Typical Physical Characteristics
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Shell Naturelle |
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HF-E 15 |
HF-E 32 |
HF-E 46 |
HF-E 68 |
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ISO Viscosity Grade |
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15 |
32 |
46 |
68 |
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(ISO 3348) |
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Colour |
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Green |
Green |
Green |
Green |
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Kinematic Viscosity |
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@ |
40°C |
cSt |
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14.1 |
31.6 |
42.4 |
64.9 |
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100°C |
cSt |
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4.2 |
6.3 |
8.4 |
12.1 |
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(ASTM D 445) |
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Viscosity Index |
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232 |
156 |
178 |
187 |
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(ISO 2909) |
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Density @ 15°C kg/l |
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0.892 |
0.918 |
0.919 |
0.928 |
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(ISO 12185) |
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Pour Point |
°C |
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-54 |
-60 |
-54 |
-39 |
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(ISO 3016) |
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Flash Point |
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202 |
236 |
219 |
226 |
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(Cleveland Open Cup) |
°C |
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(ISO 2592) |
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Specifications, Approvals and Recommendations
- Shell Naturelle HF-E 32, 46 and 68 are environmentally acceptable hydraulic fluids based on synthetic esters and can be used where ISO 15380 or VDMA 24568 HEES fluids are specified.
- Naturelle HF-E 15 is a mixture of synthetic ester and vegetable oil.
- Naturelle HF-E 32 and 46 meet the environmental requirements of Swedish Standard SS 15 54 34 and are SP-listed.
- Naturelle HF-E 15, 46 and 68 are on the ‘Positivliste’ and qualify for funding under the German ‘Market Introduction Programme’ for biolubricants.
- Naturelle HF-E has Eaton Vickers M-2950 S and I-286 S approval.
- The improved anti-wear properties, and naturally high viscosity index (VI) of Naturelle Fluids HF-E, mean that they can often be used where ISO 11158 (HM/HV) and DIN 51524 Part 2 or Part 3 (HLP/HVLP) mineral oil hydraulic fluids are specified. However, bulk fluid operating temperatures should not be allowed to exceed 90°C and optimum fluid life will be realised if operating temperatures are maintained at approximately 55°C.
- Heavy-duty hydraulic systems for construction and earth moving equipment
- Machine tool hydraulic systems
- Hydrostatic drive gears
- General industrial control equipment and hydraulic systems
- Moderately rated gearboxes where an anti-wear hydraulic oil is specified
Applications
Shell Naturelle HF-E fluids are advanced hydraulic fluids for use in power transmission and hydraulic systems. They are biodegradable with a low ecotoxicity, and are particularly suited for use in environmentally sensitive areas.
Synthetic esters, blended with specially tailored additive systems, provide Shell Naturelle Fluids HF-E with a superior balance of lubrication performance and compatibility with the environment.
Compatibility with Mineral Oils
Shell Naturelle Fluids HF-E is miscible with conventional mineral oil based hydraulic oils in all proportions. However, in order to ensure that the environmental properties and performance of Naturelle HF-E are maintained, the system should be drained and flushed prior to fluid change over.
Owing to the surface wetting properties of Shell Naturelle HF-E, if the system was previously operated using a mineral oil hydraulic fluid, deposits formed in the system during operation may be loosened and deposited in system filters. The filters should therefore be checked at regular intervals after fluid change over.
Seal & Paint Compatibility
Shell Naturelle HF-E is compatible with all seal materials and paints normally specified for use with petroleum mineral oils. Certain plastics and industrial adhesives may be adversely affected and advice should be sought from the respective manufacturers.