ENVEA

- Model Stackflow 200 - QAL1 Certified Averaging Pitot Flue Gas Flowmeter

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The STACKFLOW 200 uses the wellestablished Averaging Pitot sensor technology to provide continuous emission monitoring of Flow, Temperature and Pressure. Utilised as a standalone sensor or in combination with Environnement S.A & PCME analyzers and controllers for the monitoring of particulates, gases and flue gas as part of a larger monitoring network.

  • Fitted on single point installation, making on-site work easier for setup & maintenance
  • Automatic inlet cleaning cycle for reduced maintenance
  • Optional inbuilt gas sampling port allows cost-effective CEMS
  • Integration on a single sampling point
  • Integrated flange for enhanced stack connection compatibility and reduced installation time & costs
  • Standalone sensor or combined with single/multi-channel controllers for enhanced user interface
  • Modular design (3 rod lengths available as standard) makes it very easy to install on any type of stack, even on existing flanges
  • Certified by TÜV to EN 15267-3 with QAL1 as defined by EN 14181
  • Complies with EN 16911-2 and is US EPA PS-6 capable
  • Zero and span checks to satisfy EN 14181, QAL3 and US EPA PS-6
  • Installation possible on the same flange with the gas sampling system SEC BOX that uses an exclusive dry permeation technique, designed to meet almost all gas sample conditions.

  • Waste to Energy and Incineration Plants
  • Emissions from Metal, Chemical and Mineral Processing Industries
  • Power and Combustion Plants
  • Variable speed fans on dust arrestment plant
  • Satisfies European Industrial Emission Directive 2010/75/EU and US EPA PS-6

  • Averaging Pitot probe for improved representative measurement of velocity, temperature and pressure
  • Zero and span checks to satisfy EN 14181, QAL3 and US EPA PS-6
  • Automatic inlet cleaning cycle for reduced maintenance
  • Optional inbuilt gas sampling port for cost-effective CEMS integration
  • Integrated Flange for enhanced stack connection compatibility and reduced installation time and costs
  • Three probe lengths for improved representative sample and increased application suitability
  • Standalone sensor or combined with single-channel or multi-channel Controllers for enhanced user interface, cost-effective and easy
  • integration of additional sampling points or other systems, such as  particulate monitors, to provide mass emission rates

Application conditions:

  • Stack Temperature: -20°C to 500°C (-4°F to 932°F)
  • Stack Dust Concentration: suitable for dust loads up to 150 mg/m³
  • Stack Diameter: 0.45 – 5 m (1.5 – 16.4 ft)
  • Ambient Temperature: -20°C to 50°C (-4°F to 122°F)

Gas Velocity Range:

  • 2– 30 m/s (main Certification Range)
  • 2 – 50 m/s (extended Certification Range)
  • Minimum Detection Velocity: 2 m/s
  • Resolution: 0.1 m/s
  • Lack of Fit (Linearity): < 0.3 m/s from 2–30 m/s, < 0.5 m/s above 30 m/s
  • Zero/Span Drift: < 0.1m/s per month
  • Active Measurement Length: 0.5 – 1.5 m (1.6 – 5 ft)
  • Response Time: 15 s
  • Stack Pressure Range: 600 – 1100 mbar (±1%)
  • Stack Temperature Range: 0 – 500°C (32°F to 932°F), class B tolerance
  • Temperature Accuracy: up to 250°C ± 1.5°C, up to 500°C ± 3.3°C

  • Certified by TÜV to EN 15267-3 with QAL1 as defined by EN 14181
  • Complies with EN 16911-2 and is US EPA PS-6 capable
  • Satisfies European Industrial Emission Directive 2010/75/EU

Inbuilt Zero and Span Checks
Zero and Span checks can be performed on the STACKFLOW 200 sensor as required by EN 16911-2 and EN 14181 (for QAL3). The sensor checks are done manually using the built-in calibration module and an external reference differential pressure gauge. In addition to assessing the absence of any significant measurement drift the overall performance and correct operation of the sensor is also checked.

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