VNII NP 50-1-4U TurboSHT-32 grade
TU 38.401-58-12-91 with amend 1-4
"09" july 2007 developer of VNII NP 50-1-4U oil JSC VNII NP (all-Russian Research Institute of Oil Refining) approved and put into operation amend.№3 for TU 38.401-58-12-91, wich granted producing additional oil Grade TurboSHT-32.
Advantages of VNII NP 50-1-4U TurboSHT-32 grade are stronger requirements on quality (see below), possibility to pack oil in cans capacity from 1 up to 20 litres.
Increasing convenience of aviation technic units service we are ready to offer VNII NP 50-1-4U TurboSHT-32 grade in 1 (one) and 20 litres cans with Bericap cover.
VNII NP 50-1-4U oil sertified by FSUE State Reseach Institute of Civil Aviation — FSUE GosNII GA (№ ROSS RU.HX06.H00871, Validity till "11" july 2010).
VNII NP 50-1-4U is a synthetic diester oil with a highly-efficient additives package, which permits to use it within the temperature range from -60°C to 200°C with the oil overheating parameter of up to 225°C. It can be used instead of IPM-10, VNII NP 50-1-4F, Turbonycoil 210A (TN 210A), Mobil Turbo 319A-2 (MT 319A-2) and other oils, don't demands replacement of rubber parts or construction materials, and is fully compatible with VNII NP 50-1-4F in any/all parities.
This oil is approved for use in all aircraft turbofan and gas-turbine engines. Currently it is used as one of the basic lubricants for the military hardware. It is recommended for advanced machinery such as Su-35 with 117S turbofan engines, Mig-35, Mig-29OVT with RD-33/RD-93 turbofan engines.
It is used in gas-turbine engines of Sukhoi (Su), Mikoyan (Mig), Tupolev (TU), Ilushin (Il), Yakovlev (Yak) and Antonov (An) military and civil aircraft and in the turbo-compressor unit of Mi-26 helicopters power-plant assemblies, as well as in aircraft gas-turbine engines of gas-compressing plants.
VNII NP 50-1-4U properties
|Oil parameters in accordance with regulatory documentation (GOST/TU)||VNII NP 50-1-4U||VNII NP 50-1-4U TurboSHT-32||Test method|
|Kinematic viscosity, mm2/с (cSt):||GOST 33-2000|
|at 100°С, min.||3,2||3,2|
|at minus 40°С, max.||2700||2700|
|at minus 54°С, max.||8500||8000|
|Pour point, °C, max.||-60||-60||GOST 20287-91|
|Open flash point, °C, min.||204||215||GOST 4333-87|
|Acid number, mg KOH per 1 g of oil, max.||0,25||0,15||GOST 5985-79|
|Water-soluble acid and alcalis content, %||Absent||Absent||GOST 6307-75|
|Water content||Absent||Absent||GOST 1547-84|
|Mechanical impurities content,%||Absent||Absent||GOST 6370-83|
|Density at 20°C, g/cm3, max.||0,9280||0,9280||gost 3900-85|
|Ash content %, max.||0,1||0,1||GOST 1461-75|
|Tribological characteristics, taken with a four-ball tester at the air temperature of:||GOST 9490-75|
|critical load (Pk), N (kgf), min.||735 (75)||735(75)|
|wear variable (Diameter Wear), mm, at axial load 196N (20kgf), max.||0,45||0,45|
|Thermal-oxidative stability at 200°C within 50 hours and the air consumption of 10±0,5 dm3/hour||GOST 23797-79|
|а) mass content of residue, insoluble in isooctane, %, max.||0,15||0,1|
|b) acid number after oxidation, mg KOH/g of oil, max.||4,5||3,5||GOST 5985-79 or GOST 11362-96|
|c) kinematic viscosity after oxidation at 100°C, mm2/s (cSt), max.:||3,7||3,7|
|d) weight corrosion index after oxidation, g/dm2 (mg/cm2 ), on plates made of:|
|- wrought aluminum alloy, grade AK4 (GOST 4784-74), max.||±0,1||±0,1|
|- made of grade M1 or M2 copper (GOST 859-78), max.||±0,4||±0,4|
|- steel grade SHH-15 (GOST 801-78)||±0,1||±0,1|
- The VNII NP 50-1-4U oil is a low-inflammable combustible fluid with the flash point of min. 204°C and the self-ignition point of over 500°C.
- It’s a low-risk substance with regard to harmful health effects, which belongs to hazard class 4, subject to GOST 12.1.07-76.
- It cannot form poisonous compounds in the atmosphere or in the waste waters interacting with other substances or under the influence of given factors within the natural environment temperature range.