Orifice plate Model : F100


Orifice plates are widely used for flow measurement as they provide the simplest and the most economical means of flow detection. Orifice plates are available in the concentric type that the round opening (Bore) of the orifice plate is positioned concentrically with the center of the pipe and the opening edge (Bore edge) is available either in the concentric square edge type (Sharp, square edge type) or in the quadrant edge type (Round edge type). Orifice plates are also available in the eccentric type that the opening of the orifice is shifted from the center of the pipe. They also are available in the segmental type that the opening is a circular segment and the orifice is comparable to a partially opened gate valve.


Orifice bore type

  • Concentric square edged orifice
  • Quadrant edged orifice
  • Eccentric orifice
  • Segmental orifice

Flow calculation standards

  • ISO 5167-1 and 2 2003
  • AGA-3
  • ASME MFC-3M and 14M
  • JIS Z 8762
  • BS 1042

Flange ratings

  • JIS 10, 16, 20, 30, 40, and 63K
  • ANSI class 150, 300, 600, 900, 1,500 and 2,500 Lb

Pressure taps

  • Flange taps
  • Corner taps
  • Vena contract taps
  • 1D and ½D (Radius) taps
  • Pipe taps (2½D and 8D)

Plate thicknesses

3, 6, 9 and 12 mm


Tab handle

Welded to orifice plate


Plate material

  • Standard : 304SS and 316L SS
  • Non-standard : Monel, Hastelloy C, Titanium and etc.

Drain and vent hole

  • Per ASME recommendations
  • Not drilled for orifice bores smaller than 25.4mm


Upstream side of tab handle stamped "Upstream" and with bore type and size, line size, tag number and flange rating


Special markings

Special marking may be furnished to meet special requirement

Orifice plate Model : F100