Ammonia Compressor Oil
NEXT Lubricants supplies ammonia compressor oil for industrial ammonia (R717) refrigeration systems, with lubricant options for rotary screw and reciprocating compressors used in cold storage, food processing, freezing, dairy and industrial cooling applications. Selecting the right oil affects system efficiency, maintenance costs, compressor reliability and lubricant life, especially in ammonia service where low miscibility with many lubricants, low-temperature operation and high discharge temperatures place added demands on the lubricant.
For industrial operators, OEMs, distributors, service companies and technical specialists working with ammonia refrigeration systems, this page outlines ammonia compressor lubricant options, key lubrication considerations such as refrigerant miscibility, low-temperature fluidity and discharge-temperature stability, and product guidance by compressor type, temperature range and system design. It also includes cross-referencing support and technical help from NEXT Lubricants.
Knowledge
Lubrication Considerations for Ammonia Refrigeration Systems
Ammonia (R717) has specific characteristics that directly influence compressor lubricant selection. Understanding these factors helps identify the right compressor oil for your system, and it must be suitable for ammonia’s aggressive, reactive nature.
Refrigerant Miscibility
Ammonia (R717) has very low miscibility with most lubricant types. Lubricant selection must account for this to support effective oil separation and control oil circulation through the refrigerant circuit. Ammonia and many standard lubricants have low mutual solubility, so they do not fully mix and this helps preserve oil film strength.
Low Temperature Fluidity
Ammonia systems can operate at evaporating temperatures well below -40°C in two-stage configurations. Lubricant pour point and low-temperature viscosity must be matched to the low-side conditions of the specific installation, with a low pour point and low pour performance helping ensure oil return and adequate bearing protection; keeping the oil fluid in very cold conditions is essential to protect bearings and other moving parts.
Discharge Temperature Stability
At the compression ratios typical of industrial ammonia systems — particularly in single-stage operation at low evaporating temperatures — compressor discharge temperatures can be elevated, exposing the oil to high temperatures. Lubricant thermal stability and performance at these conditions influences oil service life and deposit formation risk, and synthetic lubricants provide excellent thermal stability under this stress. The oil should also resist degradation and minimize sludge, varnish, and other deposits under these conditions.
products
Ammonia Compressor Lubricants
NEXT 717-68-XLT
Synthetic Blend Ammonia Refrigeration Lubricant
Base Oil: PAO/Mineral
ISO Range: 68
NEXT 717-68-SYN
Synthetic PAO Ammonia Refrigeration Lubricant
Base Oil: PAO
ISO Range: 46 & 68
NEXT 717-100-XLT
Semi-Synthetic Ammonia Heat Pump Lubricant
Base Oil: PAO/Mineral
ISO Range: 100
Cross reference tool
Find Equivalent Ammonia Compressor Lubricants
Our technical team can help identify the right product.
Recommendation
Need Help Selecting an Ammonia Compressor Lubricant?
NEXT Lubricants provides technical lubricant recommendations to help select the required lubricant for compressors that run on ammonia (R717) across screw and reciprocating compressor types in industrial refrigeration. This guidance should be considered when matching oil to operating conditions, because using non-compatible oils can cause corrosion and premature wear or failure.
For advice on matching oil to equipment and seals, contact Technical Support
Related Applications
Explore Other Refrigeration Compressor Lubricants
NEXT Lubricants supplies compressor lubricants across all major refrigeration applications.
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Hydrocarbon Refrigeration Lubricants
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Heat Pump Lubricants
Compressor lubricants for industrial heat pumps using ammonia, CO₂ and hydrocarbon refrigerants under elevated temperature and pressure conditions.
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