Over the weekend I was working on a car in my driveway and I needed a large volume of air at the far end of the car to try and unplug a clogged sunroof drain… More
I recently had the pleasure of talking with a caller from a consulting firm that specializes in improved ergonomics. They work with clients on everything from preventing carpal tunnel syndrome through the use of things like gel-filled mouse pads for office personnel, to preventing injuries in the workplace due to repetitive strain, heavy lifting, and other physically demanding tasks. They called about an operation where workers used buckets to move 150 pounds of dense pellets from a large container into a smaller vessel for weight load testing. After the test, they move the pellets back into the container, where they stay until the next test is to be run. Then they do it again.
This, of course, was a great fit for a 2″ Heavy Duty Line Vac and a 10ft length of Conveyance Hose. They simply move the suction & discharge hoses from, and to, the storage container & test vessel. Risk of injury is greatly reduced, as the whole Line Vac conveyance system is less than half the weight of one bucket of the material.
This is just the latest success story in the long history of EXAIR Air Operated Conveyors. They’re on the shelf in a range of sizes and materials of construction to meet most any need. If you don’t see what you’re looking for, though, call me and we can discuss your needs.
Recently I was working with a company who grows plants using a method I’ve never heard of before, aeroponics. See I grew up on a farm, so I’m used to the old fashion way to grow crops! Dirt, water and sunlight, or as my grandpa would call them “The three pillars of life as we know it”.
So I had to do some research into aeroponics so I could understand if we could help him. It turns out aeroponics does not use a dirt medium, they relay on a very fine mist to provide the nutrients the plant needs to grow. But its very important that the mist have droplet sizes of less than 50 microns, or the roots will not be able to absorb it.
At that point I knew EXAIR’s Atomizing Spray Nozzles were the right direction!
We ended up going with the AW8010SS Internal mix wide angle round pattern. And after playing with them the customer ran the nozzles at 5 PSIG air pressure and 10 PSI of liquid pressure. running the nozzle every 10-15 mins kept the room at the perfect humidity for the plants they are growing.
They are planning to install up to 20 of the AW8010SS Internal mix wide angle round pattern in each section of their facility once they build their building!
To discuss your application and how an EXAIR Intelligent Compressed Air Product can help your process and save you money, feel free to contact EXAIR and myself or one of our Application Engineers can help you determine the best solution.
Safety should always be a serious concern within industrial environments. Walk through any production facility and you should see all kinds of steps taken to give a safe workplace to the operators, contractors, and other team members. Whether this is through a sign showing PPE required to enter an area, an emergency exit sign, a safe walkway, or machine guards. Safety has become a standard that should never be lowered and there is good reason for that.
EXAIR designs all of our products to be safe and they meet or exceed OSHA standards that are directed toward compressed air safety. The first is to ensure that an operator or maintenance worker will not be injured through air impinging their skin should they come into contact with an EXAIR product. This OSHA standard is 29 CFR1910.242(b) claiming that all point of use compressed air products must be regulated to have less than 30 psig of dead end pressure. This directive is critical for worker safety and the way many blowoffs skirt by is to cross drill holes in the end of the blowoff.
Cross drilled holes may satisfy the dead end pressure standard but it does not address OSHA’s next important compressed air standard about noise exposure, OSHA standard 29CFR1910.95(a). The allowable noise level standard combined with 30 psig dead end pressure will render many home made or retail nozzles near useless because few, if any, meet both standards. Again, EXAIR has engineered and designed our Super Air Nozzles to permit 80 psig inlet pressure and still meet or exceed both of these OSHA standards so that the work can still be done by the operators while remaining safe and retaining their hearing.
For a better explanation and demonstration of how our nozzles meet these standards please see the video below.
While I use nozzles and cross drilled pipes as examples within this blog these safety features are designed into every product that EXAIR offers. This is due to the fact that OSHA, NIOSH, and the CDC do not delineate between a blow gun, blow off within a machine, or even a Cabinet Cooler System. If the device is powered by compressed air then the two key OSHA standard are in effect due to the inherit dangers of compressed air.
I encourage you now to walk through your facility and try to listen or spot compressed air points of use within your facility. Then, I ask you to call, chat, e-mail, or tweet an Application Engineer here at EXAIR and let us help you determine the most efficient and safest product to get the work done.
As an Application Engineer, I get the pleasure to speak to many companies about trying to find a simple, long-lasting, powerful but quiet transfer systems. They have operators that climb steps to dump bags of material in hoppers above. Or they need a compact way to remove scrap from their process. Or they have budgetary constraints to convey material from point A to point B.
If your company had to tackle any of these issues, EXAIR can help you. We manufacture Air Operated Conveyors that do not have any moving parts, are very compact in design, and have a high throughput capacity. They can attach easily to standard hoses, pipes, or sanitary flanges. These inexpensive conveyors are designed to make conveyance safer and ergonomically better for your operators. EXAIR calls this product line, Line Vac™.
Line Vacs use a small amount of compressed air to generate a vacuum by a Venturi effect. The unique design generates a high velocity to create a powerful vacuum on one side. Once the product reaches the throat area of the Line Vac, the compressed air will carry the product the rest of the way. The product can reach horizontal distances up to 100 feet (30 meters) and vertical heights up to 20 feet (6 meters). EXAIR manufactures a variety of Line Vacs in different sizes, styles, and materials. In this blog, I will cover our most powerful and abrasion resistant type, Threaded Heavy Duty Line Vac.
Threaded Heavy Duty Line Vacs are designed to convert regular piping into a powerful conveying system. They range from ¾” NPT to 3” NPT and can connect easily to PVC and steel pipe fittings. The construction is made from a hardened alloy steel to resist wear from abrasive bulk products like steel parts, sand, glass, ceramic, etc. The Threaded Heavy Duty Line Vac can create a higher vacuum level to pick up heavier objects as well as conveying larger volume of material.
When purchased as a kit, the Line Vac will come with a filter, regulator, and a mounting bracket. This adds overall value in mounting, controlling, and protecting the Line Vac for years to come. This simple device is a great product to use in rugged industrial applications, and with no moving parts, you will not have to worry about any motors or bearings prematurely wearing out.
If you need to convey heavy materials like steel shot or abrasive products, the Heavy Duty Line Vac could be a blessing for you. Not only can they transfer material safely and quickly, but they also will help ergonomically in saving the backs and knees of your operators. If you would like to discuss your conveying application further, please contact an Application Engineer at EXAIR. We may have a solution for you.
In positive-displacement type compressors, a given quantity of air or gas is trapped in a compression chamber. The volume of this air is then mechanically reduced, causing an increase in pressure. A sliding-vane compressor will consist of a circular stator that is housed in a cylindrical rotor. The rotor then has radially positioned slots where the vanes reside. While the rotor turns on its axis, the vanes will slide out and contact the bore of the stator wall. This creates compression in these “cells”.
An inlet port is positioned to allow the air flow into each cell, allowing the cells to reach their maximum volume before reaching the discharge port. After passing by the inlet port, the size of the cell is reduced as rotation continues and each vane is then pushed back into its original slot in the rotor. Compression will continue until the cell reaches the discharge port. The most common form of sliding-vane compressor is the lubricant injected variety. In these compressors, a lubricant is injected into the compression chamber to act as a lubricant between the vanes and the stator wall, remove the heat of compression, as well as to provide a seal. Lubricant injected sliding-vane compressors are generally sold in the range of 10-200 HP, with capacities ranging from 40-800 acfm.
Advantages of a lubricant injected sliding-vane compressor include:
- Compact size
- Relatively low purchase cost
- Vibration-free operation does not require special foundations
- Routine maintenance includes lubricant and filter changes
Some of the disadvantages that come with this type of compressor:
- Less efficient than the rotary screw type
- Lubricant carryover into the delivered air will require proper maintenance of an oil-removal filtration system
- Will require periodic lubricant changes
With the host of different options in compressor types available on the market, EXAIR recommends talking to a reputable air compressor dealer in your area to help determine the most suitable setup based on your requirements. Once your system is up and running, be sure to contact an EXAIR Application Engineer to make sure you’re using that compressed air efficiently and intelligently!
Photo Credit to Compressed Air Challenge Handbook
EXAIR will be giving away a free 2” Super Air Nozzle with the purchase of any EXAIR Line Vac from September 1st through October 31st, 2019. This special promotion will apply to all versions of Line Vac orders, whether aluminum, stainless steel, heavy duty, threaded/non-threaded, or 316SS sanitary flanged. Order within the promotional period and receive the free model 1122, a value of $65.00! The 2″ Flat Super Air Nozzle is more durable than plastic flat nozzles, operates at lower noise levels and produces a powerful blast of compressed air in a laminar sheet.
Line Vacs provide a fast, easy way to pneumatically transfer dry materials from one location to another. They eliminate the need to have personnel manually transferring materials via bag, super sac, or bucket-and-ladder setups. Doing so reduces worker fatigue and allows conveyance to occur simultaneously with other process operations.
Depending on application parameters such as bulk density of the material (lbs/ft³ or kg/m³), conveyance height/distance, and required conveyance rate, we can size a Line Vac properly through the support of our Application Engineers who have years of experience working with these products and their implementation into industrial solutions.
We’re here to help you find a pneumatic conveyance solution for your application, and earn a free nozzle in the process. Contact our Application Engineers for assistance today.
EXAIR currently offers a multitude of configurations when it comes to the Line Vac – air operated conveyors product line. One of the easiest to install and best suited for food, pharmaceutical, chemical or other sanitary environments is the Sanitary Flange Line Vac¯.
These are offered in four standard pipe sizes, 1-1/2″, 2″, 2-1/2″ and 3″. The models are only available from stock in 316 stainless steel. The sanitary flange is designed to be compatible with ISO 2852. These can easily be used with a “Tri-Clover” clamp and gaskets of varying materials to fit your needs. They have no internal moving parts and offer a compact, high throughput, quiet conveyance for parts, gases or ingredients.
With the sanitary flange design installation or removal are simplified in order to remove the unit for cleaning or reversing. If you would like to discuss just how easy these are to upgrade your existing system or to install into a new system, please contact an Application Engineer.