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FUCHS LUBRICANTS GERMANY We don't just develop lubricants. For highly complex challenges in a wide range of industries, we develop innovative lubricant solutions that enable the mobility of tomorrow. Our goal: to keep our customers' world in motion. Efficient, sustainable, reliable. Today and tomorrow. What can we move for you?

Refrigeration Oils FUCHS LUBRICANTS GERMANY Facts and figures Company: FUCHS LUBRICANTS GERMANY GmbH, a company of the FUCHS Group Locations: Mannheim, Dohna, Kaiserslautern, Kiel and Wedel; approx. 1,400 employees Product range: A full range of more than 3,000 products for all application areas Certifications i. a.: ISO 9001, IATF 16949, ISO 14001, ISO 45001, ISO 50001, ISO 21469, HALAL, KOSHER (detailed certifications at www.fuchs.com/de/en) Gate-to-Gate* CO2-compensated FUCHS LUBRICANTS GERMANY is a subsidiary of FUCHS SE, the world's largest independent supplier of lubricant solutions. Around...

The development of highperformance refrigeration oils Requirements and classification of refrigeration oils Mineral oil-based refrigeration oils 4 good reasons for using RENISO refrigeration oils Physical and chemical data of refrigeration oils

Refrigeration oils play an important role in the area of lubricants and lubrication technology. The expected long life of refrigerant compressors largely depends on the quality of the used refrigeration oil. Apart from favourable solubility characteristics with the refrigerant, good low-temperature flowability, high thermal stability, good ageing resistance and high chemical stability in the presence of refrigerant are additional important parameters. Sealing compatibility of RENISO refrigeration oils Overview of RENISO products Typical technological tests for refrigeration oils Refrigeration...

The development of high-performance refrigeration oils The interaction with other substances, in particular with the used refrigerant, at fluctuating high and low temperatures creates very specific demands on the lubricant in the circuit. The main function of a refrigeration oil is to ensure the lubrication of all moving parts in the refrigerant compressor. Depending on the type of compressor, heat must also be dissipated and compression chambers and valves have to be sealed. Depending on the compressor type, the efficiency of the oil separator, the design of the refrigeration system, the operating...

RENISO Refrigeration Oils under the sign of climate protection Our research and development department deals with comprehensive researches on refrigeration oils with all relevant refrigerants. In general sustainable refrigerants are becoming more and more important. Low GWP refrigerants (GWP = Global Warming Potential = contribution of a refrigerant to the global warming) like e.g. carbon dioxide, R744 (GWP=1) and propane, R290 (GWP=3), but also synthetic fluorinated alternatives like R1234yf and R1234ze(E) (both GWP<1) are already increasing in their use. In contrast, the use of common refrigerants...

4 good reasons for using RENISO refrigeration oils Performance comparison RENISO TRITON SEZ 80 versus standard polyol ester (POE) refrigeration oils. High thermo-chemical stability e.g. in Sealed Glass Tube Test (ASHRAE 97-2007) Low varnish / low sludge formation e.g. in FUCHS In-house test (evaluation of oil sludge in beaker with bearing roller after 168h/135 °C) High stability Standard POE refrigeration oils Very good miscibility with HFC/FC: e.g. in miscibility evaluation (DIN 51514) Standard POE refrigeration oils Reliable wear protection e.g. in bearing wear testing (DIN 51819-3) Good miscibility...

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REQUIREMENTS AND CLASSIFICATION OF REFRIGERATION OILS DIN 51503 describes the minimum requirements refrigeration oils have to fulfil. This standard applies to oils which are used to lubricate and cool refrigerant compressors while under the influence of the refrigerant. For hydrocarbon refrigerants also so called gas compressor oils can be applied, e.g. RENOLIN LPG 185 in combination with propane or propene. It has to be considered that these lubricants are not dried during production and therefore may have to undergo a drying procedure prior to be filled in refrigerant equipment.

Refrigeration Oils The classification of refrigeration oils according to DIN 51503, part 1 (December 2021) is in line with the refrigerant used in the refrigeration system KAA – for ammonia (R717) Refrigeration oils not miscible with ammonia – mineral oils and/or synthetic oils – based on polyalphaolefin (PAO) or alkyl benzene (AB) or hydrogenated mineral oils. In most cases, highly-refined, naphthenic refrigeration oils are used as KAA products. Hydrogenated mineral oils and PAO get more and more important. mineral oils and alkyl benzenes (in some cases ester oils also possible). Mostly highly-refined,...

PHYSICAL AND CHEMICAL DATA OF REFRIGERATION OILS Additional information on the characteristics of refrigeration oils is included in the appendix to DIN 51503, part 1 (2021). Important parameters such as the flocculation point with corresponding refrigerants, copper corrosion, electrical conductivity in correlation with water content, Falex lubricity test or the modified Almen-Wieland test under refrigerant atmosphere are included. The appendix also names the corresponding pVT diagrams (Daniel Plots) of the oil-refrigerant combinations. The water contents given in DIN 51503, part 1 (2021), are...

Refrigeration Oils Typical data to characterize a refrigeration oil Colour number according to DIN ISO 2049: The colour number is product specific and can vary between crystal-clear (colour number 0) and dark brown (colour number 5). Density according to DIN 51757 (ASTM 4052): Density refers to the mass of a fluid in relation to its volume. In general to characterize a refrigeration oil the density at 15 °C is reported. The density of a refrigeration oil is largely dependent on the temperature of the fluid because the volume increases with higher temperature. Density correspondingly falls at...