Mobil DTE™ Oil Double Letter Series

Circulating Oils

The Mobil DTE Oil Double Letter Series of lubricants are high performance heavy duty circulating oils primarily intended for continuous reuse in circulation lubrication systems for gears and bearings. They are formulated from high quality base stocks and a proprietary additive system to provide superior protection against rust, excellent resistance to oxidation and thermal degradation, and a high level of protection against wear, plus excellent resistance to high temperature corrosion of soft metals. They possess good demulsibility that permits water and other contaminants to separate readily from the oil in the system reservoir. The Mobil DTE Oil Double Letter Series are available in four ISO viscosity grades from 150 to 460.


The Mobil DTE Double Letter Series family of products provides a versatile lubricant source for a wide range of industrial equipment. They provide the users with very reliable and efficient operation in industrial circulating system applications, as well as other lubricant application methods, including hydraulic systems. They are particularly resistant to the effects of prolonged high temperature exposure and perform very well in circulating systems with short oil residence times. Mobil DTE Double Letter Series oils have very good water seperability properties, which allows water to separate readily in the system reservoir. Their high level of anti-wear properties results in exceptional equipment performance that not only results in fewer breakdowns but helps improve production capacity.

This combination of benefits has Mobil DTE Oil Double Letter Series the product of choice for many users around the world, for the last several decades.

美孚DTE 双字母系列润滑油是高性能重负荷循环油,主要在齿轮和轴承的循环润滑系统中连续反复使用。这些油品配方采用高质量 基础油和卓越的添加剂系统,具有出色的防锈、抗氧化和抗热降解以及抗磨损保护性能,并对软金属有出色的防高温腐蚀能力它们有很好的抗乳化能力,使水和其它杂质在系统储槽里很容易从油中分离出来。美孚DTE 双字母系列有从150到460的四种粘度等级 。

美孚DTE 双字母系列产品系列族为广泛的工业设备提供多种润滑剂,为用户的工业循环系统及其它润滑应用提供可靠, 高效的运转。 它们能在长期高温下运行,油的滞留时间短,在循环系统中性能出色。美孚DTE 双字母系列油品的水分离特性卓越, 水很容易 在系统储槽中分离出来。

由于具有这些综合优点,美孚 DTE 双字母系列近几十年来一直是全世界许多用户的优选产品。特性与优点

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Mobil DTE™ Oil Double Letter Series提供 4 个润滑油等级。

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Features and Benefits

The Mobil DTE family of products is well known and highly regarded world-wide based on their outstanding performance and the RandD expertise and the global technical support which stand behind the brand. The highly versatile performance of one series of oils in this family, Mobil DTE Oil Double Letter Series oils, has made them the choice of many users around the world for many decades.

Mobil DTE Named oils enjoy an excellent reputation in the lubrication of the circulation systems of industrial gearboxes, plus a wide variety of ancillary equipment, including hydraulic systems. As designs change and increase in severity, it is the challenge of our scientists to understand the effect of these changes on the lubricant and to formulate these products for the broad versatility they are recognized for.

For the Mobil DTE Oil Double Letter Series of lubricants this process has resulted in the use of a proprietary high quality base stocks for outstanding oxidation stability, plus a unique additive combination to ensure the excellent, wide-ranging performance of these oils. A review of the features, advantages and potential benefits of the product are shown below:

FeaturesAdvantages and Potential Benefits
Excellent thermal/oxidative and chemical degradation resistanceLong lubricant charge life giving extended drain periods and reduced product replacement costs; reduced filter deposits and longer filter life
Outstanding anti-wear performanceReduced pump wear leading to longer pump life, protection of critical bearings and gearing
Protection against rust and corrosion in both the liquid and vapour phaseEnhanced system cleanliness for reduced maintenance and un-planned stoppages
Good demulsibility and avoids emulsion formationImproved operating efficiency and lower operating costs
Multiple application capabilityReduced plant inventory savings

Applications

These oils are intended primarily for the lubrication of plain bearings, roller bearings, parallel shaft and bevel gearing. They are suitable as multipurpose lubricants in systems not subject to shock loading and which do not require extreme pressure performance. They are used in applications using splash, bath and ring oil arrangements and all other application methods involving pumps, valves and auxiliary equipment. They are recommended for use in hydraulic systems where higher viscosity oils are specified.

  • Moderate duty spur, bevel, helical and herringbone gear units
  • Circulating systems
  • Mobil DTE Oil Extra Heavy and BB can also be used in hydraulic systems employing gear, vane, radial and axial piston pumps where anti-wear hydraulic fluids are required and clearances are relatively large
  • Certain compressors and vacuum pumps handling air, natural gas and inert gases provided the discharge temperatures do not exceed 150°C

Typical Properties

MOBIL DTE Oil Double Letter SeriesMobil DTE Oil Extra HeavyMobil DTE Oil BBMobil DTE Oil AAMobil DTE Oil HH
ISO Viscosity Grade150220320460
Viscosity, ASTM D 445    
cSt @ 40ºC146218325436
cSt @ 100ºC14.418.824.429.4
Viscosity Index, ASTM D 227096969695
Pour Point, ºC, ASTM D 97-21-18-12-15
Flash Point, ºC, ASTM D 92272284286288
Density @15ºC, ASTM D 1298, kg/l0.890.890.900.90
Demulsibility for non-EP oils, ASTM D2711, ml free water38363935
Water separability, ASTM D 1401, Min. to 40/37/3 ml emulsion @ 82ºC20202020
Rust Prevention, ASTM D 665    
Distilled WaterPassPassPassPass
Sea WaterPassPassPassPass
Copper Corrosion, ASTM D 130 hours @ 100ºC1A1A1A1A
FZG Gear Test, DIN 51354, Failure Stage12121212


Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.

Toxicity class: free BAG T No.: 611500

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