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The flow element consists of a body and wedge flow restriction. This restriction creates a differential pressure in proportion to the square of the volumetric flow rate.

The wedge restriction has no critical surface dimensions, or sharp edges, that will affect measurement accuracy as the result of normally expected wear.

Advantages
  • Bi-directional flow.
  • High accuracy ±0.5 % of actual flow rate.
  • Low reynolds number measurement, Rd500.
  • Minimum upstream and downstream pipe measurement.

Specifications

Accuracy - Bi-Directional

  • Same as Above when Kd² Designated as Reverse Flow Coefficient

Accuracy - Calibrated

  • 1” or Larger: ± 0.5 % of Actual Flow when Operated within the Calibrated Range
  • 0.5”: ± 0.75 % of Actual Flow when Operated within the Calibrated Range

Accuracy - Uncalibrated

  • ± 5 % of Actual Flow when Using Nominal Kd²from Sizing Program. Applies to Bi-Directional Flow

Material

  • 304/316/316L Stainless Steel & Carbon Steel
  • Special Materials are available

Measuring Fluid

  • Liquid, Gas & Steam

Pipe Size

  • 0.5” ~ 24”

Rangeability

  • 10:1

Repeatability

  • ± 0.2 %

Wedge Element Standard H/D Ratios

  • 0.2, 0.3, 0.4, 0.5, 0.6 & 0.7
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