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VNII NP-50-1-4u
TY 38.40158-12-91
High quality synthetic diether oil. Its additives package is more effective than the additive package of VNII NP-50-1-4f, which allows to increase thermo-oxidative stability to 200oC with overheating up to 225oC, at the same time it doesn’t lose the low-temperature characteristics (can be used at the temperature as low as – 60oC) and other operational characteristics.
The oil is compatible with VNII NP 50-1-4f in all respects, doesn’t require rubber and structural material replacement and can be applied in perspective engineering. Major use in military engineering. Highly recommended for perspective engineering.
The oil VNII NP 50-1-4u successfully passed technical testings, including flight testing, which showed that usage of this oil instead of “f” oil allows to increase its working life, the oil mustn’t be changed during the engine working period.
The oil is used in turbojet engines of civil aircraft (Il-96-300, Tu-204, Yak-42, An-74, “Ruslan”), military aircraft (MiG-23, MiG – 27, MiG – 29, An - 72) and helicopters Mi-26.
Properties:
| Kinematic viscosity, cSt | |
| at 100C, not less | 3,2 |
| at -40C, not more | 2700 |
| at -50C, not more | 8500 |
| Flash point in the open crucible,C, not less | 204 |
| Pour point,?, not more | -60 |
| Thermal and oxidation stability at 200C for 50h | |
| a) residue after oxidation, %, not more | 0,15 |
| b) acid number after oxidation, mg KOH|g of oil, not more | 4,5 |
| c) kinematic viscosity after oxidation, cSt, not more | |
| at -40C, not more | - |
| at 100C, not more | 3,7 |
| d) corrosion after oxidation on plates, mg|sm2 , not more: | |
| AK-4 Aluminum alloy (GOST 4784-74) | ±0,1 |
| M1 or M2 copper (GOST 859-66) | ±0,4 |
| ShH-15 steel (GOST 801-60) | ±0,1 |
You can order VNII-NP-50-1-4u by filling online form.
