Mobil DTE 732 (55 Gal. Drum)
Engineered to meet or exceed the requirements of steam and gas turbine circulation systems, Mobil DTE 732 is a zinc-free turbine lubricant providing effective antioxidant, rust and corrosion inhibitors. Mobil DTE 732 meets or exceeds most major turbine equipment specifications and industry specifications, and is ISO VG 32. Specific applications for Mobil DTE 732 include gas or steam turbine prime movers; hydroelectric turbine applications; electric power generation for high-output base load utilities; gas turbine combined cycle power plants operating in base load or peak generation modes; and gas turbines in captive power plants. Mobil DTE 732 demonstrates superb water separability, plus high resistance to emulsion formation and anti-foaming agents that ensure consistent operation. In addition, the enhanced air release properties of Mobil DTE 732 are critical for turbine hydraulic control mechanisms.
Features
Mobil DTE 700 Series offers the following features and potential benefits:
| Features | Advantages and Potential Benefits |
| Meets or exceeds most major turbine equipment builder specifications and industry specifications (ISO VG 32) | Simplifies lubricant selection and application / Assures compliance with equipment builder’s warranty / Minimizes lubricant inventory |
| Superior oxidation, chemical and color stability | Designed to provide extended oil charge life and help reduce oil purchases and disposal costs Helps control deposit formation to help reduce filter plugging and equipment fouling for reducing downtime and maintenance costs High level of turbine system reliability and reduced unscheduled downtime |
| Excellent water separability | Helps to insure good lubrication film to protect turbine bearings / Maximizes water removal system efficiency and minimizes oil replacement costs |
| Enhanced rust and corrosion protection | Prevents corrosion of critical oil system components for reducing maintenance and prolonging component life |
| Rapid air release and resistance to foaming | Prevents erratic operation and pump cavitation, reducing pump replacement and increasing pump efficiency |
| Zinc Free | Reduces environmental impact |
Applications
Mobil DTE 700 Series are designed to meet or exceed the requirements of circulation systems of steam and gas turbines. Specific applications include
- Electric power generation for high output base load utilities
- Gas Turbine Combined Cycle Power Plants operating in base load or peak generation modes
- Gas turbines in Captive Power plants
- Gas or steam turbine prime movers
- Hydroelectric turbine applications
Specifications
| Mobil DTE 700 Series meets or exceeds the requirements of | Mobil DTE 732 | Mobil DTE 746 | Mobil DTE 768 |
| ASTM 4304 Rev A Type I | X | X | X |
| ASTM 4304 Rev A Type III | X | X | |
| China GB11120-2011, L-TGA | X | X | X |
| China GB 11120-2011, L-TSA(Class A) | X | X | X |
| China GB 11120-2011, L-TSA(Class B) | X | X | X |
| DIN 51515-1: 2010-2 | X | X | X |
| DIN 51515-2: 2010-2 | X | X | |
| GE GEK-27070 | X | ||
| GE GEK 32568 J | X | ||
| GE GEK-46506D | X | ||
| ISO L-TGA (ISO 8068, 2006) | X | X | X |
| ISO L-TSA (ISO 8068, 2006) | X | X | X |
| JIS K-2213 type 2 w/add. | X | X | X |
| Siemens Industrial Turbomachinery MAT 81 21 01 | X | ||
| Siemens Industrial Turbomachinery MAT 81 21 02 | X | ||
| Siemens Westinghouse PD-55125Z3 | X |
| Mobil DTE 700 Series has the following builder approvals: | Mobil DTE 732 | Mobil DTE 746 | Mobil DTE 768 |
| Alstom Power - HTGD 90117 | X | X | |
| Siemens Power Generation TLV 9013 04 | X | X | |
| Siemens Power Generation TLV 9013 05 | X | X |
| According to ExxonMobil, the DTE 700 Series is of the following quality level: | Mobil DTE 732 | Mobil DTE 746 | Mobil DTE 768 |
| GE GEK-28143A | X | X |
Typical Properties
| Mobil DTE 700 Series | 732 | 746 | 768 |
| ISO VG | 32 | 46 | 68 |
| Viscosity, ASTM D 445 | |||
| cSt @ 40°C | 30 | 44 | 64 |
| cSt @ 100°C | 5.5 | 6.8 | 8.6 |
| Viscosity Index, ASTM D 2270 | 117 | 113 | 110 |
| RPVOT, ASTM D2272, minutes | 1000 | 1000 | 1000 |
| TOST, time to 2.0 NN hours, ASTM D943, hours | 10,000 | 10,000 | 8,000 |
| Neutralization Number,mg/KOH g ASTM D974 | 0.10 | 0.10 | 0.10 |
| Pour Point, °C, ASTM D 97 | -30 | -30 | -30 |
| Flash Point, °C, ASTM D 92 | 228 | 230 | 242 |
| Density @ 15°C, kg/l, ASTM D 1298 | 0.85 | 0.86 | 0.87 |
| Foam Sequence I, mL ASTM D892 | 0/0 | 0/0 | 0/0 |
| Foam Sequence II, mL ASTM D892 | 0/0 | 10/0 | 0/0 |
| Foam Sequence III, mL ASTM D892 | 0/0 | 0/0 | 0/0 |
| Air Release, 50ºC, mins,ASTM D3427 | 2 | 3 | 4 |
| Demulsibility, @ 54 °C, time to 3ml emulsion, ASTM D1401, minutes | 10 | 10 | 10 |
| Rust Protection, ASTM 665B | pass | pass | pass |
| Copper Corrosion, ASTM D130 | 1B | 1B | 1B |
| FZG Scuffing, ISO 14635-1, A/8.3/90, Fail Stage | 6 | 6 |
