Quick Disconnects and Push In Fittings are not Ideal for Peak Performance

In order to achieve the best performance of your EXAIR Intelligent Compressed Air® product, a steady flow of compressed air must be supplied at the optimal pressure. Compressor output pressure, air flow rate, piping ID (inner diameter), the smoothness of the inside of the pipe and connector type all contribute to the performance.

Especially for manufacturing uses, it is important to consider both the air pressure and air flow being produced by the air compressor providing the supply for all tooling. It is possible for an air compressor to produce sufficient supply pressure for an EXAIR product while not having adequate air flow to use the product for very long.

The optimal air pressure for most EXAIR products is 80 PSIG, with the exception of Vortex Tube based products, which are rated at 100 PSIG. Operating EXAIR products at air pressures less than 80 PSIG may lead to lower performance, but EXAIR encourages operating any blow-off product at as low a pressure as possible to achieve your desired result. A simple pressure regulator can lower your pressure and save energy. As a general rule near the 100 PSIG level, lowering air pressure by 2 PSIG will save 1% of energy used by an air compressor. Operating the product at pressures greater than 80 PSIG may produce slightly higher performance, but will require more energy to produce only a small gain.

Make sure that connectors and fittings do not restrict compressed air flow in any manner. Quick connectors can be especially problematic in this area. Because of their construction, quick connections that are rated at the same size as the incoming pipe or hose may actually have a much smaller inner diameter than that associated pipe or hose. This will significantly restrict the amount of air that is being supplied to the tool, starving it of the air flow it needs for best performance. In some cases, if the fitting is too small, the tool may not work at all!

EXAIR products are designed to improve the overall efficiency of your operations. If you need help and have questions please contact any of the Application Engineers. There is no risk to trying our products as we have a 5 year warranty and also a 30 Day Guarantee to all of our US and Canadian customers.

Eric Kuhnash
Application Engineer
E-mail: EricKuhnash@exair.com
Twitter: Twitter: @EXAIR_EK

Static Solutions for Clean Rooms and Controlled Environments

Clean rooms and controlled environments are a critical spaces for manufacturing, testing or scientific research under conditions which require less contamination from the environment. They have a low or controlled level of pollutants such as dust, other airborne particles, or chemicals. They may also limit specific materials from even entering the room. Many clean rooms work by providing a positive pressure inside the room and filtering the air entering the room. This positive pressure pushes contaminated air out of the room and the filters clean up any air moving into the room. Many controlled environments have specifications on humidity levels, maximum values for static charges, maximum values for the size of particles allowed in the air, temperature, and what materials are prohibited to enter.

With the patented and award winning Intellistat Ion Air Gun and the NEW patented Intellistat Ion Air Nozzle, we have the perfect solution for these scenarios. These are intelligent compressed air® products that create and utilize ionized air to eliminate static and remove troublesome particulates in clean rooms and controlled environments. Using a minimal amount of compressed air, and having a precise blow off pattern, each of these products can reduce static form 5000 volts, to less than 500 in under 1 second. These Intellistat products are balanced to minimize a static charge to +/- 30V, and can be used to eliminate static on some of the most sensitive electronics.

Both of these products are rated Class 5 for Clean Rooms and controlled environments per ISO 14644-1. They are also OSHA compliant for noise and dead end pressure. Other features of both products include a 6mm air connection, and a red and green LED light to signify the ionized air is being produced.

As you can see in the opposing pictures, the differences lay in the delivery system of the Ionized Air. The Intellistat Ion Air Gun offers a short throw, fast acting, and effortless trigger so that the end user can point and shoot the static away. The Intellistat Ion Air Nozzle comes with a compact Stainless Steel adjustable mounting bracket to provide hands free operation. An easy on and off switch on the top is activated and away goes the static.

Please let me know if you have questions, or would like to put these amazing tools to work in your Clean room or other application.

Thank you for stopping by,

Brian Wages

Application Engineer

EXAIR Corporation
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Super Ion Air Knives Remove Static From Coil Stock for Metal Food Packaging Manufacturer

Here on the EXAIR Blog you’ll often find a host of applications and discussion centered around static electricity during the fall and winter months. The reason for this is that during periods of lower humidity, it’s much easier for static to build up and pose problems for a variety of industrial processes. During the summer, higher levels of humidity “coat” the atoms of a molecule and reduce the amount of static buildup.

With that being said, just because it’s right in the middle of summer where humidity levels are rather high doesn’t mean all static problems go away. Some applications generate such a high level of static that they require a solution year-round. Such was the case for a recent customer that manufactures a wide variety of various styles of cans and cups used by the food industry.

For a new process for one of their customers, they apply a wax to the coil stock using an electrostatic waxer in front of their cupper lines. The waxers run at -20Kv to charge the atomized wax particles to attract to the positive charge on the coil stock. The coil stock then carries a residual charge as high as 18Kv and in less than a minute would immediately cling to their cupper die press. Without a solution for removing the static, they were unable to run this machine.

Model 112036 SIAK

The coil stock width ranges from about 33-34” and carried a charge on either side of the material. The recommended solution was to install (2) of our Model 112036” Super Ion Air Knives just in front of the material’s entry into the cupper die on top and bottom of the coil stock. They were up against a firm deadline to get material completed and to their customer. A delay in other components had pushed them right up against their commitment to deliver finished cans to their customer, something we’re all becoming all to common with nowadays.

Fortunately for them, EXAIR had the parts available and in stock. We shipped them out the very same day for next day early AM delivery. They had them up and installed before lunch and production was resumed. At a time where it seems everything is out of stock for a number of reasons, EXAIR is still shipping orders out same day. If you need a solution, and you need it fast, give us a call.

Tyler Daniel
Application Engineer
E-mail: TylerDaniel@EXAIR.com
Twitter: @EXAIR_TD

Henri Coanda and his Effect on Compressed Air

Henri defined the Coanda Effect – the tendency of a jet of fluid emerging from an orifice to follow an adjacent flat or curved surface and to entrain fluid from the surroundings so that a region of lower pressure develops.

Compressed air flows through the inlet (1) to the Full Flow (left) or Standard (right) Air Knife, into the internal plenum. It then discharges through a thin gap (2), adhering to the Coanda profile (3) which directs it down the face of the Air Knife. The precision engineered & finished surfaces optimize entrainment of air (4) from the surrounding environment.

Henri-Marie Coanda (1885-1972) discovered the Coanda Effect in1930. He observed that a stream of air (fluid) emerging from a nozzle tends to follow a nearby curved surface, if the curvature of the surface or angle the surface makes with the stream is not too sharp. For example, if a stream of fluid is flowing along a solid surface which is curved slightly from the stream, the fluid will tend to follow the surface.

A number EXAIR products are designed to utilize the Coanda Effect and aid their performance. In some products, the Coanda Effect aids to create an amplification area where additional ambient air is drawn into the total airflow to increase total volume of air upon a target. This creates a more efficient and effective product. Also, since not as much compressed air is required, the noise levels decrease for products like EXAIR’s air knives, air nozzles, air jets and air amplifiers. EXAIR has been successful with positive impact for compressed air energy savings and noise reductions helping us meet or exceed OSHA Standard 29 CFR-1910.95 9(a) Maximum Allowable Noise Exposure.

Please contact EXAIR with regards to our Intelligent Compressed Air Products. We can help you with your next cooling, blow-off, drying or any compressed air needs.

Eric Kuhnash
Application Engineer
Email: erickuhnash@exair.com
Twitter: @EXAIR_EK

1- Spoon Coanda image- https://creativecommons.org/licenses/by-sa/2.5/deed.en