Product
NEXT 717-68-XLT
Synthetic Blend Ammonia Refrigeration Lubricant (Series 747)
NEXT 717-68-XLT is a synthetic blend ammonia refrigeration lubricant formulated with hydrotreated mineral and polyalphaolefin (PAO) base stocks, along with anti-wear and seal conditioning additives. It offers lower carryover rates than PAO/alkylbenzene (AB) and naphthenic formulations, maintains fluidity down to −51 °C (−60 °F), and provides extended lubricant life for systems with lubricant return challenges.
Product Overview
NEXT 717-68-XLT is a synthetic blend ammonia refrigeration lubricant combining hydrotreated mineral and PAO base stocks. This blend provides low-temperature fluidity, seal compatibility, and reduced lubricant carryover compared to PAO/AB and naphthenic-based formulations. Its anti-wear and seal conditioning additive system protects compressor and seal components over extended service intervals.
This blend is particularly effective in ammonia refrigeration systems facing lubricant return challenges, common in large industrial installations with long piping runs and multiple evaporator stages. A pour point of −51 °C (−60 °F) and a viscosity index of 128 ensure reliable cold-start performance and consistent lubrication across the entire operating temperature range.
| Product Specifications | |
|---|---|
| Base Oil Type | Synthetic Blend (Mineral + Synthetic) |
| ISO Viscosity Grade | VG 68 |
| Refrigerant | Ammonia (R-717) |
| Application | Refrigeration |
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 at evaporator temperatures as low as −51 °C (−60 °F)
Wax-Free
Prevents wax deposition at low evaporator temperatures.
Oxidation Resistance
Resists lubricant degradation and deposit formation.
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-SYN
Synthetic PAO Ammonia Refrigeration Lubricant
Base Oil: PAO
ISO Range: 46 & 68
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