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Elmet Technologies

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ExxonMobil 846 Mobil DTE 800 Series
Categories: Fluid; Lubricant

Material Notes: Mobil DTE 832 and 846 are superior performance turbine oils designed for use in steam turbines, gas turbines and combined cycle gas turbine (CCGT) applications under the most severe operating conditions. These progressive products are based on high quality hydrotreated basestocks for exceptional thermal/oxidation resistance along with specially chosen additives engineered to provide the deposit control and "keep-clean" performance required by severe duty gas turbines as well as excellent water separability needed for steam turbine operation. The formulations also include a non-zinc antiwear system to meet the load carrying requirements of geared turbines. In addition to meeting the separate requirements of modern steam and gas turbine designs, Mobil DTE 800 Series are excellent choices for combined cycle applications that require a single oil for a gas turbine and a steam turbine run in tandem. Simultaneously meeting both deposit control and water separation requirements is the key performance highlight of this advanced lubricant technology. The excellent thermal/oxidative resistance of Mobil DTE 832 and 846 ensures that they can be operated in the most severe turbine environments. The performance features of Mobil DTE 800 Series oils translate into excellent equipment protection, reliable operation, with reduced down-time and extended oil charge life. These products also provide the ultimate flexibility to the operator because they can be used in all turbine types: steam, gas and geared-turbines.

Mobil DTE 832 and 846 are superior performance turbine oils designed for use in steam and gas turbine oil systems, direct- or gear-coupled and turbine speed control mechanisms. Specific applications include: Combined cycle (CCGT) electric power generation applications including those with a common circulation system for the steam turbine and gas turbine; Lubrication of steam turbine or gas turbine units used for electric power generation, natural gas pipeline transmission, process operations and cogeneration plants

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Physical PropertiesOriginal ValueComments
Specific Gravity 0.870 g/cc
@Temperature 15.6 °C
ASTM D4052
Viscosity Measurement 106Index; ASTM D2270
Kinematic Viscosity at 40°C (104°F) 42.4 cStASTM D445
Kinematic Viscosity at 100°C (212°F) 6.2 cStASTM D445
Oxidative Stability 1100 hourRotating Bomb Oxidation Test (RBOT); ASTM D2272
 >= 10000 hourTurbine Oil Stability Test (TOST); ASTM D943
 
Thermal PropertiesOriginal ValueComments
Pour Point -30.0 °CASTM D97
Flash Point 244 °CASTM D92
 
Descriptive Properties
Air Release, ASTM D3427, minutes2@ 50°C
Copper Strip Corrosion1A3 hrs @ 100°C
Foam Sequence I, ASTM D97120/0
Foam Sequence II, ASTM D89320/0
Foam Sequence III, ASTM D89320/0
FZG Scuffing, DIN 5182, A/8.3/90, Fail Stage9
Rust Prevention, Distilled WaterpassASTM D665A
Rust Prevention, Synthetic Sea WaterpassASTM D665B

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