Performance Standard

DYNAVIS®

Hydraulic Fluid Performance

Have a look at the most important performance requirements for three hydraulic fluids formulated to the DYNAVIS® standard!


Though ISO viscosity grades differ, they share the extremely high viscosity index of at least 160. The guaranteed minimum energy savings range from 3.5 to 5 percent in a Denison T6C vane pump.

The longevity of ISO 32, 46 and 68 DYNAVIS® formulations is secured by minimum KV100 viscosities after shear of 5.9, 7.5 and 10.0 cSt, respectively.

Performance Requirement

Comments

Units

Method

Limit

Limit

Limit

Viscosity Grade

New Oil

ISO VG

ISO 3448 or ASTM
D 2422

32

46

68

Viscosity Index

New Oil

ISO 2909 or ASTM D 2270

 >160

 >160

 >160

Total Energy Savings*
- Dension T6C

Vane pump

vs. HM fluid, same ISO VG, VI =100

%

EDA Test Procedure HET 7-2011

>3.5

 >5

>3.5

Low Temperature Viscosity

 "L" Grade must be at least one grade lower than the ISO Viscosity Grade

mPa-s (cP)

Brookfield viscosity requirements according to ASTM D 6080

 <750 @ -15° C "L22"

<750 @ - 8° C "L32"

<750 @ -2° C "L46"

Shear Stability

Minimum KV100 after shear in bench tests,predicts operating viscosity in the pump

 mm²/s (cSt)

Kinematic viscosity @100°C (ASTM D 445) after 40 minute Sonic Shear (ASTM D 5621)

 > 5.9

 > 7.5

 > 10.0