Endress+Hauser Flow Meters: Complete Buyer’s Guide

Buying GuideAlo Tech Solutions

When it comes to industrial flow measurement, Endress+Hauser flow meters are the global benchmark for accuracy, reliability, and longevity. From water treatment plants to chemical processing facilities, oil refineries to food and beverage production lines, Endress+Hauser instruments measure flow rates with precision that directly impacts process efficiency, product quality, and regulatory compliance. This comprehensive buyer's guide covers the main types of Endress+Hauser flow meters, their ideal applications, and how to select the right instrument for your process.

Why Endress+Hauser for Flow Measurement?

Endress+Hauser is a Swiss-based instrumentation manufacturer with over 70 years of experience in process measurement technology. Their flow measurement portfolio stands out for several reasons:

  • Measurement accuracy — Coriolis meters achieving ±0.05% accuracy and electromagnetic meters at ±0.2% standard
  • Process compatibility — instruments rated for extreme temperatures (-200°C to +400°C), high pressures (up to 400 bar), and corrosive or abrasive media
  • Industry certifications — ATEX, IECEx, FM, CSA hazardous area approvals for explosive environments; FDA/3-A compliance for hygienic applications
  • Digital connectivity — HART, PROFIBUS, Modbus, FOUNDATION Fieldbus, EtherNet/IP, and Bluetooth integration
  • Long operational life — no moving parts in electromagnetic and Coriolis designs means minimal maintenance and 20+ year service life
  • Global service network — calibration, repair, and technical support available in over 100 countries

Types of Endress+Hauser Flow Meters

Endress+Hauser manufactures four primary flow measurement technologies, each optimized for different media types, pipe sizes, and accuracy requirements:

Electromagnetic Flow Meters (Magmeters) — Promag Series

The Promag series uses Faraday's law of electromagnetic induction to measure the velocity of conductive liquids. A magnetic field is applied across the pipe, and electrodes detect the voltage generated by the flowing conductive fluid, which is proportional to flow velocity.

Key characteristics:

  • Measures conductive liquids only (minimum conductivity typically 5 µS/cm)
  • No pressure drop — full-bore design with no obstructions
  • Unaffected by temperature, density, pressure, or viscosity changes
  • Pipe sizes from DN 2 to DN 2400 (1/12" to 96")
  • Accuracy: ±0.2% to ±0.5% of reading

Popular Promag models:

  • Promag W — water and wastewater applications (drinking water, irrigation, sewage)
  • Promag P — chemical process applications with aggressive media
  • Promag H — hygienic applications (food, beverage, pharmaceutical)
  • Promag L — low-flow applications with small pipe sizes

Best for: water/wastewater treatment, chemical dosing, pulp and paper, food and beverage, mining slurries, and any application with conductive liquids.

Coriolis Flow Meters — Promass Series

The Promass series uses the Coriolis effect to simultaneously measure mass flow, density, and temperature. Fluid flows through vibrating measurement tubes, and the Coriolis force causes a phase shift in the tube vibration proportional to mass flow rate.

Key characteristics:

  • Measures mass flow directly — no compensation for density or temperature needed
  • Simultaneously outputs mass flow, volume flow, density, and temperature
  • Works with virtually any fluid: liquids, gases, slurries, and two-phase mixtures
  • Highest accuracy: ±0.05% for liquids, ±0.25% for gases
  • Pipe sizes from DN 1 to DN 400 (1/24" to 16")

Popular Promass models:

  • Promass F — the universal Coriolis meter for process applications, available in the widest size range
  • Promass Q — optimized for custody transfer and high-accuracy fiscal metering
  • Promass A — compact single-tube design for chemical and pharmaceutical applications
  • Promass E — cost-effective Coriolis for standard process applications
  • Promass X — large-line Coriolis for high-volume applications (up to DN 400)

Best for: custody transfer, batching and blending, chemical feed, LNG and gas measurement, pharmaceutical manufacturing, and any application requiring simultaneous mass, density, and temperature data.

Ultrasonic Flow Meters — Prosonic Flow Series

The Prosonic Flow series measures flow by analyzing the transit time of ultrasonic pulses traveling with and against the flow direction. The difference in transit time is proportional to flow velocity.

Key characteristics:

  • Non-invasive clamp-on option available — no pipe cutting or process shutdown required for installation
  • Works with both conductive and non-conductive liquids (unlike magmeters)
  • No pressure drop and no moving parts
  • Accuracy: ±0.3% to ±1.0% depending on model and installation
  • Inline and clamp-on versions available

Popular models:

  • Prosonic Flow E — inline ultrasonic for standard liquid applications
  • Prosonic Flow W — clamp-on ultrasonic for water and wastewater (no pipe modification needed)
  • Prosonic Flow G — ultrasonic gas flow measurement

Best for: retrofit installations where pipe cutting is not feasible, non-conductive liquids (hydrocarbons, solvents, deionized water), temporary flow measurement campaigns, and gas flow applications.

Vortex Flow Meters — Prowirl Series

The Prowirl series measures flow by detecting the frequency of vortices shed by a bluff body inserted in the flow stream. The vortex shedding frequency is proportional to flow velocity.

Key characteristics:

  • Versatile — measures liquids, gases, and steam with a single instrument
  • Integrated temperature and pressure compensation for mass flow of steam and gases
  • No moving parts, low maintenance
  • Wide operating temperature range (-40°C to +450°C)
  • Accuracy: ±0.75% to ±1.0% of reading

Popular models:

  • Prowirl F — flanged version for standard industrial applications
  • Prowirl R — reduced bore for cost-effective measurement
  • Prowirl D — dual-sensor version with integrated temperature measurement
  • Prowirl O — for saturated and superheated steam measurement

Best for: steam measurement (saturated and superheated), compressed air and industrial gas flow, hot water and thermal energy metering, and general-purpose liquid flow in process industries.

How to Select the Right Flow Meter

Choosing the correct Endress+Hauser flow meter depends on answering several key questions about your application:

1. What is the fluid being measured?

  • Conductive liquid → Promag (electromagnetic) or Promass (Coriolis)
  • Non-conductive liquid → Prosonic (ultrasonic), Promass (Coriolis), or Prowirl (vortex)
  • Gas → Promass (Coriolis), Prosonic Flow G (ultrasonic), or Prowirl (vortex)
  • Steam → Prowirl (vortex)
  • Slurry or abrasive media → Promag (electromagnetic)

2. What accuracy do you need?

  • Custody transfer / fiscal metering (±0.05%) → Promass Q (Coriolis)
  • Process control (±0.2-0.5%) → Promag or Promass
  • Monitoring / balance (±1%) → Prosonic or Prowirl

3. What are the process conditions?

Consider temperature range, pressure rating, pipe size, flow rate range, and whether the medium is corrosive, abrasive, or hygienic. Endress+Hauser offers material options including stainless steel, Hastelloy, tantalum, and PTFE linings to handle extreme conditions.

4. Can you modify the pipe?

If cutting into the process pipe is not feasible, choose a clamp-on ultrasonic (Prosonic Flow W) for non-invasive measurement.

Buying Endress+Hauser Flow Meters From Alo Tech Solutions

Alo Tech Solutions supplies Endress+Hauser flow meters to industrial buyers worldwide with free DDP shipping. Every order includes:

  • Genuine Endress+Hauser instruments sourced from authorized channels
  • Free worldwide DDP delivery via DHL Express — all duties, taxes, and customs fees included
  • Competitive US pricing often below regional distributor quotes
  • Purchase orders accepted with formal commercial invoicing
  • Technical support to help you select the right instrument for your application

Contact us at info@alotechsolutions.com with your application details — fluid type, pipe size, flow range, temperature, pressure, and required certifications — and we will provide a detailed quote within 24 hours. Visit our store to browse available Endress+Hauser products.

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Etiquetas: Buying guide, Endress+hauser, Flow meters, Industrial automation, Process control