Refrigeration Lubricants

Hampshire Oil and Grease are Authorised UK Distributors for FUCHS Group which develops, produces and distributes lubricants and related specialities, for a vast variety of industry sectors and their applications, including Refrigeration requirements.

The expected long life of refrigerant compressors largely depends on the quality of their refrigeration oil. Favourable solubility characteristics with the refrigerant, optimal low-temperature flowability, high thermal stability, competent ageing resistance and high chemical stability in the presence of the refrigerant, are all crucial parameters.

The principal function of refrigeration oil is to adequately lubricate all moving parts in the refrigerant compressor. Fluctuating high and low temperatures creates very specific demands on the lubricant. Depending on the type of compressor, heat must also be dissipated whilst compression chambers and valves must be sealed. The compressor type, the efficiency of the oil separator, the design of the refrigeration system, the operating parameters, the refrigeration oil selection etc. are responsible for varying amounts of oil present in the refrigerant circuit.

Oil content in the system usually can reach ranges from 1 to 5% and in special cases also higher values. To ensure reliable oil circulation and to ensure that the oil returns from the “cold” part of the circuit, refrigeration oils with satisfactory miscibility in the corresponding refrigerant are used. Particularly during start-up periods, oil enrichment due to pronounced oil foaming as a result of dissolved refrigerant can occur. When the refrigerant evaporates, the oil then cools down. If the flowability of the remaining oil is not sufficient (due to high viscosity and/or poor refrigerant miscibility), a reliable return to the compressor is not possible. The compressor, on the other hand, requires a certain viscosity of the oil-refrigerant mixture. The optimum operating viscosity of the lubricant – subject to the influence of the refrigerant (pressure and temperature-related dissolution of refrigerant) – thus represents a compromise between the minimum viscosity required for reliable compressor lubrication and the necessary low-temperature flowing properties needed to ensure sufficient oil circulation in the circuit.

As Authorised UK Distributors for FUCHS Lubricants, Hampshire Oil and Grease supply innovative and reliable solutions for refrigeration lubrication applications. Whatever your refrigeration lubrication requirements, Hampshire Oil and Grease have the ideal lubricant for your specific applications or process.

• Mineral oil-based refrigeration oils
• Synthetic refrigeration oils

Not only do Hampshire Oil and Grease supply FUCH’s innovative lubricant solutions, Hampshire Oil and Grease also offer support, expertise & recommendations to meet customers’ demands; for product performance and sustainability, safety and reliability, efficiency and cost savings.

For more information call us on

01489 346519

Hampshire Oil and Grease also offer support, expertise & recommendations to meet customers’ demands; for product performance and sustainability, safety and reliability, efficiency and cost savings.