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

Adapting To The Situation At Hand

Earlier this week I received a call from a customer who had an issue in his facility with the hand held blow guns the operators were using.   The units he had were simply too loud and he was trying to get below the 85 dBA threshold for hearing protection.  Not to mention they were using a large volume of compressed air.

I discussed the application with the customer only to discover they are blowing dry aluminum chips off a table and need a three foot extension so the operators can easily reach all extents.   The nozzles they had on their existing blow guns were essentially a cross drilled “safety nozzle”.  The customer was using the same model air gun throughout his facility at a total of 33 machining centers.   Each unit had a gun with a 3′ extension and a cross drilled nozzle like tip.

After discussing the amount of chips and what they were using I recommended he utilize a newer style adapter we have that would appear to work on his existing gun with the existing extension.  This means, rather than having to replace the entire air gun, extension pipe, and nozzle, he was able to purchase a simple adapter along with our model 1100 Super Air Nozzle and retrofit his entire facility.  This cut the budget needed by more than half of other solutions he was looking into from other companies.   Picture of the nozzle and adapter are below.

IMG_3934

 

This was just another adapter for EXAIR but it was the right adapter for the customers existing product.  So if you have an existing blow off and you don’t want to replace the entire blow off device but you want to try and upgrade your system, contact us.

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
@EXAIR_BF