High Performance, High Viscosity index HV Hydraulic Oils The function of hydraulic oil pumps can often be improved irrespective of the machinery driven because they are isolated from the variables found at the workplace. A major factor in the performance of hydraulic system is the fluid medium. This absorbs a relatively large amount of energy when the pump is started-up because of the high internal resistance of hydraulic oil. Excessive friction also occurs if the oil's viscosity is too low and this leads to wear. Such conditions can cause breakdowns. FUCHS has developed a series of so-called "low friction" oils which reduce energy consumption and wear when hydraulic pumps are started-up. These products also improve reliability and eliminate breakdowns caused by insufficient or excess viscosity, both problems associated with normal HM hydraulic oils.
The RENOLIN B HVI series of oils offer the following advantages:
Excellent viscosity-temperature behaviour
Good EP properties and thus protection against wear
Excellent shear stability
Excellent oxidation stability and resistance to ageing
Excellent corrosion protection
Rapid air release and low foaming
Good demulsification characteristics
Good elastomer compatibility
Application:
The RENOLIN B HVI series of oils are not just high grade hydraulic oils but also excellent lubricating oils which can be used for numerous applications.
They are particularly suitable for use in hydraulic equipment operating over a wide temperature range. This means for applications requiring a low start-up viscosity but also a stable protecting lubricating film at high operating temperatures. RENOLIN B HVI series of oils contribute to a rationalization by reducing the variety of hydraulic oils in use.
RENOLIN
B 15 HVI
B 32 HVI
B 46 HVI
Hydraulic oil type
acc. to ISO 6743-4¹
HV 15
HV 32
HV 46
acc. to DIN 51 502¹
HVLP 15
HVLP 32
HVLP 46
Characteristics
Unit
Test method
Colour
0.5
1
1
ASTM D 1500
Kinematic viscosity
at 40 °C
mm²/s
15
32
46
ASTM D 445
at 100 °C
mm²/s
3.8
6.8
8.9
ASTM D 445
Viscosity index
153
180
180
ASTM D 2270
Density at 15 °C
kg/l
0.855
0.876
0.87
ASTM D 1298
Flash point, Cleveland open cup
°C
180
178
178
ASTM D 92
Pour point
°C
- 36
- 42
- 33
ASTM D 97
Neutralization number
mg KOH/g
0.3
0.3
0.3
ASTM D 974
Saponification number
mg KOH/g
0.6
0.6
0.6
ASTM D 94
Oxide ash
% mass
0.1
0.1
0.1
ASTM D 482
Water content
% mass
not traceable
not traceable
not traceable
ASTM D 95
Insolubles
% mass
not traceable
not traceable
not traceable
DIN 51 592
Demulsification
min
15
15
18
DIN 51 599
Air release at 50 °C
min
1
2
3
ASTM D 3427
Foaming,
seq. I
ml
10/0
20/0
40/0
ASTM D 892 seq. I-III
seq. II
ml
30/0
20/0
20/0
ASTM D 892 seq. I-III
seq. III
ml
10/0
60/0
50/0
ASTM D 892 seq. I-III
Copper corrosion
degree of corr.
1a-100A24
1a-100A24
1a-100A24
ASTM D 130
Rust prevention
pass A
pass A
pass A
ASTM D 665
Shear stability after 250 cycles, viscosity decrease at 100 °C
%
2
5
7
IP 294
Ageing behaviour, increase in neutralization number after 1000 h
mg KOH/g
< 2
< 2
< 2
ASTM D 943
FZG mechanical gear rig test
load stage
12
12
12
DIN 51 354-2
Vickers vane pump test, loss of mass
on ring
mg
< 120
< 120
< 120
IP 281
on vanes after 250 h
mg
< 30
< 30
< 30
IP 281
Effect on SRE-NBR 1 seal material acc. to DIN 53 538-1 at 100 °C +/– 1 °C after 7 days +/– 2 hours,
relative volume change
%
15
11
0
DIN 53 521 together with DIN 53 505
change in Shore A hardness
Shore
– 5
– 5
– 5
DIN 53 521 together with DIN 53 505
¹ See data table for deviations from the minimum requirements
