Fann manufactures a variety of instruments to test the viscosity of a drilling fluid or mud. Ranging from the simple Marsh Funnel to to rotational viscometers like the industry standard Model 35 Viscometer to the high pressure, high temperature iX77 Rheometer, the Fann line includes an instrument for any drillilng fluid testing need, in the field or in the lab.
The Model 45 APV (Automatic Programmable Viscometer) allows for customized, preprogrammed test schedules with touch screen controls digital measurement technology.
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