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Orifice Plates

Flow Measurement Excellence

The Orifice plate is the most commonly used differential pressure device offering economical, simple and sufficient accuracy for many applications within the industry. Calibration and Dimensional Certificates are available for square edge orifice plates for use in Fiscal and Allocation metering, if required.

Available Designs Include

Square Edge Orifice Plates

- Process Flow Measurement of hydrocarbons, most gases and liquids
- Allocation flow metering
- Custody Transfer and fiscal flow metering

Conical Entrance & Quarter Circle
- Flow measurement of viscous fluids
- Applications with low Reynolds numbers

Eccentric Plates
- Flow Measurement of dirty and contaminated fluids
- Flow metering of fluids with suspended solids or entrained gas

Solartron ISA is able to offer the most suitable flow measurement solution for each application, using proven flow metering technology with Differential Pressure measurement covered in ISO 5167-2, ISO TR-15377, AGA3 and ASME MFC-3M. These devices are low maintenance with no moving parts, and considered an economical cost effective flow measurement solution for many gas, liquid and steam applications.

  • Specifications +

    • Hydrocarbon Gas & Liquids
    • Process Measurement

    • Fiscal Measurement

    Key Parameters
    • Proven Technology
    • Flow Measurement in Circular Pipes
    • No moving parts

    Functional Specifications
    Line Size DN15 (1/2") to DN1200 (48")
    Types of Plate Square Edge | Conical Entrance | Quarter Circle | Eccentric
    Beta Ratio 0.15 to 0.80 (Plate type dependent)
    Reynolds Number From 80 to an unlimited maximum (Dependent on design of plate)
    Accuracy (Flow Rate) ±1% with a calibrated spool, Typically ± 2 to 3%
    Flow Turndown Typically >10:1, depending on Transmitter configuration

    Physical Specifications
    Plate / Carrier Material
    304ss / 316ss / 321ss / UNS S31803
    UNS S32760 / UNS S31254
    Alloy 400 / 625 / 825 / C276
    Tantalum / Titanium
    Others available on request

    Installation Method (Between)
    Flanges (API / ASME)
    Welded directly into piping

  • Downloads +

  • Guidelines +

  • DP Flow Questionnaire +