Measuring Viscous Fluids with the Wedgemeter

ABB's FPD470 Wedgemeter series measures gas, liquids, and steam. They contain a solid V-shaped flow restriction which makes them highly robust. The FPD470 wedge meters are bi-directional and mainly suitable for abrasive and/or viscous slurries/fluids.

Wedge Meter Flow Element - FPD470P

ABB’s FPD470P is a wedge meter possessing threaded DP connections for connection to conventional transmitters. The flow element contains a body and wedge flow restriction. This restriction causes a differential pressure corresponding to the square of the volumetric flow rate.

The FPD470P wedge restriction contains no critical surface dimensions, or sharp edges, that will influence measurement accuracy as the result of typically expected wear.

Data

  • Bi-directional flow
  • Standard sizes 1 to 24 inch
  • Measures gas, liquids and steam
  • Low Reynolds number measurement (as low as Rd 500)
  • High accuracy ±0.5 % of rate
  • Minimum upstream and downstream piping requirements

Wedge Meter Flow Element - FPD470F

ABB’s FPD470F is a wedge meter comprising DP connections for flanged remote seals. The flow element is provided with a body and wedge flow restriction. This restriction creates a differential pressure corresponding to the square of the volumetric flow rate.

The FPD470F wedge restriction does not have any critical surface dimensions, or sharp edges, that will impact measurement accuracy as the result of normally expected wear.

Data

  • High accuracy ±0.5 % of rate
  • Measures gas, liquids, and steam
  • Standard sizes 1.5 to 24 inch
  • Bi-directional flow
  • Low Reynolds number measurement (as low as Rd 500)
  • Minimum upstream and downstream piping requirements

Wedge Meter Flow Element - FPD470C

The FPD470C wedge meters from ABB comprise DP connections for Chemical Tee remote seals. The flow element is designed with a body and wedge flow restriction. This restriction forms a differential pressure corresponding to the square of the volumetric flow rate.

The FPD470C wedge restriction consists of no critical surface dimensions, or sharp edges, that will influence measurement accuracy as the result of typically expected wear.

Data

  • Bi-directional flow
  • Measures gas, liquids, and steam
  • High accuracy ±0.5 % of rate
  • Minimum upstream and downstream piping requirements
  • Low Reynolds number measurement (as low as Rd 500)
  • Standard sizes 0.5 to 24 inch

Measuring Viscous Fluids with the Wedgemeter

Wedge Meter Flow Element - FPD470P
Wedge Meter Flow Element - FPD470F
Wedge Meter Flow Element - FPD470C

Other Equipment