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Fann Instrument Company

Fann Instrument Company designs and manufactures instruments for measuring the physical and chemical properties of fluids, especially the measurement of flow and viscosity.

Our product line is the most comprehensive offering of instruments, accessories, test kits, and portable laboratories for testing drilling fluids, completion fluids, fracturing fluids, oilfield cements, and industrial slurries.  We also provide reagents, supplies, and replacement parts through a worldwide distribution system.

Based in Houston, Texas, Fann Instrument Company has been the leading supplier of quality instruments for oilfield testing and analysis since 1939.  Take a tour of our plant and see other videos at the Fann YouTube Channel.

Our ongoing research and product development program represents an investment in leading edge technology and a commitment to the design of sophisticated instrumentation used for laboratory research and highly efficient portable kits used on remote rig sites and other field locations.

Many of the instruments and test kits are designed to conform to the testing standards of the American Petroleum Institute (API), and are suitable for field and laboratory use. Others are designed to meet the requirements of the American Society for Testing and Materials (ASTM) as well as other technical specification groups.

The complexities of drilling increase as the demand for energy grows.  Fann will continue to develop strategic alliances and partnerships providing our customers the benefits of leading edge technology, efficient service, and the highest quality products.

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