Tek-DP 1670A Wedges are differential pressure producing devices that are suitable for flow measurement for nearly all fluids and gases, especially for highly viscous, particle-laden and abrasive process applications. They offer excellent performance for the fluids having Reynolds no as low as 500 and work equally well for the fluids having Reynolds no up to several million.

Wedges stand out from the other primary flow elements due to their distinct construction. They allow bi-directional flow measurement as required in some applications.


  • Compact and robust design with no moving parts
  • Bidirectional flow possible
  • No clogging risk, self-cleaning
  • Accurate flow metering for highly viscous fluids, slurries and suspended solids
  • Minimal permanent pressure loss resulting in energy savings
  • Accuracy ≤ ± 0.5 % of the actual flow rate (Calibrated)
  • Repeatability 0.2 %
  • Available for all pipe sizes and in a wide range of materials