Ulvac PKS-030 - Pump Oil Characteristics Table

-16-
14.PumpOilCharacteristicsTable
(Table-1) shows the characteristics of pump oils. If you could not get the
specified oil ULVOIL-R-7, you may use another kind of pump oil having almost the
same characteristics as (Table-1).
ROTARY VACUUM PUMP OIL
[Table - 1]
OIL ULVOIL-R-4 ULVOIL-R-7
Component (%)
Saturated
Hydrocarbon 85
Unsaturated
Hydrocarbon 15
Saturated
Hydrocarbon 85
Unsaturated
Hydrocarbon 15
Molecular weight
400 〜 420 450 〜 470
Specific Gravity
at 15℃
0.89 0.89
Viscosity 37.8℃
(Centi stokes) 98.9℃
40 〜 50
5 〜 7
65〜 75
7 〜 9
Viscosity 50℃
(Redwood second) 80℃
100 〜 120
>50
170 〜 180
> 60
Pour Point (℃) -15℃ -15℃
Fire Point (℃)
> 210 > 210
Acid Value (mg KOH/gr) < 0.01 < 0.01
Residual Carborn (%) < 0.05 < 0.1
Vaporized Componemt (%)
98℃ x 5hr
< 0.03 < 0.02
Vapour Pressure (Torr) < 1 X 10
-4
< 1 X 10
-5