure | 46.0 bar (667 psig) |
| Opening Differential Pressure | 0.05 bar (Min. $\Delta p$) |
| Kv Value | 19.0 $m^3/h$ |
| Media Compatibility | HCFC, Non-flammable HFC refrigerants |
FAQs:
- Q: Is the NRV 35s (020-1026) suitable for Dubai’s district cooling plants?
- A: Yes, its high flow capacity and industrial reliability make it an ideal choice for district cooling and large commercial HVAC projects in the UAE.
- Q: Can this valve be used with high-pressure R410A in the UAE?
- A: Absolutely. Its 46-bar rating is specifically designed to handle modern high-pressure refrigerants common in UAE systems.
- Q: What is the benefit of the ODF solder connection in the UAE?
- A: A brazed ODF joint provides a permanent, hermetic connection that is superior to mechanical joints in preventing leaks in high-vibration UAE environments.
