Flowmeter FAQ’s

How is a Hoffer flow meter calibrated?

Flowmeters, Flowmeter Calibration

With the exception of the STAR and LO-CO Series turbine flowmeters, all other Hoffer inline liquid turbine flowmeters are wet-calibrated and such calibrations are traceable to NIST. A permanent record of all new-build and repaired Hoffer turbine flowmeter calibrations are maintained by Hoffer in accordance with our ISO 9001 quality assurance system. The standard calibration, included in the base price of all wet-calibrated meters, is a 10-point, 1 centistoke calibration conducted over the specified range of flow rates with the first and last points repeated.

A variety of additional options are available and include calibration at viscosities other than 1 centistoke, calibration over more than 10-points, loop calibrations and multiple viscosity calibrations typically used for UVC applications. Third-party calibration services are also available for projects requiring that the Hoffer turbine flowmeters be calibrated by an independent calibration laboratory.

What is Proving

Proving is a check of a flow meter’s calibration conducted at the point of installation. Consult applicable Hoffer technical manuals and technical notes for detailed instructions on methods for proving meter calibrations.

Flowmeters, Flowmeter Calibration

About Hoffer Flow Controls Turbine Flowmeters

 
For over forty-five years Hoffer Flow Controls has been designing and manufacturing quality turbine flowmeters and related process instrumentation. Hoffer Flow Controls specializes in cryogenic flowmeters, magnetic flowmeters, ultrasonic flowmeters and electronic flowmeters. We have expanded our product line to include but not limited to; Aerospace flowmeters, Oil and gas flowmeters, Industrial custody transfer flowmeters, Gas and liquid flowmeters (Power generation), WFI water flowmeters, Sanitary flowmeters, Military grade flowmeters and Subsea flowmeters.

Hoffer Flow Controls is committed to the quality system established by ISO 9001 that ensures our ultimate success by continually satisfying customer needs, improving performance, and making us competitive in the world market.


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  • Liquid Applications

    We provide best solutions that will meet the extreme conditions
    associated with your subsea and oil and gas applications.

    We provide best solutions that will meet the extreme conditions associated with your subsea and oil and gas applications.

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  • Gas Applications

    We offer complete flow measurement packages for the offshore drilling, production and well-servicing environments.

    We offer complete flow measurement packages for the offshore drilling, production and well-servicing environments.

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