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TNK PGT Circulation Oils




 

DESCRIPTION

TNK PGT series are specially designed for lubrication of the most critical part of modern steel mills roll neck plain bearings (Morgoil® type).
These oils are manufactured from high quality hydrotreated base stocks compounded with additives improving viscosity index, antioxidation, anticorrosion, antifoam properties and demulsibility.
TNK PGT 510, 515 are developed for application in wire mills.
TNK PGT 522, 532 and 546 are developed for application in rolling mills.

FEATURES

TNK PGT series have following advantages:
 High resistance to oxidation and formation of sludge, excellent demulsibility of the oils allows their application even in unit with high level of contamination by water
 Due to total compatibility to materials commonly used in the bearing assembly and lubrication systems, these oils increase equipment life time and bust the productivity of the steel mill
 Extended viscosity range is a key for optimal matching of oil in terms of lubricating properties and equipment life time
 Improved low-temperature properties in comparison with I-PV series of circulation oils

STANDARDS/APPROVALS

Approved by JSC EZTM (JSC Elektrostal Heavy Engineering Work), meets demands of Morgan Construction.
Series of TNK PGT 510, 515 complies with Morgan No-Twist requirements
Series of TNK PGT 522, 532, 546 complies with Morgan New Oil Advanced Lubricant requirements.

TYPICAL CHARACTERISTICS

TNK PGT 100 150 220 320 460
Kinematic viscosity, mm2/s          
at 40oC 101.6 151.3 224.0 331.6 475.2
at 100oC 11.4 14.9 19.3 24.8 31.3
Viscosity Index 99 98 97 96 96
Density at 20 oC , g/cm3 0.888 0.890 0.894 0.897 0.910
Flash point COC, oC 222 226 234 242 252
Pour point, oC -23 -19 -17 -13 -15
TAN, mg KOH/g 0.30 0.27 0.23 0.25 0.22
Standart demulsibility:          
Time to split the emulsion, min., 10 10 10 10 10
Layers Volume (oil-water-emulsion), cm3 (40-40-0) (40-40-0) (40-40-0) (40-40-0) (40-40-0)
Low Temperature Demulsibility          
Free water - - 32 32 26.5
Water in oil - - 4 3 3
Oil emulsion, cm3 - - 0 0 0

 

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