Combustion Airflow Systems
Air Monitor designed the AUTO-purge III for applications where the presence of airborne particulate might impair the measurement accuracy of our Combustion Air Flow Station or VOLU-probe array. When activated by an Air Monitor "smart" flow transmitter (such as the VELTRON II, VEL-trol II, MASS-tron II, or VELTRON DPT-plus) or distributed control system, the AUTO-purge III activates a combination of fail-safe valves to introduce high-pressure and high-volume air to the flow measuring device's sensing ports for a short duration. It simultaneously isolates the transmitter from over-pressurization. This periodic purging maintains the sensing ports of the total and static pressure manifolds in a clear, unobstructed condition.
The AUTO-purge III has proven itself in such demanding applications as:
- Fly ash laden combustion air
- Stack gases from a coal fired or other solid fuel fired boilers
- Flue Gas Recirc (FGR)
- Off gases from the carbon black cracking process
- Waste gas to regenerative thermal oxidizers
- Off gases from hazardous waste incinerators
Get an AUTO-purge III or combustion air flow management system today.
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AUTO-purge III
Automated Air Purge System
Electro-pneumatic system automates sensing port debris purging for low maintenance dirty airflow measurement.
Companion System
- Add to flow and transmitter pairings
- Automated pneumatic purging
- Field-selectable purging intervals
- Maintains flow system performance
- Trouble-free operation
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CA Station
Inline Airflow Measuring Station
Differential pressure Pitot airflow traverse array in rectangular & circular constructions for combustion airflow.
0 to 8,000 FPM
- Accuracy: 2-3% of Actual Flow
- Circular/Rectangular; fabricated to any size
- Temperature: ≤800°F
- Carbon steel, Stainless steel
- Built-in flow conditioning
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CAMS™
Combustion Airflow Management
System designed to monitor combustion airflow and purge debris from sensing ports.
Integrated System
- Accuracy: 0.1%
- Temperature and pressure compensated
- Automated pneumatic purging
- Add to flow measurement pairing
- Trouble-free operation
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MASS-tron II
Multivariable Transmitter
Measures differential pressure, absolute pressure, and process temperature providing output of calculated mass flow.
Flow, Temperature, ABS Pressure
- Accuracy: 0.1%
- URL down to 0.05” w.c.
- NEMA 1, optional NEMA 4 and 4X
- 24VAC, 24VDC
- Turndown: 100:1
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VOLU-probe/SS
Insertion Airflow Measuring Probes
Stainless steel airflow traverse probe ideal for dirty applications with corrosive, abrasive, and extreme temperatures.
400 to 10,000 FPM
- Accuracy: 2% of Actual Flow
- Temperature: ≤900°F
- Stainless steel, Hastelloy, Inconel, Kynar
- External or Internal mounting
- Easy installation/removal for maintenance
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VELTRON DPT-Plus
Multivariable Transmitter
Measures differential pressure and process temperature providing output of calculated mass flow.
Flow, Temperature, or Differential Pressure
- Accuracy: 0.1%
- URL down to 0.05” w.c.
- NEMA 4X
- Class I Div 1, Class II Div 1
- 24VAC, 24VDC
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VELTRON II
Transmitter
Measures differential pressure providing output of differential pressure or volumetric flow.
Flow or Differential Pressure
- Accuracy: 0.1%
- URL down to 0.05” w.c.
- NEMA 1, optional NEMA 4 and 4X
- 24VAC, 24VDC
- Turndown: 100:1
