The orifice fitting FioMaster by Pietro Fiorentini is a volumetric measuring system based on the voluntary introduction of a concentrated pressure drop through a stainless steel disc with a calibrated hole.
The design of this device allows the disc to be replaced without interrupting the gas flow.

It can be used with previously filtered gas and is generally installed in the main pipelines of high-pressure transmission systems and medium pressure natural gas distribution networks.


  • 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, manifolds and fittings, differential pressure transmitters
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