Vortex Flow Meters- Badger Meter
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The document provides an overview of Badger Meter's vortex flow meters, detailing their product lines which include stainless steel and thermoplastic meters for liquids and gases. It highlights the unique ultrasonic and vortex-shedding technologies employed, along with advantages such as high sensitivity and low pressure drop. Specific product specifications, applications, and features are also outlined, catering primarily to industrial gas measurement and other sectors such as semiconductors and pharmaceuticals.
Vortex Flow Meters- Badger Meter
- 1. 1 Vortex Flow Meters- Badger Meter
- 2. Product Line Overview • Vortex-shedding technology • Comprised of two main product lines: • Stainless steel meters, liquids, gases • Unique combination of ultrasonic + vortex technologies • Thermoplastic meters; for liquids only • Traditional piezoelectric vortex-shedding technology • New ultrasonic version; RFI plans to complete the R&D in 2012 2
- 3. Product Line Overview Stainless steel meters Available in three designs: • Wafer (mounts between flanges) • ½” to 4” sizes RWG/RWBG (gas) • 1” to 3” sizes RWL (liquid) • Flanged (“spool piece” design): 150 or 300-pound ANSI • Available for gas and steam • Insertion (mounts through side of pipe) • 4” to 36”/60”/48” RNL, RNG, (liquid, gas) 3
- 4. Primary Markets Industrial Gas Measurement Natural Gas/ Biogas Semiconductor
- 5. Vortex Shedding Technology - Ultrasonic • The principle operates by looking at pressure fluctuations, the meter uses ultrasonic technology: • The meter transmits an ultrasonic beam through this vortex pattern. As vortices are shed, the carrier wave of the ultrasonic signal is modified. The change in the carrier wave occurs in proportion to the number of vortices shed. • The vortices are counted, and this value is converted into fluid velocity. • This technology is used by the Racine Vortex stainless steel meters. 5
- 6. Vortex SS meter advantages • Ultrasonic component is unique in industry • Smallest strut (“bluff bar”) in industry – High sensitivity – High turndown ratios (70:1 – insertion gas meter) – Very low pressure drop: near zero • No moving parts • For the most part, Vortex gas flow meters do not have a minimum pressure requirement. Racine Vortex and Rosemount 1.5” wafer meters 6
- 7. Product Line Overview - Wafer RWG • Wafer style vortex-shedding flow meter • Average turndown ratio 40:1 • Maximum pressure 250 psig (17 bar) • Maximum temperature 300 °F (150 °C) • Sizes: ½”, 1”, 1-1/2”, 2”, 3”, 4” RWBG • Optimized for “biogas” applications: (CH4 + CO2) • Less sensitive to moisture content in gas 7
- 8. Product Line Overview - Flanged RWG option • Flange spool piece • 316 stainless steel construction • 150 or 300-pound ANSI RF flanges • Can be fabricated to customer-defined length • Ported (1/4” NPT) for pressure sensor • Custom configurations possible 8
- 9. Product Line Overview - Insertion RNG Insertion Meter • 70:1 turndown ratio • Pipe sizes from 4” to 60” • Mounts via 2” NPT, 2” ANSI or DN50 flange Options: • Hot tap kit w/ ball valve: insert or remove without process shut down • Teflon-coated wetted components • Hastelloy-C wetted components 9
- 10. Vortex meters specifications Racine Vortex and Rosemount 1.5” wafer meters 10
- 11. RWG / RNG Gas Meters: common features • Gas meters are calibrated on an advanced air flow test stand; sonic nozzles (master meters) are calibrated at outside laboratory • HART Communications protocol • ±1% of reading accuracy • 2 FPS, 0.6m/s minimum velocity • Loop-powered: 24 VDC input power, 4-20 mA output • HART utility PC software application for field configuration 11
- 12. RWG and RNG Gas Meters: common options • Digital display of primary variable • O-ring materials to meet material compatibility requirements • Remote-mount electronics option • ATEX hazardous area certification ATEX Ex II 2G ib IIB T4 • Temperature compensation of flow rate, via internal RTD This option also includes the ability to accept the 4-20 mA signal from an external pressure sensor, for a fully compensated, true mass flow reading 12
- 13. Product Line Overview - Wafer RWL • Wafer style vortex-shedding flow meter • Average turndown ratio 10:1 • Maximum dependent on pressure 300 psig (20 bar) • Maximum temperature 300 °F (150 °C) • Sizes: 1”, 1-1/2”, 2”, 3” 13
- 14. Product Line Overview - Insertion RNL Insertion Meter • 10:1 turndown ratio • Temperature max 148 °C • Stem length 12” to 36” • Mounts via 2” NPT, 2” ANSI or DN50 flange • Optional display version Options: • Hot tap kit w/ ball valve: insert or remove without process shut down 14
- 15. Vortex meters specifications Racine Vortex and Rosemount 1.5” wafer meters 15
- 16. Vortex meters specifications Racine Vortex and Rosemount 1.5” wafer meters 16
- 17. RVL Series Thermoplastic Vortex Flow Meters
- 18. RVL Series Liquid Vortex • All-plastic wetted parts (Teflon, PVC, CPVC, PVDF, Polypropylene) • ± 1% of full scale • 12:1 turndown • 13-30 VDC input power, 3-wire device • 4-20 mA , 0-5V or pulse output • Wafer, Flare, Butt, NPT
- 19. RVL Series Low Viscosity Fluid Measurement • Ultra-pure water • Acids • Aggressive Chemicals Markets • Semicon • Pharmaceutical • Chemical Processing • Industrial • Replaces paddle wheels and other mechanical technologies
- 20. RVL Operating Principle • The initial bluff bar creates the vortex. • Vortices form alternately, from one side to the other causing pressure fluctuations. • These are sensed by a piezoelectric crystal in the second bluff bar. • The output from the meter can be either a pulse signal or analog.
- 21. Viscosity and Flow Range Weight Minimum Maximum Flow Range 1 CST 1 12 12:1 2 CST 2 12 6:1 3 CST 3 12 4:1 4 CST 4 12 3:1 5 CST 5 12 2.4:1 6 CST 6 12 2:1 Viscosities above 1 cSt will raise the minimum usable flow rate – Reducing the meter’s effective range
- 22. Maximum Fluid Operating Pressure Temperature PSIG (Kpa) ⁰F. ⁰C. PVC CPVC PVDF 203 95 NR CF CF 150 66 NR 63 (434) 130 (896) 100 38 93 (641) 120 (627) 150 (1034) 70 21 150 (1034) 150 (1034) 150 (1034)
- 23. RVL Series Liquid Flow Meter Class 1000 Clean room construction option: – No more than 1000 0.5 micron particles per cubic foot of air. Requirement for Semicon, Biotech and Medical applications.
- 24. Vortex - Material Selection Select the meter body material that is compatible for the fluid, ensure that the fluid does not contain considerable amounts of fibers or abrasive materials that will cause erosion or affect vortex formation.
- 25. Thank you +44 (0)1280 817304 [email protected] www.badgermeter.co.uk Bell Flow Systems are the UK representative of Badger Meter 25
Editor's Notes
- #4: In the model numbers, we designate wafers with a “w”, and insertion meters with an “n”. Gas insertion to 60” (in fact we’ve done a 72” meter); and steam insertion meters to 48” In the next several slides we’ll focus mainly on gas and liquid stainless steel meters, and we’ll return to steam and thermoplastic meters later this afternoon.
- #5: The Vortex product line mix brings together a number of discrete market opportunities, ranging from semiconductor capital equipment, to boiler, to methane gas in a landfill. We will try to touch on all of these, despite the fact that many of you come in with a particular focus.
- #6: So we can see, one of the key benefits with ultrasonic is that you don’t need to generate pressure fluctuations, therefore you don’t need a large strut.
- #7: To our knowledge there are no major manufacturers utilizing an ultrasonic component in their vortex meters. Exception is Hontzsch (Germany). Racine Vortex meters do have a minimum velocity requirement, but not a minimum pressure requirement. Bluff bar comparison – the “other” meter is an actual trace of a Rosemount standard vortex meter.
- #8: The RWBG incorporates a different transducer material and design that is more effective in moist conditions. Submersion or a complete coating of the transducers will impair the meter performance however.
- #9: Custom lengths and configurations: you will see on our test stand that we’re using adjustable-length connectors to mount the wafers, which allows for full calibration over a large spool piece range. Because of our work with Preso, our engineering team is highly adept at customizing spool pieces for unique customer requirements
- #10: A compression fitting is utilized to keep the meter from rotating or sliding out of the optimal installed position The Teflon coating is an added protection against aggressive gas mixtures, such as those containing acids. However physical damage to the coating will render the protection ineffective – the best protection will be to use Hastelloy C
- #12: Master meters calibrated at CEESI (Colorado)
- #14: The RWBG incorporates a different transducer material and design that is more effective in moist conditions. Submersion or a complete coating of the transducers will impair the meter performance however.
- #15: A compression fitting is utilized to keep the meter from rotating or sliding out of the optimal installed position The Teflon coating is an added protection against aggressive gas mixtures, such as those containing acids. However physical damage to the coating will render the protection ineffective – the best protection will be to use Hastelloy C