Orifice meter run 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 run. 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


Related products

Integral orifice meter run assembly

DP flowmeter for process applications with small line sizes (down to DN15 / ½")

  • Standardised calibrated meter run assembly, designed acc. to ISO 5167 or ISO TR 15377
  • Up to +400°C / +752°F; max. 160 bar / 2320 psi (line pressure)
  • Flange: DN15…100 / ½...4"
  • 2-wire, 4…20 mA/HART®, FF, Profibus-PA

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Differential pressure transmitter for flow, level, differential pressure, density and interface measurements

  • High performance DP transmitter with integrated line pressure measurement
  • Measuring range: 30 mbar…16bar / 0.44…232 psi; Line pressure: up to 400 bar / 5800 psi
  • Reference accuracy of ±0.065%
  • 2-wire, 4…20 mA/HART®, FF, Profibus-PA, Bluetooth®

View product details