The next step is simple but powerful: turn off compressed air applications when they’re not needed.
If your process doesn’t require compressed air continuously, the EXAIR Electronic Flow Control (EFC) can help. This device uses a sensor to automatically control how long your compressed air operation runs, turning it on only when needed.
A great example is from a customer who used compressed air to clean computer monitors. When the screen wasn’t in the airstream, the air was simply wasted. With the EFC, air was shut off automatically whenever it wasn’t needed—saving energy, reducing costs, and extending the life of equipment.
The objective in this step is crystal clear: when your compressed air doesn’t need to be on, turn it off and save.
For more information on the EFC—or on any part of our Six Steps to Optimizing Your Compressed Air System—feel free to contact us.
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 – Measure 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.
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. Please de-energize the compressed air in that line to install. The Digital Flowmeter uses a clamp to mount on 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 recalibrated. 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. 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 for 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 DFM
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 Port
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.
Blocking Rings
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. We will be happy to help you.
When touring a manufacturing facility, one of the most striking observations is the high noise levels present. The various operational processes contribute to an overall sound intensity that can exceed safe limits for workers. According to OSHA Standard 29 CFR – 1910.95(a), there are specific maximum allowable noise exposure levels based on both duration and sound intensity. Prolonged exposure to excessive noise can lead to significant hearing damage or even complete hearing loss if appropriate hearing protection is not utilized.
Sound
To assess whether sound levels in your facility are excessively high, consider utilizing EXAIR’sDigital Sound Level Meter Model 9104. This device is specifically designed to measure sound pressure levels in the environment, providing readings in decibels (dB) on both the A and C scales, with options for fast or slow response times. By employing this meter, users can pinpoint areas where noise levels may necessitate personal protective equipment (PPE) to prevent hearing loss. Additionally, it may help identify underlying issues that require repair, ultimately leading to a reduction in noise levels.
In contrast to the 98dBA sound level from this array of nozzles, the sound pressure level from an EXAIR Super Air Knife is only 69dBA.
Once measurements are taken, it becomes possible to pinpoint the specific applications that require attention, whether through repairs, mitigation strategies, or personal protective equipment (PPE) measures. Common culprits of excessive noise levels from compressed air include open pipe blow-offs, cross-drilled holes in safety air gun nozzles, liquid nozzles used for air blow-offs, and poorly designed air nozzles. By replacing these open tubes and cross-drilled nozzles with an engineered EXAIR Super Air Nozzle, you can significantly decrease both air consumption and noise levels.
EXAIR Super Air Nozzle entrainment
At EXAIR, we uphold the principle that safety is a collective obligation. Our commitment to producing high-quality engineered products emphasizes safety and efficiency. To ensure the well-being of your operators, we provide a variety of blow-off products specifically designed to reduce noise levels to safe standards.
If you have any questions about reducing sound levels, or anything regarding EXAIR and our products, please do not hesitate to reach out. We would love to hear from you!
Last week, we started with step one of the Six Steps to Optimizing Your Compressed Air System: measuring and understanding your usage. Once you know how much air is being consumed, the next step is clear—find and fix the leaks.
If you search for “compressed air leaks,” you’ll find no shortage of articles on the topic. One from the Department of Energy highlights just how costly leaks can be. For example, fixing only ten leaks in a single compressed air system saved one company $57,069. That’s a huge number—and it came from just ten leaks.
Every joint or connection in your system is a potential leak point. The size of the leak determines how much money (and efficiency) is lost. The most effective approach is to locate leaks systematically and eliminate them permanently.
There are several methods for leak detection, but the tool we recommend is the Ultrasonic Leak Detector (ULD). It can detect leaks up to 20 feet away and works even in noisy industrial environments. In fact, fixing just one leak the size of a 1/16” hole can pay for the ULD in a year—and that doesn’t account for the many other leaks you’ll uncover and repair.
If you’re using a Digital Flowmeterfrom step one, you’ll also be able to quantify the air you’ve saved once those leaks are sealed. The combination of measurement and action creates a powerful cycle of optimization.
That wraps up step two. Next week, we’ll continue with step three in the series. In the meantime, if you’d like to talk through leak detection or optimization strategies for your own system, don’t hesitate to reach out.
