New Products - FANN®


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. 

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  • Rheometer Model 280 Hand-Powered
    Requires very little field maintenance, and is the lightest field instrument available for determining plastic viscosity and yield point
  • iX77™ Rheometer
    A coaxial cylinder type Rheometer designed to measure fluid rheologies under high pressures and temperatures with a high degree of safety.
  • Chiller Model D4004
    Provides controlled sample cooling for a iX77 Rheometer
  • Cold Water Rheology Kit
    Provides controlled sample cooling for a Model 35 Viscometer
  • DNA System
    The Fann DNA system is proprietary software and hardware used to connect multiple Fann Instrument Company products to a computer.
  • Marsh Funnel Viscometer
    A simple device for indicating viscosity on a routine basis
  • Model 45 APV
    The Model 45 APV (Automatic Programmable Viscometer) allows for customized, preprogrammed test schedules with touch screen controls digital measurement technology.
  • RheoVADR Rheometer
    The RheoVADR Variable Automated Digital Rheometer allows recording test data without connecting to a computer or network.
  • Rheometer Model 50SL High Temperature
    Designed for testing fluids at temperatures to 500°F (260°C) and pressures to 1,000 psig (7,000 kPa) in a coaxial cylinder chamber
  • Viscometer - Model 35
    The Fann Model 35 Viscometer is the standard of the industry
  • Viscometer - Model 35 Accessories
    Accessories for the Model 35 Viscometer


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