CLASSIC
ORIFICE PLATE
The main type of calibrated orifice plate. Used in most unidirectional flow measurements of Liquids, Gases, and Steam. It has a calibrated bore with a sharp edge at the inlet and a 45° bevel at the outlet.
BIDIRECTIONAL
ORIFICE PLATE
Used in bidirectional flow measurements.
It has a calibrated bore with a sharp edge at both the inlet and the outlet.
CONICAL
ORIFICE PLATE
Suitable for applications on liquids with low Reynolds numbers, due to the high viscosity of the fluid and/or the low flow rate to be measured.
It has a concentric calibrated bore with a 45° bevel at the inlet. It is generally preferred over quarter-circle orifice plates on small diameter piping, where possible, as it has a simpler geometry and therefore fewer critical issues in machining the calibrated bore.
ECCENTRIC ORIFICE PLATE
Designed to be used for measuring liquids with suspended solids, liquids with dissolved gases, or gases with entrained liquids.
It has a circular calibrated bore decentered relative to the piping axis, whose position depends on the type of fluid to be measured.
SEGMENTAL ORIFICE PLATE
Used as a replacement for eccentric orifice plates where the concentration of solids or suspended air is high, given the greater discharge capacity.
QUARTER-CIRCLE ORIFICE PLATE
Used for very viscous fluids, on small diameter piping (> 25 mm), and on fluids with low Reynolds numbers.
It has a concentric calibrated bore with a concave radius inlet.
