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VNII NP-50-1-4f
GOST 13076-86
High quality synthetic diether oil with additives, which increase wear-protection characteristics and thermal-oxidative stability. It is used in turbojet airplane engines with the oil temperature (at outcome) up to 175 C (civil aircraft Il-96-300, Tu-204, Tu-214, Tu-334, Yak-42, An-74, An-124 `Ruslan`, military aircraft Su-15, Su-17, Su-20, Su-24, Su-25, Su-27, Su-30, MiG-21, MiG-23, MiG-27, MiG-31, An-72, Tu-22, helicopters Mi-26). It is also applied in turborefrigerating conditioning systems LA and in aviation gas-turbine engines of gas-pumping aggregations.
Properties:
| Kinematic viscosity, cSt | |
| at 100C, not less | 3,2 |
| at -40?, not more | 2000 |
| at -50?, not more | 11000 |
| Flash point in the open crucible,C, not less | 204 |
| Pour point,C, not more | -60 |
| Thermal and oxidation stability at 175? for 72h | |
| a)corrosion after oxidation on plates, mg|sm2 , not more: | |
| - made from ?0CC steel (GOST 4543-71),C4 wrought aluminum alloy (GOST 4784-74), ?l 5 magnesium castable alloy (GOST 2856-79) and from silver (GOST 6836-72) | ±0,2 |
| - M1 copper (GOST 859-78) | ±0,4 |
| b) acid number after oxidation, mg KOH|g of oil, not more | 2,0 |
| c) viscosity change after oxidation, determined at 100C, %, not more | 7 |
| d) appearance of oil after oxidation | transperant, not sediment after sedimentation |
| e) conditions of apparatus and plates after oxidation | no carbon deposits |
| Thermal and oxidation stability at 175C for 50 h and air consumption (10±0,5) dm3/h: | |
| a) residue after oxidation, %, not more | 0,3 |
| b) acid number after oxidation, mg KOH|g of oil, not more | 0,4 |
| c) kinematic viscosity after oxidation, cSt, not more | |
| at -40C, not more | 3500 |
| at 100C, not more | ±2,0 |
| d) corrosion after oxidation on plates, mg|dm2 , not more: | |
| AK-4 Aluminum alloy (GOST 4784-74) | ±2,0 |
| M1 or M2 copper (GOST 859-66) | ±1,5 |
| ShH-15 steel (GOST 801-60) | 0 |
You can order VNII-NP-50-1-4f by filling online form.
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