Industrial Refrigeration
Industrial Refrigeration
Industrial refrigeration systems are essential for food processing, cold storage, industrial cooling, freezing, and process temperature control. In these applications, compressor reliability and consistent refrigeration performance are critical. These systems use various refrigerants—ammonia (R-717), carbon dioxide (R-744), propane (R-290), isobutane (R-600a), and HFC and HFO refrigerants—each with distinct operating characteristics, compressor requirements, and lubrication demands.
NEXT Lubricants supports industrial refrigeration across all major refrigerant types with compressor lubricants selected based on refrigerant chemistry, compressor design, and the installation’s operating conditions.
How NEXT Selects a Refrigeration Compressor Lubricant
In a refrigeration system, the lubricant and the refrigerant share the circuit. Refrigerant dissolves into the lubricant and reduces its viscosity — most at the warm, high-pressure side — while lubricant carried out with the discharge gas must return from the cold side. Two properties decide the selection: the viscosity the lubricant holds at the working points with refrigerant dissolved in it, and its miscibility with the refrigerant at evaporator temperature, which governs lubricant return.
The chemistry follows the refrigerant. Ammonia systems run hydrotreated mineral and polyalphaolefin (PAO) lubricants in flooded designs and ammonia-miscible polyalkylene glycol (PAG) in direct expansion; CO₂ systems run polyol ester (POE) or PAG; hydrocarbon refrigerants run PAO and the PAG family, positioned by refrigerant weight; HFC and HFO systems run POE. NEXT selects the product and grade from the refrigerant, the compressor design, and the actual evaporating and condensing conditions — with the reasoning shown.
Applications
Industrial Refrigeration Applications
NEXT Lubricants supports the main industrial refrigeration application segments, each with its own refrigerant chemistry, compressor technology, and lubrication demands.
Ammonia Refrigeration
Lubricants for screw and reciprocating compressors using ammonia (R717) in cold storage, food processing, freezing and industrial process cooling.
Industrial Heat Pumps
Lubricants for industrial heat pump compressors using ammonia, CO₂, hydrocarbons, HFCs and HFOs under elevated temperatures and pressures.
CO₂ Refrigeration
Lubricants for transcritical, subcritical and cascade CO₂ compressors used in cold storage, food processing, commercial refrigeration and industrial cooling.
HFC & HFO Refrigeration
Lubricants for compressors using HFC, HFO and blended refrigerants across industrial refrigeration, commercial cooling and retrofit applications.
Hydrocarbon Refrigeration
Lubricants for compressors using propane, butane and other hydrocarbon refrigerants in industrial refrigeration, process cooling and LNG refrigeration cycles.
EXPERTISE & CAPABILITY
NEXT Lubricants Experience in Refrigeration Systems
NEXT Lubricants supports industrial refrigeration across ammonia (R-717), CO₂ (R-744), hydrocarbon, and HFC/HFO refrigerant systems, working with contractors, OEMs, service partners, and end users across cold storage, food processing, industrial cooling, and heat pump applications.
- Lubricant selection based on refrigerant chemistry, compressor design, and the installation's operating conditions
- Miscibility and dilution assessment at actual evaporating and condensing temperatures
- Changeover planning for conversions between lubricant chemistries in existing systems
- Cross-reference capability and offering OEM-approved refrigeration lubricants
- Technical documentation supporting product qualification, new installations, and system conversions
Recommendation
Need Help Selecting a Refrigeration Compressor Lubricant?
NEXT Lubricants provides technical lubricant recommendations for compressor applications across multiple industries.