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Viscosity Measurement

AxFlow are experts in the UK for pumping solutions in high viscosity applications.

AxFlow UK's rheometer equipment is a precise torque meter which is driven at discrete rotational speeds. The torque measuring system, which consists of a calibrated beryllium-copper spring connecting the drive mechanism to a rotating cone, senses the resistance to rotation caused by the presence of sample fluid between the cone and a stationary flat plate.

The resistance to the rotation of the cone produces a torque that is proportional to the shear stress in the fluid. This reading is easily converted to absolute centipoise units (mPa·s) from pre-calculated range charts. Alternatively, viscosity can be calculated from the known geometric constants of the cone, the rate of rotation, and the stress related torque.


Using this equipment AxFlow can measure the viscosity of a liquid and produce a plot of a fluid's viscosity against various shear rates, shear stress and temperatures. This information can be absolutely critical when selecting the correct pump for many food related applications.

Pump Service Team
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