Orifice meter run assembly with corner taps and annular chambers

  • Completely pre-assembled with orifice plate, piping, inlet/outlet sections, process connections
  • Size: DN15…100 / ½…4"; up to PN100 / ASME Cl 1500
  • Temperature: max. +400°C / +752°F
  • Material: 1.4404 / 316L



The OPTIBAR MR 4300 is an orifice meter assembly. It is ideally suitable for use in small line sizes (<DN50 / 2″) where the impact of certain parameters such as flow profile, surface property or roughness of the pipe wall is particularly strong. The meter run assembly can also be water-calibrated for increased accuracy.

It comes completely pre-assembled and ready for installation, with orifice plate, annular chambers, process connections as well as inlet and outlet sections for low-disturbance flow. The DP flow element is available with the OPTIBAR DP 7060 DP pressure transmitter as well as with manifolds, valves, condensate pots or other accessories.

Product highlights

  • Compact or separate design
  • Upstream and downstream sections acc. to DIN 19214
  • Reduces flow disturbances
  • Minimum measurement uncertainties: ±0.3…0.4% (calibrated)
  • Optional water-calibrated version for increased accuracy (±0.3%)

Typical applications

  • For differential pressure flow measurement with OPTIBAR DP 7060 transmitter
  • Liquid, gas and steam applications in small line sizes
  • DP flow applications with increased accuracy requirements


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with orifice meter run assembly

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  • Up to +400°C / +752°F; max. 160 bar / 2320.1 psi; (line pressure)
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View product details