Multi-Stage Restriction Orifice Assembly

Flow Measurement Excellence
  • Restriction orifice Assemblies are used for managing pressure drops / control flow rates by restricting flow, irrespective of downstream conditions. 
  • Multi-stage restriction orifice assemblies are ideally used for high pressure drops and/or high noise applications. MSRO’s are designed to prevent cavitation, critical flow, flashing and excessive nose or vibration from occurring.
  • Available in MOC suitable to your process needs ranging from Austenitic steels, Nickel Alloys, PVC, PTFE and Stellate coated.
Available Designs / Customizations
  • Single Bore Orifice Plate
  • Multi-Bore Orifice Plate
  • All RO’s are designed in accordance with ISO 5167 / ASME Standards and R.W.Miller.
  • The Reduced Noise levels are in accordance with B.S. EN60534-8-4.
  • Suitable for high pressure drops for both Gasses and Liquid.
  • Low cost compared to control valves up to 10 times lower and easier to comparatively design and install.
  • No Moving or Electronic parts involved.
Models Suitable for your need
  • MSRO400 W# - Series Multistage Restriction Orifice Assembly
  • Welded
  • MSRO400 M# - Series Multistage Restriction Orifice Assembly
  • Machined

Previous Track Record

  • EPMC: Petrofac, Sharjah
  • Client: Shell Iraq Petroleum Development BV
  • Project: Early Production system and Brownfield facilities Majnoon, Southern Iraq
  • MOC: Incoloy 825.
  • Quantity: 14 Nos
  • Salient Features:
    • - Pressure reduction achieved in 16 stages.
    - High pressure Gas service
    - All weld joints were full penetration butt-welded and 100% radiographed.