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FAQ Library

Welcome to our FAQ Library. Select the product family you are interested in by using the links on the left.

More information on all of our products can be found in the products section of this web site. Registered site users can also view our CAD files, installation and maintenance sheets and application database.

If you cannot find an answer to your question, or if you need more help with your application, please contact an Application Engineer at 800-903-9247 (513-671-3322 outside the U.S. and Canada).

If I have an Ion Bar and want to add compressed air, can I?

A Super Air Knife or Standard Air Knife can easily be retrofitted to your existing Ionizing Bar.  If you know the length of the bar you currently have, we can specify the parts you will need in order to convert the Ion Bar to a Super Ion Air Knife or a Standard Ion Air Knife.  Please contact an Application Engineer at 1-800-903-9247.

If I simultaneously connect the Summing Remote Display and the Data Logger to the Digital Flowmeter, will the accuracy of the reported air consumption be changed?

No, connecting both the Summing Remote Display and the Data Logger will not affect the accuracy of the Digital Flowmeter.

Is it possible to have my Digital Sound Level Meter calibrated?

Yes, we offer an NIST traceable calibration and repair for damaged units for the Digital Sound Level Meters.  Please contact EXAIR for a quote.

Is the EFC (Electronic Flow Control) available in different voltages?

The EFC will accept input voltage from 100-240V AC. It has an internal power supply which converts input voltage to 24V DC output voltage to operate the sensor, solenoid and timer.

Is the Super Air Wipe available in materials other than aluminum?

Yes, the Super Air Wipe is available in stainless steel. For other materials, contact an Application Engineer to discuss your specific requirements.

My line pressure is 80-100 PSI and the EXAIR product is not performing well. Why?

In the majority of cases, poor performance can be attributed to restrictive air lines, fitting, quick connects or insufficient air supply.  Although the system pressure may be at 100 PSIG, pressure at the product will be considerably lower if it is being starved for air.  Check the installation and maintenance sheet that came with the product for proper air line sizes.

A good test is to install a pressure gauge at the inlet of the product.  Check the static pressure (with the product off) against the dynamic pressure (with the product running).  Any significant pressure drop is an indication of improperly sized air lines, a restriction in the line or the compressor hasn’t the capacity to supply the compressed air needed.

If the dynamic air pressure is within the operating range of the product, then dirt and contamination should be checked next.  If the nozzle(s) plug up, they do not operate properly.

If the above does not solve your problem, contact an Application Engineer at 1-800-903-9247.

My Reversible Drum Vac was working just fine when I got it, but it doesn't work very well any more. Why?

The Reversible Drum Vac has no moving parts. Degradation in performance is most likely due to contamination from the compressed air supply. Maintenance on the Reversible Drum Vac is not normally required if it is provided with the proper air filtration. Disassemble the unit and clean according to the Installation and Maintenance instructions that came with your unit.

Also, large pressure drops are possible across filter separators if the element is clogged with dirt. Check filter and replace element if needed.

A troubleshooting guide is available for the Reversible Drum Vac.

There are so many choices available from your supply.  How do I know which one to choose?

 EXAIR provides a large array of compressed air nozzle choices to fit a wide variety of applications. We have quick-pick charts located within the catalog for our low force and high force air nozzles. These charts are located in our catalog and are also located on our web site.  (Low Force, High Force) These charts list each nozzle side-by-side with pertinent data to help you compare the nozzles against one another including: connection size, flow, force, and noise generated.  You can easily pick which nozzles most closely match the important application factors you have in mind. If you prefer assistance or confirmation with your choice of nozzle, please contact an Application Engineer. 

We have some dead spots on our air knife. What should we do?

The flow characteristics of the Air Knife (Super or Standard) have been tested before it was shipped. We suggest that you follow the disassembly instructions and inspect the Air Knife for dirt contamination.  Cleaning instructions can be found on the installation and maintenance sheet shipped with the Air Knife or in Adobe Reader PDF format on our web site. A second possibility is that the Air Knife has been undersupplied. Do not use restrictive fittings, undersized line or filters that may not allow enough airflow into the plenum chamber of the Air Knife.  Air Knives that are 18" or longer must be supplied at two compressed air inlets at opposite ends of the Air Knife. A third possibility is that the screws may have been over tightened during mounting or during reassembly. Screws should be tightened snugly (7.5 ft/lbs).

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