orifice meter run

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Orifice Meter Run

What is an Orifice Meter Run

Orifice meter run device is widely used in the development and production for measuring the flow rate of gas and liquid. A whole set of orifice meter run device is composed of upstream tube UL1 and UL2, flow conditioner, dual chamber or single chamber orifice fitting, downstream tube DL and skid frame. When liquid or gas medium flows through upstream tube, it is adjusted by the flow conditioner to reduce turbulence, so as to make the flow smooth and orderly. When the flow reaches the orifice plate, it forms local contraction, so the flow rate increases and the static pressure decreases, then the pressure difference in front of and behind the orifice plate is generated. The greater the flow rate of the medium is, the greater the pressure difference. The flow rate is determined by measuring this pressure difference.


  • Orifice plate can be replaced under pressure for dual chamber orifice fitting, no need to interrupt operation, avoid downtime, save time and cost
  • Change the orifice plate with different bore diameters according to flow rate, more accurate measurement
  • Suitable for the measurement of natural gas, steam, liquid, etc.
  • No need to set additional pipeline, simple structure, stable performance, long service life
  • Flexible and easy to operate, reliable seal, safe and economical

WHM meter runs meet the requirements of the following codes and standards

  • AGA Report No. 3 Part 2 / API MPMS 14.3.2 Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids — Concentric, Square-edged Orifice Meters Part 2: Specification and Installation Requirements
  • GB/T 2624.2-2006 / ISO 5167-2:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 2: Orifice plates
  • GB/T 21446-2008 Measurement of natural gas flow by means of standard orifice meter
  • JB/T 7252-2018 Valve orifice throttling device
  • API Spec 5L Line Pipe
  • API Spec 6D Specification for Pipeline and Piping Valves
  • ASME B16.5 Pipe Flanges and Flanged Fittings NPS ½ through NPS 24 Metric/Inch Standard
  • ASME B16.34 Valves — Flanged, Threaded, and Welding End
  • ASME IX Qualification Standard for Welding, Brazing, and Fusing Procedures; Welders; Brazers; and Welding, Brazing, and Fusing Operators
  • ANSI /AWS D1.1/D1.1M Structural Welding Code-Steel

Product Message

Wan hui machinery

If you need special castings, forgings and deep processing services, please provide us drawings, samples and detailed requirement. For assistance, please contact us through E-mail info@whmcn.com or call us at +86-21-6892 4569.

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