شرکت تامین روانکار ایرانیان

شرکت نفت شل، (به انگلیسی: Shell Oil Company) شرکت نفت و گاز آمریکایی و شعبه کمپانی رویال داچ شل در ایالات متحده آمریکا می‌باشد.
این شرکت در زمینه استخراج نفت و گاز طبیعی، بازاریابی فرآورده‌های نفتی، همچنین تولید محصولات پتروشیمی فعالیت می‌کند.
شرکت نفت شل، با در اختیار داشتن بیش از ۲۵٫۰۰۰ جایگاه پمپ بنزین در ایالات متحده، مالک بزرگترین شبکه عرضه سوخت در این کشور می‌باشد. شمار کارکنان این شرکت حدود ۲۲٬۰۰۰ نفر است و دفتر مرکزی آن در هیوستون، تگزاس قرار دارد.

Shell Alexia Oil 50

Premium cylinder oil for low-speed diesel engines

Shell Alexia Oil 50 is a premium grade cylinder lubricant for use in all types of low speed crosshead diesel engines burning residual fuels with sulphur contents of up to 3.5% weight.

It is ideally suited for the new generation of highly rated, fuel efficient, slow-speed marine diesel engines operating with higher pressures, higher temperatures and longer strokes.

It is a blend of highly refined, high viscosity index base oils, and a unique additives technology developed by Shell Research.

Applications

     Low-speed marine diesel engines burning heavy fuel with a relatively high sulphur content of between 1.0 to 3.5% weight.

     Slow speed marine diesel engine cylinders

Performance Features

    Unique additive technology

       Imparts outstanding acid neutralising properties to counter corrosive wear resulting from the use of high sulphur fuels

    Minimum deposit formation

       On cylinder ports, pistons, piston rings, ring grooves and under piston spaces

    Low cylinder and piston ring wear

       Cylinder wear rates below 0.05 mm per 1000 hours are commonly experienced

    Excellent engine cleanliness

       Extended interval between maintenance schedules  –  Periods between piston overhauls of up to two years are not unusual

    Storage stability

       Completely stable in storage under all the widely varying conditions encountered aboard ship

    Sight-glass fluid compatibility

       Compatible with all normal lubricator sight glass fluids

    Service experience

       Developed over 35 years in close co-operation with ship-owners

Performance Specifications

All manufacturers of slow-speed crosshead diesel engines approve the use of Shell Alexia Oil 50

Oil Feed Rates

Insufficient cylinder oil feed rates can lead to corrosive wear, seized and broken rings and consequent blow-by and scavenge fire risks, and to the formation of excessive and tenacious deposits.

To obtain optimum performance with Shell Alexia Oil 50 it is important to:

   Observe the engine manufacturers’ recommended cylinder oil feed rates as the minimum.

   Consider using higher rates, especially when running in new liners and/or rings

   Equally distribute the oil between injection quills

   Ensure the lubricator drive system is well maintained and properly adjusted

   Clean and overhaul lubricator boxes according to engine manufacturers’ recommendations

Seal Compatibility

Shell Alexia Oil 50 is compatible with all normal oil seal materials.

Advice

Advice on applications not covered in this leaflet may be obtained from your Shell Representative.