Product
NEXT 717-100-XLT
Semi-Synthetic Ammonia Heat Pump Lubricant (Series 747)
A semi-synthetic ammonia lubricant for high-pressure ammonia heat pumps, blending hydrotreated mineral and PAO base stocks with anti-wear, seal conditioning, and antioxidant additives. Offers thermal stability at heat pump discharge temperatures, lower carryover than PAO/alkylbenzene (AB) formulations, and low-temperature fluidity down to −45 °C (−49 °F).
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Product Overview
NEXT 717-100-XLT is a semi-synthetic ammonia lubricant for high-pressure ammonia heat pumps, blending hydrotreated mineral and PAO base stocks. This formulation offers superior low-temperature fluidity, seal compatibility, and reduced lubricant carryover compared to PAO/AB and naphthenic options. Anti-wear and seal conditioning additives protect compressor and seal components under heat pump loads, while antioxidants resist thermal and oxidative degradation at high discharge temperatures.
With a pour point of −45 °C (−49 °F) and a viscosity index of 134, it maintains a lubricating film across the full operating temperature range of ammonia heat pumps, especially benefiting systems with lubricant return challenges. NEXT 717-100-XLT sits between the mineral NEXT 717-100 and full-PAO NEXT 717-100-SYN in our heat pump lubricant family.
| Product Specifications | |
|---|---|
| Base Oil Type | Semi-Synthetic (Mineral + Synthetic) |
| ISO Viscosity Grade | VG 100 |
| Refrigerant | Ammonia (R-717) |
| Application | Refrigeration · Heat Pumps |
Key Features
Low Lubricant Carryover
Reduced carryover compared to PAO/AB and naphthenic formulations minimizes consumption and system contamination.
Low-Temperature Fluidity
Maintains lubrication and facilitates lubricant return down to −45 °C (−49 °F).
Wax-Free
Clean, consistent performance without wax deposition at low temperatures
Thermal & Oxidative Stability
The antioxidant system resists degradation at heat pump discharge temperatures.
Technical Specifications
* Values shown are typical and may vary within specification limits. Viscosity values in mm²/s. Temperatures shown as °C (°F).
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NEXT 717-68-XLT
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ISO Range: 68
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