Orifice Plate

Flow Instrumentation, Flow Meter

Orifice plates that ensure stable flow measurement at all times have been widely used in many fields. Although the pressure loss increases, they have such merits as low cost, easy installation/ replacement, and high reliability, Orifice plates are classified into the concentric, eccentric, segmental, quadrant, and rectangular types Flange, corners, D-D/2, and vena contract a taps are used to take out the differential pressure


Concentric Orifice Plate
This is the orifice plate that a bore is concentric with the pipe center line and upstream square and sharp. An uncertainty is smaller than other type of orifice plates for a flow rate which has a high. Reynolds number a concentric square edge orifice plate is suitable for the flow measurement of the large diameter pipe.


Eccentric Orifice Plate
This is the orifice plate a bore is internally tangential to the bottom of pipe bore. It is effective for the flow measurement when the fluid being mattered carries a considerable amount of sediment or material in suspension.


Segmental Orifice Plate
The bore of this orifice plate is a segment of a circle of approximately the same Demeter as the internal pipe. It is functions are similar to those of the eccentric orifice plate.


Quarter Circle Orifice Plate
The inlet edge of the bore of this orifice plate is rounded off to the form of a quarter circle. This orifice plate is principally used for measuring flow rates of low Reynolds Numbers.


Spectacle blind, blind and spacer
This is use for pressure interception at the time of pressure test and closedown of the plumbing. Spectacle blind that is united with blind and Spacer.

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