I have written blogs about laminar and turbulent flows as related to the Reynold’s number. Now, let’s demonstrate the difference between the two flows and the advantages of laminar flow from EXAIR’s engineered air nozzles; as demonstrated by our VariBlast Safety Air Gun.
EXAIR has been manufacturing Intelligent Compressed Air Products since 1983. In that time, we have engineered many products for new and existing markets that required better efficiency, versatility, safety, and effectiveness. In this blog, I will discuss the features and benefits of the VariBlast Safety Air Guns.
To start, the unique feature that sets the VariBlast apart from other small air guns is the force variability. Unlike the “all or nothing” blowing forces with most air guns, this valve is designed to control the opening to allow for a variable force with the same nozzle. This will help you to not “overuse” the compressed air blowing. The VariBlast Safety Air Guns are made from a durable cast aluminum construction for tough industrial use. They have a rugged ergonomic grip with a user-friendly trigger. The compressed air inlets are located in two different positions to best fit your area. They also have an easy storage handle to hang the Safety Air Gun nearby. In addition to the VariBlast Safety Air Guns, EXAIR has options to enhance the features. Here is a list of them:
Air Nozzles can make or break an air gun in safety, efficiency and effectiveness. EXAIR Air Nozzles are OSHA compliant for noise and dead-end pressure. We offer nine different types of air nozzles with the VariBlast Safety Air Gun; making it very effective for a range of applications.
OSHA 1910.242(b) requires chip guarding when compressed air is used for cleaning and blowing. EXAIR offers Chip Shields with the VariBlast Safety Air Guns to meet this requirement. They are made from a polycarbonate disc which is practically unbreakable. It protects the operator from any blow back of shavings, debris, and coolant. They come standard with a durable rubber grommet that squeezes the extensions and can be adjusted for greater protection.
For those far away targets and hard-to-reach areas, EXAIR offers aluminum extension pipes to attach to the VariBlast Safety Air Guns. They can range from 6” (15 cm) to 72” (183 cm) in length. This light-weight and durable material allows for easy handling when reaching high above your head or spanning across unsafe areas. With the EXAIR air nozzles at the end, the blowing force is not sacrificed as the back pressure will create a high velocity air stream.
To get the proper amount of compressed air from the piping system to the VariBlast Safety Air Guns, EXAIR offers Coiled Hoses. They are made of a durable abrasion-resistant nylon material that is 12 feet long (3.6 meters). They have swivel fittings to allow for easy uncoiling, and a spring strain relief to keep the hose from kinking at the ends. The coiled design makes it easy to reach around the work area and retract back to the substation. This will help to keep the hose off the ground where potential dangers could occur.
To improve the VariBlast Safety Air Guns, EXAIR offers a series of filters and regulators. The filters will remove dirty particles and liquid water from the compressed air that can affect the performance as well as contaminate the surface that you are cleaning. The regulators are used to control the amount of air pressure used by the VariBlast Safety Air Gun; making them even more efficient. The idea for compressed air savings is to use the least amount of compressed air to do the job. The filter and regulator combination will allow you to control the proper amount of clean dry air to be used.
Not all air guns are the same. A check list should be created for any air gun. Is it safe, efficient, quiet, durable, ergonomic, and flexible? The VariBlast Safety Air Guns meet every item on that list. This is why the EXAIR VariBlast Safety Air Gun was awarded the Silver award by Plant Engineering in 2019. To go even farther, EXAIR has a promotion where we will be giving away for free a model 1126 1” Flat Super Air Nozzle, a $48.00 value, from now until the end of September 2020 with qualified purchases. (Check it out HERE). If you expected more from your current air guns, you can try any of the EXAIR Safety Air Guns. An Application Engineer is available to help recommend the best air gun for your application. You will not be disappointed.
Safety is a key part of our culture at EXAIR Corporation. We have regularly scheduled, all-hands required, safety training on a number of topics. Our Order Entry team can likely tell you as much about our lockout/tagout procedures as our Machinists can. Nobody even thinks about entering The Shop without safety glasses, and it’s not just because of the signs.
OSHA 1910.242(b) states that “Compressed air shall not be used for cleaning purposes except where reduced to less than 30 p.s.i. and then only with effective chip guarding and personal protective equipment.“ (emphasis mine) All EXAIR Intelligent Compressed Air Products are engineered to meet the requirements of the first part (30psi outlet pressure to prevent dead ending…we’ve written about that numerous times, including here, here, and here) and we can also provide pre-installed devices to satisfy the second part: the EXAIR Chip Shield.
Any EXAIR VariBlast or Heavy Duty Safety Air Gun can come fitted with a Chip Shield, and any Soft Grip Safety Air Gun, except for those with Stay Set Hoses, can as well. Safety Air Guns with Back Blow Nozzles automatically come with a Chip Shield. The principle is simple: a clear polycarbonate (so you can still see what you’re doing) round disc slips over a short (or long if you want) pipe extension between the gun & the nozzle. It’s fitted with a rubber grommet so you can position it to where it’s most effective – sometimes that might be closer to the part being blown off; sometimes it may be back a little closer to the operator.
If you already have an air gun that’s doing the job, you can easily add an EXAIR Chip Shield to it. They’re made to fit a wide range of extension diameters, and can even come with the extension if you need it. We also stock a number of adapter fittings; if you know what threads your air gun has (or if you can send us some photos) we can quickly & easily spec those out for you.
Since 1983, EXAIR Corporation has been manufacturing quiet, safe, and efficient compressed air products for industry (emphasis mine.) If you have concerns or questions about safety in regard to your compressed air use, call me.
EXAR’s VariBlast® Compact Safety Air Guns are small and lightweight air guns capable of handling the toughest of jobs. With its variable flow trigger being its greatest design feature, it can take on small jobs and even big ones! This means you can get different flow and force out of the same nozzle by just adjusting the amount you pull the trigger.
The VariBlast Safety Air Gun, when outfitted with an EXAIR nozzle is OSHA safe and CE compliant.
The VariBlast can also be customized by adding one of our many 1/8 NPT engineered air nozzles, a chip shield and even an extension pipe up to 72″ long.
The VariBlast is easy to rebuild, every wear item is available in the 902001 rebuild kit. These parts can be used to rebuild any VariBlast Compact Safety Air Gun that, through use, has become worn. See this video to see how easy it is to rebuild this gun, and make it feel brand new!
If you have questions about the VariBlast or to discuss any of the 15 different EXAIR Intelligent Compressed Air® Product lines, feel free to contact EXAIR and one of our Application Engineers can help you.