Orifice plates are widely used for flow measurement as they provide the simplest and the most econmical means of flow detection. Orifice plantes 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 edgy type).Orifice plates are also available in the concentric 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.

●Concentric Square Edged Orifice
●Quadrant Edged Orifice
●Eccentric Orifice
●Segmental Orifice

●ISO 5167
●AGA report #3
●ASME MFC-3M (R.W Miller)
● L.K. Spink
●JIS Z 8762

●JIS 10, 16, 20, 30, 40, 63
●ANSI Class 150, 300, 600, and 900, 1500, 2500

●Flange taps
●Corner taps
●Vena contract taps
●1D and 1/2D (Radius) taps
●Pipe taps

3, 6, 9, 12mm

Welded to orifice plate

●Standard : 304SS, 316LSS
●Non-standard : Monel, Hastelley B/C, Titanium etc.

●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 marking may be furnished to meet special requirement