HCFC applications

ZEROL ™ alkylbenzene oils have several major advantages over mineral oils in applications with R22, including better low temperature miscibility, and superior thermal and oxidative stability. Quality is also more consistent because ZEROL ™ is a synthetic product.

ZEROL ™ alkylbenzene oils have broad industry approval including names such as Bock, Danfoss and Carrier.

ZEROL ™ oils have been the choice for many of the new service blends designed to replace R12 and R502. These blends include MP39, HP80, and HP81.

Ammonia applications

With current growth in Ammonia refrigeration applications, ZEROL™ alkylbenzene oils have seen renewed interest and growth. The good low temperature performance and excellent thermal and oxidative stability offers major advantages over traditional mineral oils for ammonia applications, while providing more attractive cost performance than other synthetics. The excellent chemical stability of these oils results in varnish and coke free operation thereby extending maintenance intervals and improving efficiency of the refrigeration system.

HFC applications

Recent studies have shown that oils derived from ZEROL™ alkylbenzenes can be used with HFC refrigerants such as R134a, R407C, and R410A in specific applications. These applications include household refrigerators, window air conditioning units, and small split systems. Major advantages of using ZEROL™ alkylbenzene oil instead of polyolester oil in these HFC systems include significant cost saving in both oil and in handling procedures, and also superior lubrication in certain systems.

For systems that require polyolester oils, Shrieve also offers ZEROL™ ESTER polyolester oils. These oils come in a variety of viscosities, and have years of proven reliability.

CO2 applications

The HVAC industry is realising significant changes due to problems associated with ozone depletion. Amongst the various refrigerants proposed with less ozone depleting potential, carbon dioxide (R744) offers significant opportunities, which is leading to increasingly widespread application of this refrigerant. Areas where development is being extensively undertaken include vehicle air-conditioning, heat pumps for sanitary water heating, and larger commercial and industrial refrigeration units. Shrieve offer a full viscosity range of speciality double end-capped polyalkylene glycol lubricants suitable for use in all systems where CO2 refrigerant is employed.

ZEROL ™ “RFL-EP” polyalkylene gycol lubricants oils have several major advantages over alternate lubricants in applications with CO2 including achieving the required levels of miscibility with CO2 over a wide range of lubricant concentration and temperature, reduced hygroscopicity compared with water absorbing tendancy of many other PAGs, excellent chemical, thermal and hydrolytic stability, and superior lubricity.

ZEROL ™ “RFL-EP” polyalkylene glycol lubricants have industry approval for CO2 applications, including Dorin and Mycom.

Vehicle Air-Conditioning

Almost all new mobile air conditioning systems are filled with R-134a and lubricated with polyalkylene glycol lubricants. Synthetic polyalkylene glycol (PAG) lubricants demonstrate excellent lubricity and good solubility with refrigerant HFC R-134a. Shrieve Products International offer two ranges of polyalkylene glycol product for mobile air conditioning systems.

ZEROL ™ “PAG” grades are fully formulated ISO grade polyalkylene glycol lubricants designed specifically for application with R-134a in mobile air-conditioning systems. These products are manufactured to exacting standards and providing high and consistent product quality. ZEROL ™ “PAG”  grades are designed for application in A/C systems where the compressor requires a lubricant with viscosity of 46 – 150 cSt @ 40ºC.

The range offers high and premium levels of lubrication performance, equivalent and in many aspects superior to other industry standards.

ZEROL ™ RFL-X Grades are speciality double end-capped fully formulated ISO grade polyalkylene glycol lubricants designed specifically for optimum levels of performance with R-134a in mobile air-conditioning systems. These products are offered in the highest and most consistent product quality with high capping ratios. They are formulated for extremely high levels of performance in A/C systems where the compressor requires a lubricant with viscosity of 46 - 150 cSt @ 40ºC. They are complementary to the basic ZEROL™  PAG product range recommended as a standard for Auto A/C applications.

New developments

• At this time, we are also in the process of commercialising a brand new lubricant enhancer family, known as   our "ICE" technology. These products are to be branded for stationary refrigeration as ZEROL ICE™ range   and will be launched in Europe during 2005. ZEROL ICE™ is an innovative oil enhancer that when added to   existing lubricants at additive levels, can provide major improvements in lubricity and wear performance. This   can lead to major benefits in terms of:

                        •INCREASED SYSTEM EFFICIENCY/REDUCED POWER CONSUMPTION
                        •EXTENDS SYSTEM LIFE BY REDUCING WEAR AND SYSTEM LOADING
                        •ENHANCED COOLING PERFORMANCE AND NOISE REDUCTION

A full presentation on ZEROL ICE™ is available for downloading.  For more information on ZEROL ICE™ or any other of our ZEROL™ products please contact us.

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