Orifice Meter Runs
+/- 0.5 to 0.75% Uncalibrated Uncertainty
Liquids & Gases, Pipe Spools Included
- Honing available
- Supplied with any combination of NDE required
- Meets ISO, AGA, ASME, API requirements
Complete Orifice Meter Runs for Code-Compliant Gas Flow Measurement
PFS’s orifice meter runs are complete, ready-to-install flow measurement assemblies that include a manufacturer-installed orifice flange union, orifice plate, and the required upstream and downstream pipe sections. By providing the full meter run as a fabricated unit, PFS helps ensure the geometry, tolerances, and internal finishes meet applicable standards, supporting dependable differential pressure measurement in pressurized gas and other clean services.
A complete meter run is the best way to ensure conformance to code-specified tolerances and finishes. In smaller line sizes, pipe sections may require honing to achieve the required internal finish. A fully fabricated run, including any required NDE, is often the only practical way to verify compliance and reduce field issues during installation and startup.
Key Benefits & Features:
- Complete, Ready-to-Install Meter Run: Fully assembled with orifice plate, flange union, required pipe sections, alignment features, and standard hardware.
- Standards and Code Compliance: Built to meet or exceed applicable requirements, including AGA Report No. 3, with fabrication practices that support compliance with related ISO, ASME, and API guidance as applicable.
- Confidence in Tolerances and Finish: Controlled tolerances and internal finishes help protect measurement accuracy and reduce risk compared to field-built assemblies.
- Built to Your Specification: Available in a wide range of sizes, materials, and capacity requirements consistent with applicable codes.
- Field-Focused Quality: ISO 9001-certified procedures support repeatable quality and fewer installation headaches.
Orifice Meter Run Specifications
Uncalibrated: +/- 0.50% to 0.75%, beta dependent
Orifice Meter Run Models
Model Types
- OPTR — Orifice, Plate, Threaded, Run ( NO Flange Union ) Welded In-Line
- OPWR — Orifice, Plate, Welded, Run ( NO Flange Union ) Welded In-Line
- OUPFR — Orifice, Union, Plate, Flanged, Run
- OUPWR — Orifice, Union, Plate, Welded, Run
Orifice Meter Run Configuration Options
What’s Included in a Complete Orifice Meter Run:
A PFS orifice meter run is provided as a complete unit and typically includes the primary DP flow element, the required tapping hardware, and the upstream and downstream piping needed to meet applicable meter run requirements. This packaged approach helps reduce field variables that can affect performance and installation quality.
- Orifice Plate: Thin, concentric orifice plate (commonly paddle-type)
- Orifice Flange Union: Orifice flanges with differential pressure sensing taps and mounting hardware
- Adjacent Pipe Sections: Upstream and downstream piping sections with optional flow conditioning and temperature well(s) as required
- Standard Hardware: Gaskets, studs, nuts, bolts, plugs and other required components
Standard Configuration and Fabrication Options:
PFS builds meter runs to match your piping requirements, installation preferences, and project standards, with configurable end connections and optional fabrication steps to support compliance. These options help ensure the assembly arrives jobsite-ready and integrates cleanly into your system.
- End Arrangement: Beveled ends for field welding by default, with threaded, flanged, or mechanical ends available upon request
- Connections: 1/2 inch pipe coupling and plug typically supplied on downstream tube, with additional couplings available
- Alignment Features: Alignment holes and studs provided
- Packout: Crated fully assembled and ready for installation unless otherwise specified
- Working Pressure: Limited by the lowest-rated component in the assembly and governed by applicable ANSI piping and flange standards
Orifice Meter Run Materials
Typical material selections for standard applications:
- 304 stainless steel
- 316 stainless steel
Other options for material selection:
- Monel
- Hastelloy
- Titanium
- Brass
Orifice Meter Run Certifications
PFS is a contributor to various international standards committees, fully supporting our staff’s memberships to these commissions.
Individual products follow relevant industry regulations, including requirements specific to the oil and gas, water/wastewater, and power generation industries.
Consistent with our quality assurance program and ISO 9001 certification of our quality system, a dimensional inspection report is provided as an integral part of our standard documentation. This report confirms that all applicable codes including the AGA concerning dimensional tolerances, surface finish and concentricity, are in full compliance.
PFS maintains the following certifications, standards & compliances:
- ISO 9001
- AGA
- ASME S & U
- API
- ANSI
- European Pressure Equipment Directive (PED)
Applications
Oil & Gas
Orifice meter runs are widely used across oil and gas operations for standardized, code-compliant flow measurement in pressurized piping. Common applications include natural gas transmission and distribution, custody transfer and meter stations, gas processing and compression, and measurement of refined products and other clean hydrocarbon services where repeatable performance and predictable installation requirements are important.
Power Generation & Steam Systems
Orifice meter runs are used in power generation facilities to measure steam and clean gas flows that support boiler and turbine operations. They are commonly applied in plant utility and process piping where repeatable flow data helps improve control, efficiency, and reporting.
Industrial Process & Utility Gas Flow
Across industrial facilities, orifice meter runs are used to measure clean gases and clean liquids in pressurized lines, including plant fuel gas, instrument air, and other utility and process services. They are a practical choice for sites that want a standardized, widely accepted technology delivered as a jobsite-ready assembly.
Industry-Leading Orifice Meter Run Supplier Since 1983
Four Decades of Proven Orifice Metering Expertise
With 40+ years in orifice meter runs, PFS builds code-compliant assemblies with tight tolerances and consistent internal finishes to reduce field variables. In-house machining, fabrication, welding, and NDT/NDE deliver jobsite-ready meter runs built for long service life.
Built to Your Specs, Backed by Practical Support
PFS builds orifice meter runs to your materials, sizes, end connections, and project standards, with options for NDE, accessories, and instrumentation. We also support sizing, application guidance, documentation, and installation readiness to reduce startup issues and help your metering point perform as intended.
Certifications & Compliances
PFS maintains ASME S and U, European Pressure Equipment Directive (PED), and ISO 9001 certifications. Orifice meter runs can also be supplied with Canadian Registration Number (CRN) documentation when required.
