South Korea Hiren 77 ( High Vacuum Oil ) is a Lubricant product. Key specs — Origin: South Korea.
Product Description
Specifications: Rotary vane vacuum pump oil: Hiren 77 These vacuum oils have exceptional properties such as: Low vapor pressure High thermal stability Good lubricants properties Excellent compatibility with metals, plastics, elastomers High dielectric properties Low surface tension Packing unit:20 L Typical Physical Properties Molecular weight a. M.
U 728 Specific gravity(20C)(68F) g/cm3 ASTM D1298 0.868 Kinematic viscosity(40C) cSt ASTM D445-94 74.38 Viscosity index 118 Vapor pressure Torr 1x10e-05 Torr 4x10e-03 Pour point C ASTM D97-93 -15C Flash point C ASTM D93-94 260C Oil seperation min 40-40-0(5) Reaction Neutral Ultimate pressure Torr 1x10e-05> Can be applied for all situations in optical science, medicine, coating, lamps and tubes, car industry, packing, metallurgy.
Can be used in one stage large pumps which have high temperature. Can be replaced GS-77, Ultragrade 19.
