mercury oils

Hydraulic Lubricants


BioHydra SE Rvn no : 1

Biodegradable hydraulic fluid from renewable sources

BioHydra SE fluids are a range of environmentally acceptable hydraulic oils based on unsaturated vegetable based synthetic esters. BioHydra SE is formulated with high viscosity base oils which provide very low pour points as well. Its additive package ensures good oxidation stability and possesses good anti corrosion and anti wear characteristics and less impact on aquatic and marine environments.


These oils are recommended for mobile as well as stationary hydraulic systems replacing conventional mineral oils especially in areas with increased risk of spillage or accidental leakage. These installations are usually found in offshore applications and other marine environments such as harbour cranes, subsea and life saving equipment. The right choice of the viscosity depends very much on the working and ambient temperature of the equipment. ISO VG 22 and 32 are more suitable for the lower temperatures where ISO 46 is the most all-round product. In case of higher temperatures choose the ISO VG 68. ISO/FDIS 15380 HEES.

Typical performance data

  Test method SE 15
Density @ 20 oC, gr/m3 ISO 3675 0.91
Viscosity @ 40 oC, cSt ISO 3104 15
Viscosity @ 100 oC, cSt ISO 3104 4
Viscosity Index ASTM D2270 170
Pour point, oC ASTM D97 <-45
Flash point, oC ASTM D93 >200
Dry TOST, hours ASTM D-943 >600

Environmental data

Biodegradability, % OECD 301 F Readily biodegradable >80
Toxicity OECD 201-203, 401 Non toxic
Bioaccumulation OECD 305 D No accumulation
Skin and eye irritation OECD 401-402, 404-405 Not irritant
Mutagenity OECD 471 Not mutagenic
Biological renewability, %   >80

Vickers vane wear test

Vane pump Test method Limit, max Result
104C pump, 13.7 MPa, 1,200
min-1, 66 °C, 100 hrs
·     Ring, mg
·     Vanes, mg
ISO 20763 ASTM D7043 120
35VQ25 pump, 20.79 MPa,
2,400 min-1, 93 °C, 150 hrs
·     Ring, mg
·     Vanes, mg
ASTM D6973 75


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