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Restriction Orifice Plates

Restriction Orifice Plates

For Topside Flow Measurement

Restriction Orifice Plates are widely used for many applications within the industry. Although the design is very similar to an orifice plate, the function is different. Restriction plates are used to suit a number of different purposes including:

  • Reduction of in line pressure
  • Control flow rates by restricting flow, regardless of downstream conditions
Design Considerations
  • Prevent critical flow
  • Removal of cavitation
  • Reduce noise levels

Solartron ISA provides complete Engineering support from initial restriction design and sizing concepts to manufactured final products. We offer a number of different restriction designs to suit the needs of your application including:

  • Restriction Plates (Standard applications)
  • Multi-Hole Restriction Plates (Used to reduce noise)
  • Multi-Stage Restriction Units (Flanged / Butt-Weld):
Gas Applications – To prevent critical flow
Liquid Applications – To reduce cavitation

  • Proven design technology
  • Products designed in accordance with R.W.Miller - Flow Engineering Handbook
  • Plate thickness calculations designed in accordance with ASME B31.3
  • Designs available to accommodate site restrictions and noise limitations
  • Prevent critical flow or cavitation issues

  • Specifications +

    • Hydrocarbon Gas & Liquids
    • Controlled Pressure Reduction
    • Blow-Down Service
    • Pressure Vessels
    • Noise Reduction

    Key Parameters
    • Proven Technology
    • Prevent Critical Flow or Cavitation Issues
    • Reduce Site Restrictions and Noise Levels

    Functional Specifications
    Line Size DN15 (1/2") to DN1800 (72")

    Restriction Plate
    Full-Face Restriction Plate
    Restriction Carrier
    Multi-Hole Restriction Plate
    Multi-Stage Restriction Unit

    Reynolds Number
    Unlimited range

    Physical Specifications
    Plate / Carrier Material
    Stainless Steel / Duplex / Super Duplex / 6 Mo / Alloy 400 /
    Inconel 625 / Inconel 825 / Hastelloy C276 / Titanium
    Others available on request

    Installation Method (Between)
    Flanged (API / ASME)
    Welded Directly into Piping
    Multi-Stage Units Supplied Flanged or Butt-Weld

  • Downloads +

  • Guidelines +

    Flowstream Restriction Orifice Plates
  • DP Flow Questionnaire +