NDJ-1 Rotational Viscometer is a novel instrument to be used in measuring the viscous resistance the absolute viscosity of fluid.

However, For pipes with local resistance loss, the friction head loss caused by the viscosity of fluid does exist, which may lead to the calculation error.

Similarly, for the twin-screw pump, the fluid viscosity smaller than the viscosity of the liquid leakage is smaller, leakage volume and viscosity of a certain percentage of media relations.