orifice plate


Also found in: Acronyms, Wikipedia.

orifice plate

[′ȯr·ə·fəs ‚plāt]
(design engineering)
A disk, with a hole, placed in a pipeline to measure flow.
References in periodicals archive ?
The first commercial orifice plate flowmeter appeared in 1909 and was used to measure steam flow.
As the differential pressure type flow meter, such as Venturi and orifice plate, becomes more applicable in the accurate flow metering applications, the understanding on its performance in various installation configurations is becoming critical in order to ensure the overall measurement accuracy requirement is met.
This report provides orifice plate and meter tube/fitting specifications, tolerance and installation requirements that are needed to meet AGA-3/API 14.3 Part 1 metering uncertainties.
Other types of meter, such as vortex and orifice plate, feature sharp internal edges that wear much more quickly in steam flows, impairing their accuracy and requiring frequent recalibration.
As differential pressure flow meters have a primary and a secondary element, the primary can be an orifice plate, Venturi, wedge-type, or flow nozzle.
According to the piping schematics, the 1-inch recirculation lines had a stainless orifice plate between flanges with an orifice diameter of 0.135 inch.
The product features precision-machined orifice plate primary devices with flanged unions, manifold and transmitter, designed for applications in accordance with ASME B16.36.
The effect of gas chamber volume (Vc) below the orifice plate on bubble formation was also studied (Kupferberg and Jamson, 1969; Park et al., 1977; Tsuge and Hibino, 1983; Terasaka and Tsuge, 1990).
Trident has the printhead and fluid expertise, as well as the advantage of an inert stainless steel printhead with removable orifice plate for cleaning, repair and flexibility of design.
It resembles a conventional orifice plate but has multiple slots instead of a single concentric hole.
Various orifice plate options for controlling particle size and the ability for integration with other processing equipment means the Rietz Extructor is suited to a range of batch processing operations.
The second approach is the installation of an orifice plate meter.