Flow meters, controllers, and chart recorders


ABB Wedge Flowmeter ABB Wedge Flowmeter

Differential Pressure - Primary Flow Element

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. Matched with ABB Differential Pressure Transmitters, this flow meter provides a solution for most harsh applications.

Measures Liquids, Gas and Steam
High Accuracy ±0.5% of rate
Bi-directional flow
Low Reynolds number measurement (as low as Rd 500)
Minimum upstream and downstream piping requirements
Standard sizes 0.5" to 24"

ABB Wedge Flowmeter ABB Compact wedge meter

FPD570 WedgeMaster, Compact wedge meter

WedgeMaster compact wedge flow meters, offer a focus on providing solution-solving flowmeter systems, coupled to the latest in ABB transmitter technology. Having no moving parts and no tendency to wear or foul, WedgeMaster devices are the logical choice when there are concerns over meter performance and longevity. In addition it performs at very low Reynolds Numbers and with short upstream straight pipe lengths.

  • One-stop source for the complete Wedge meter package
    – Purchase all the components from one supplier using a single ordering code, saving cost in procurement and order-progressing activities.
  • Reduced cost & space for process piping
    – Requires as little as 5D upstream and 2D downstream of straight pipe, saving on expensive provision of pipework and space.
  • Excellent turndown & long term stability
    – no critical surface dimensions to wear; durable design and construction
    – maintains flow characteristics down to Re 500, offering wide flow turndown, even with more-viscous fluids.
  • Easy, Low Cost, Accurate Installation
    – Reduces installation cost by up to 50% compared to a traditional DP system.
    – Assembly, Leak Testing and Basic Configuration has already been done before shipment


ABB Wedge Flowmeter ABB Wedgemaster

Wedge elements

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

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