EXAIR’s Efficiency Lab can Help With your Energy Audit, Quantify Savings and Provide an ROI

I recently received an inquiry from a customer to test their current air guns through our Efficiency Lab service. According to the operators, the handheld blow gun they were purchasing from a commercial retailer was too loud and complaints were rolling in.  They were also hoping to save some compressed air in the process as they were performing an energy audit at the same time.

Commercial Air Gun w/ Cross Cut Hole
Commercial Air Gun w/ Cross Cut Hole
Cross Cut Hole Nozzle
Cross Cut Hole Nozzle

The gun they sent in looked fairly similar to our Precision Safety Air Gun but it did not have an engineered nozzle on the tip of it.   Instead, it was simply a cross cut hole in a piece of material.   The air inlet to the gun was a 1/4″ NPT just like our Precision Safety Air Gun, the extension on the gun was slightly longer, the only significant variance I saw was the tip.

EXAIR Model 1410SS-CS
EXAIR Model 1410SS-CS
The Model 1110SS Nao Super Air Nozzle and Chip Shield
The Model 1110SS Nao Super Air Nozzle and Chip Shield

To try and get as much information as possible I measured the O.D. and I.D. of the extension, the hole size was approximately .140″.  I measured the extension on our Precision Safety Air Gun just to see what is different, it came in at the same size.  So, I flow tested the competitive blow gun with their tip on it and came up with air consumption of 12.69 SCFM, noise level of 92 dBA at 3′ away, and a blowing force of 11.5 oz at 80 psig.   I then measured the same attributes of EXAIR’s model 1410SS-CS Precision Safety Air Gun at 80 psig inlet pressure.  The model 1410SS-CS measured 8.3 SCFM, gave 8.1 ozs of working force, and only produced a 75 dBA sound level from 3′ away.

The sound level reduction was a total of 17 dBA which is below the OSHA standard for allowable noise level exposure, as well as reduced their air consumption by 4.39 SCFM.  That is almost a 35% reduction in their compressed air usage per gun replaced.  After seeing these levels of reduction the customer had more than enough information to provide management with in order to replace the blow guns not just for noise level reduction but also because it will reduce air use and save money. A clear supportive role in their energy audit.

If you would like to discuss how EXAIR can provide some free force, flow, and noise level testing for your facility, please contact an Application Engineer or check out the Efficiency Lab page on our site.

Brian Farno
Application Engineer Manager
BrianFarno@EXAIR.com
@EXAIR_BF

Super Air Nozzles Are a Better Solution for an Application

Granular brick residue blow off 2

Earlier this morning I took a call from a production facility here in the U.S. with a specific application need.  In this facility, bricks are made via automated processes, and during one stage of production a residue remains which affects future product progression.

To combat the residue accumulation, airguns were mounted in place with the triggers zip tied and controlled by an adjacent solenoid.  Using 1/4″ NPT nozzles of unknown origin, these air guns remove the build up of small granular dirt along the edge of the bricks. An image of this setup can be seen above.

While the solution provided some relief, the compressed air use was deemed excessive and the noise level too high.  The end user in this case contacted EXAIR for a more efficient and more quiet solution.

Due to the size of the existing nozzles, and the desire of the end user to only replace the nozzle portion of the setup, our recommendation was to use model 1100 or model 1126 Super Air Nozzles.  Based on prior experience, I recommended to test each style of nozzle to determine which will provide the better result.

The customer responded in turn. “Not a problem.  We have other applications that need this same type of upgrade.  I’m sure we’ll use them both and be calling you again.”

Solving problems and upgrading existing solutions is what EXAIR products are designed to do.  If you have an application you’d like to discuss, contact an Application Engineer.

Lee Evans
Application Engineer
LeeEvans@EXAIR.com
@EXAIR_LE