Orifice fitting by Pietro Fiorentini, FioMinor is a volumetric measuring system based on the voluntary introduction of a concentrated pressure drop through a stainless steel disc provided with a calibrated hole. This device allows an easy replacement of the disc after interrupting the gas flow in the pipe section where it is installed.

Typically installed in the main piping of high-pressure transmission systems and medium pressure natural gas distribution networks, it can be used with previously filtered gas.


  • Connections: ANSI 150/300/600/900
  • Type of connections: flanged/flanged, flanged/butt-welded, to be butt-welded
  • Available diameters: 2”, 3”, 4”, 6”, 8”, 10”, 12”, 14”, 16”, 18”, 20”, 24”, 28”, 30”, 32”, 36”
  • Accessories: barrels, disc extraction system, manifolds and fittings, differential pressure transmitters
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