Mobil Turbo 319A-2
Mobil Turbo 319A-2
Synthetic Aircraft-Type Gas Turbine Lubricant
Description
Mobil Turbo 319A-2 is a fully synthetic lubricant developed to meet the performance requirements of Russian gas turbine aircraft engines which operate on mineral-oil-based lubricants. Formulated from a synthetic hydrocarbon combination of polyalphaolefin (PAO) and hindered ester based stock, Mobil Turbo 319A-2 is fortified with a unique chemical additive system. The resulting product has far superior thermal and oxidation stability than mineral-oil-based lubricants. The ability of Mobil Turbo 319A-2 to resist deterioration and deposit formation allows the potential for extended oil drain intervals and less frequent maintenance.
The closely controlled viscosity of Mobil Turbo 319A-2 at -51º C, along with a -60ºC pour point, ensure good low-temperature fluidity, permitting engine starting and lubrication at low temperatures. Mobil Turbo 319A-2 exhibits excellent bulk oil stability at temperatures up to 200º C (392º F). The evaporation rate of Mobil Turbo 319A-2 at high temperatures is significantly lower than mineral-oil-based products, and helps minimize oil consumption. The lubricant has excellent resistance to foaming.
Mobil Turbo 319A-2 is compatible with existing seal materials, including F Rubber (Viton A), H Rubber (Buna N), and silicone, as well as 11 metals used in gas turbine construction.
Features and Benefits
Mobil Turbo 319A-2 offers the following advantages and benefits:
· Low evaporation loss and oil consumption
· Reduced sludge and carbon deposits
· Improved bulk oil oxidation stability and extended oil drain intervals
· Compatible with existing seal materials
· Reduced engine maintenance, including potential for extended drain intervals
Applications
Mobil Turbo 319A-2 is recommended for aircraft gas turbine engines that normally operate on mineral-oil-based lubricants, as well as engines approved to operate on oils meeting the specifications listed below.
Mobil Turbo 319A-2 is approved against the following specification of the Russian Central Institute of Aeronatutical Motors (CIAM):
· IMP-10
· MS, 8P, MS-8RK
· 36/1 Ku-A
· VNII NP 50-1-4f and -4u
· B3V and LZ-240
· Mobil Turbo 319A-2 also meets U.S. Military Specification MIL-L-6081C, as well as the essential performance requirements of U.S. MIL-L-7808K, Grade 3.
Typical Characteristics
Mobil Turbo 319A-2 |
|
Physical properties are listed in the table below. Values shown are typical and may vary slightly. |
|
Viscosity |
|
cSt at 40º C |
16.2 |
cSt at 100º C |
3.70 |
cSt at -40º C |
2917 |
cSt at -51º C |
12545 |
Flash point, º C (ºF) |
234 (453.2) |
Pour point, º C (ºF) |
-60 (-76) |
Specific Gravity |
0.852 |
TAN |
0.03 |
Evaporation Loss, % |
0.999 |
5 hr at 175 ºC (347ºF) |
2.4 |
Foam, ml |
|
Sequence 1, 24ºC (75ºF) |
30 |
Foam Stability, after 1 min settling, ml |
0 |
Rubber Swell, % |
|
NBR-H, 168 hr at 70ºC (158ºF) |
11.9 |
FKM, 72 hr at 175ºC (347ºF) |
3.0 | |