6 Steps to get the most out of your Compressed Air System: Engineered Products

Published on by Jordan T ShouseLeave a comment

If you’re reading the EXAIR Blog, you’re probably well aware that compressed air is the most expensive utility in an industrial environment. The average cost to generate 1000 Standard Cubic Feet of compressed air is $0.25. If you’re familiar with how much air you use on a daily basis, you’ll understand just how quickly that adds up.

To make matters worse, many compressed air systems waste significant amounts of compressed air just through leaks. According to the Compressed Air Challenge, a typical plant that has not been well maintained will likely have a leak rate of approximately 20%!! Good luck explaining to your finance department that you’re carelessly wasting 20% of the most expensive utility.

The six steps to optimizing your compressed air system is something we cover a fair amount on this blog. And there is a real reason for that. Yes, we sell compressed air products. But we are also aware compressed air costs money to generate, so using this source responsibly is very important.

This is where the 6 steps come into play, but today we are just covering Step 3. Which is upgrading your blow off, cooling and drying operations using engineered compressed air products. (If you want to read about the other 5 steps, check them out here, Step #1, Step #2, Step #4, Step #5, Step #6)

I compare step three to replacing your house windows. We recently got some prices to replace our windows, but along with that comes the cost savings we expect to get as they are better designed now than in the 1990ies to retain your temperature inside. Thus reducing the cost to cool and heat your home.

Similar to my “upgrade” to new windows, upgrading blow offs, cooling and drying operations using engineered compressed air products is Step 3 in EXAIR’s Six Steps To Optimizing Your Compressed Air System. We’ve assigned an order to these steps in accordance with basic good engineering practice & protocol, but it’s not necessary to follow them in any particular order. In fact, all six steps really don’t apply to every single compressed air system.

Step 3 does apply to most systems, though. I spent a fair amount of time in all sorts of industrial facilities in my previous roles, and almost all the time, regardless of the industry or the size of the facility, the maintenance and production part of the facility used air guns. However, I don’t recall ever seeing an engineered nozzle on one before I came to EXAIR. Since then, I’ve worked with a bunch of users to dramatically reduce compressed air consumption by replacing their cheap and inefficient air guns with EXAIR Safety Air Guns, or by retrofitting EXAIR Super Air Nozzles onto their existing air guns. We actually carry adapters to fit our Super Air Nozzles to a number of readily commercially available air guns for that very purpose.

In addition to air guns & nozzles, our Air Knives have a long history of replacing drilled pipes & pipe manifolds with inefficient nozzles used to make a curtain of air flow. The following chart details the savings you can get from the use of a 24″ Super Air Knife instead of similar devices for a 24″ wide air curtain:

Even though an electric powered blower will use less electricity than the amount of electricity an air compressor uses to supply an engineered product like the Super Air Knife, the maintenance costs make the total cost of ownership eclipse that of the engineered Air Knife.

Our Case Study Library documents many real-world situations where customers worked with us to gather & publish “before/after” documentation, proving the benefits of Step 3. I encourage you to check those out, and if you think you might have an opportunity to do a Case Study with us, we offer discounts or credit for that…give me a call.

Jordan Shouse
Application Engineer

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Creating Custom Solutions for Specific Applications

Published on by Al WooffittLeave a comment

At EXAIR we are proud of our ability to ship our stock and catalog products the same day or the next day on orders received before 2:00pm ET. If you need a replacement part, or a new solution altogether, we can likely get the product to you in no time at all. There are certain applications, however, where the solution is more specific, and our stock options are not going to work out best. There may be a need for a different material, or a specific geometry to get the results the customer is looking for. For instances like this, we work with our customers to create a special, non-stock option.

I was recently working with a customer that needed an Air Knife to cool their material coming out of a hot process. This is a common application for our Air Knives, but for this particular customer, the shape of the Air Knife wasn’t going to fit in their machine. After some discussion, we determined that a curved Air Knife was going to be the best fit (pun intended).

After the customer provided some initial specifications, we put a drawing together. With some back and forth, reviewing drawings, and signing off on final designs, we set to work, producing their specially designed product. Within a few weeks, we were able to provide the specific solution to meet their needs.

If you have an application that needs a more tailor-made solution, give us a call!

Al Wooffitt
Application Engineer

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VariBlast Safety Air Guns

Published on by Russ BowmanLeave a comment

For most of my life, when I brushed my teeth, I’d squeeze out enough toothpaste from the tube to cover the bristles of my toothbrush from one end to the other. That’s what the picture on the side of the toothpaste tube showed. Then, there I was at the dentist’s office one day, in the fifth decade of my life, when I was old enough to know I didn’t have EVERYTHING figured out, but I certainly had brushing my teeth down pat, and the hygienist casually mentioned something about a pea-sized drop of toothpaste being the correct amount to use. THAT couldn’t be right, I thought, but she was confident…and an industry professional…so I took her advice and started using about 1/4 of the amount of toothpaste I’d been using MY WHOLE LIFE.

Recently, I switched (at the suggestion of that same hygienist) the TYPE of toothpaste I was using (apparently protecting tooth enamel is a thing when you make it to my age), and the end of the tube itself is different from the type of tube I’d been using for decades. So different, in fact, that the same squeeze I’d been applying to get a pea-sized drop of toothpaste out now filled the bristles of my toothbrush…again! So I had to re-develop some new muscle memory before the money and time I was spending on toothpaste got all out of hand.

Developing muscle memory for repetitive tasks like that doesn’t take that long at all – turns out, it’s something most of us are really, really good at. Which brings me to the subject of this blog:

Back in 2017, EXAIR developed a new and innovative style of handheld blowoff device: the VariBlast Compact Safety Air Gun. As the name suggests, the “blast” can be “varied” by the operator’s pull of the trigger. They’re available, from stock, with a variety of our engineered Air Nozzles installed:

Rigid Extensions (in lengths up to 72″) and Chip Shields are available with all of these as well.

The VariBlast Compact Safety Air Guns worked out so well, in 2021, we introduced this feature into our VariBlast Precision Safety Air Guns.

VariBlast® Precision Safety Air Guns 2022 Professional Tool & Equipment News PEOPLE’S CHOICE AWARD WINNER

These feature our three smallest Super Air Nozzles, and they’re made for applications that need a tight, focused air flow. The Atto, Pico, and Nano Super Air Nozzles come in hard and durable 316SS or non-marring PEEK thermoplastic. Both offer superior resistance to chemical or corrosive attack. For added reach, we can put 12″ or 20″ extensions between the handle and the Air Nozzle. Like the VariBlast Compact Safety Air Guns, Chip Shields are available on all models.

If you have blowoff applications where precise control by the operator is desirable, a VariBlast Precision or Compact Safety Air Gun is just what you’re looking for. If you’d like to discuss it, give me a call.

Russ Bowman, CCASS

Application Engineer
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Six Steps to Optimizing:  Step 1 – Measure the Air Consumption

Published on by John BallLeave a comment

Since air compressors use a lot of electricity to make compressed air, it is important to use the compressed air as efficiently as possible. EXAIR has six simple steps to optimize your compressed air system. Following these steps will help you to cut electrical costs, reduce overhead, and improve your bottom line. In this blog, I will cover the first step – Measuring the air consumption to find sources that use a lot of compressed air.

Six Steps to Optimizing Your Compressed Air System

Information is important to diagnose wasteful and problematic areas within your compressed air system. To measure air consumption, flow meters are used to find the volume or mass of compressed air per unit of time. Flow rates are very useful data points to find problems like leaks, over-use in blow-offs, waste calculations, and comparison analysis.

There are many different types of flow meters. Many of them entail a breakdown of your current compressed air lines by cutting, welding, or dismantling for installation. This will add costs in downtime and maintenance staff. But, not with the EXAIR Digital Flowmeters. In this blog, I will share the features and benefits of the Digital Flowmeters, including options for you to start measuring and optimizing your compressed air system in Step 1.

Overall, it only takes a few minutes to install and start measuring. The installation kit comes with a drill guide to properly locate the two holes in the pipe. The Digital Flowmeter uses a clamp to mount onto the pipe and to seal the area around the probes. Once it is powered, the unit is ready to measure the air flow inside the pipe with a large LED display. The display can be customized to show flow readings in three different units; SCFM, M3/hr or M3/min; and, it can display the Daily Usage and Cumulative Usage. 

To get started, the EXAIR Digital Flowmeter is a thermal dispersion device that can accurately measure compressed air flows. They use two sensing probes for comparative analysis. One probe is a temperature sensing probe, and the other is a flow-sensing probe. By comparing these, the Digital Flowmeter can measure precisely the mass of air flow without needing to be re calibrated. They are a cost-effective, accurate, and simple way to measure compressed air flow.

EXAIR stocks a large volume of Digital Flowmeters to ship on the same day for U.S. and Canadian customers. We also offer a 30-day unconditional guarantee to try them out. We stock meters for pipe diameters from ½” NPT to 4″ NPT Schedule 40 black pipe. EXAIR can also offer flow meters up to 8″ NPT black pipe; copper pipes with diameters from 3/4″ to 4″, and aluminum pipes with diameters ranging from 40mm to 101mm. If you have another type of piping for your compressed air system, you can give us the material, O.D. or I.D., and wall thickness. We may still be able to get a Digital Flowmeter for you.

For measuring, all the units come standard with a 4 – 20mA analog output. Per your request, we can change this signal to a serial output for RS-485 or Ethernet connections. What more can we offer with the EXAIR Digital Flowmeter? Options. Options upgrade the flow meters to better suit your application. Here is a list below:

EXAIR’s Digital Flowmeter w/ USB Data Logger

USB Data Logger: This option allows for a recording of the flow information. With a software download, you can set up the USB Data Logger to record the flow from once a second (roughly 9 hours of storage) to every 12 hours. After the data points are recorded, you can then download the information into the software to review. Then the information can be uploaded to an Excel program to do further analysis.

Summing Remote: With compressed air pipes running along the ceiling and walls, reading the Digital Flowmeter may be difficult. The Summing Remote has a 50-foot (15 meter) cable to bring the LED display into viewing. The Summing Remote is powered by the Digital Flowmeter, and it can be positioned at eye level, inside managers’ rooms, or around large equipment for monitoring.

Hot Tap Digital Flowmeter: This option is a great way to install a Digital Flowmeter on the pipe without shutting down the compressed air line. We offer this option for 2″ and larger for steel and copper pipes. It gives a quick and easy way to attach them if you have a 24-hour operation or a critical process that needs to run continuously.

Pressure Sensing Digital Flowmeter: If you would like to know the compressed air flow and the air pressure, this option will be able to do this. They are available with the Digital Flowmeters for steel and copper pipes that are 2″ and larger, and for the aluminum piping that is 50mm and larger. This option can display pressure units in either PSI or Bar right on the same LED display that shows the flow readings.

Block-Off Rings: If you want to move your Digital Flowmeter, the Block-Off Rings will be able to cover the openings in your compressed air pipe. They seal around the drilled opening when the Digital Flowmeter is removed from the pipe. They are reusable; so, they can be removed if you want to remount the Digital Flowmeter in the same spot. If you want to use one flow meter in different locations, the Block-Off Rings allow you to do this.

When you need to analyze your pneumatic components, flow is an important point in diagnosing the overall “health” of your compressed air system. The EXAIR Digital Flowmeter can give you that important data point. With optimization, you can cut your energy consumption, improve efficiency, and save yourself money. This blog is an overview of Step 1 of six steps. You may have more questions about the other steps, and that is great! You can find them in other EXAIR blogs, or you can contact an Application Engineer at EXAIR.

John Ball
Application Engineer
Email: johnball@exair.com
Twitter: @EXAIR_jb