Positive Displacement Flowmeters, Hoffer Oval Gear Series

Positive Displacement Flowmeters, Hoffer Oval Gear Series

The unique design of Hoffer’s Oval Gear meter incorporates two SMOOTH (toothless) oval gears 90 degrees out of phase. The measurement gears are held together by two timing gears. The timing gears have a pitch diameter equal to the outside diameter of the measurement gears. The flow through the meter measurement chamber follows the path of least resistance. Therefore no liquid passes through the center cavity between the measurement gears.

OUTSTANDING FEATURES

  • Patented Toothless Oval Gear Construction. U.S. Patent 5,992,230
  • High Accuracy.
  • Compact Design.
  • High Resolution Electronic Output.
  • Stainless Steel Ball Bearing, Self Lubricating.
  • 316 Stainless Steel with Brass Thrust Plate Construction (Standard).
  • No Special Gears Needed for High Viscosity.
  • Linearity Unaffected by Viscosity Changes.
  • 1″ MNPT End Fitting (Standard). Variety of End Connections Available.

SPECIFICATIONS

  • Linearity: ±.25% of reading or better above 100 CSTKS from 5 to 20 GPM.±.5% over the extended range.
  • Repeatability: ± 0.05%.
  • Flow Range: .02 to 25 GPM.
  • Operating Temperature: -20° to +375°F based on O-ring material (Viton). See pickup coil section of ordering information for temperature ratings.
  • Operating Pressure: Up to 3000 psig standard.

FLOWMETERS BY SERVICE []

  • 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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EXHIBITIONS & CONFERENCES

View Hoffer Flow Controls attendance schedule for events, forums and exhibitions through 2018

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