What’s Wrong With My Reversible Drum Vac? Most Likely – Nothing.

If you need to clean up spills, pump out a sump, or basically just move liquid from one place to another, the EXAIR Reversible Drum Vac is what you’re looking for.  The Model 6196 Reversible Drum Vac System is all you need to turn a closed top steel drum into a powerful two-way pumping system. They’re reliable (no moving parts), durable (stainless steel construction), safe (no electricity), they install quickly, they’re compact, and portable. They’re also very low maintenance…in fact, if you supply the Reversible Drum Vac with clean air, it’ll run maintenance free, darn near indefinitely.

That’s not to say things can’t go wrong…Murphy’s Law still applies…but most anything that can go wrong with the EXAIR Reversible Drum Vac can be identified fairly easily, and remedied fairly quickly. Here’s a rundown of “the usual suspects:”

  • Vacuum leaks.  Even small leaks can be a big problem…a crack or split in the hose, a worn hose cuff, a damaged seal, even a hairline crack in the drum or lid…if air can enter anywhere other than the suction end of the hose, vacuum performance can suffer.  The first thing to do in most any troubleshooting procedure is a visual inspection, and the Reversible Drum Vac is no exception.  We stock the gaskets for the vacuum hose quick connect, as well as the drum lid seals.
Make sure the gasket is clean, in good condition                  The hose cuff should fit snugly on the quick connect
and properly seated.                                                                                             elbow’s barbs.
Pay particular attention to drum lid penetrations.               The drum itself can also be susceptible to corrosion.
All EXAIR Industrial Vacuum drum lids come with an EPDM seal glued in place. If it gets rolled (center) or damaged (right) it’ll need to be replaced to ensure optimal vacuum performance.
  • Compressed air supply, part 1. There are some tight passages in the  Venturi chamber inside the Reversible Drum Vac; this is how the vacuum is generated.  Any contaminants such as dirt or rust can accumulate in these passages, hampering the ability to draw its rated vacuum levels.
    Actual photos of dirt, debris, and contamination we’ve found in Reversible Drum Vacs sent in for Factory Refurbishment Service (ask an Application Engineer for details.)

    Use of a Filter Separator (like our Model 9004 Automatic Drain Filter Separator) with a 5 micron particulate element is recommended.  If the Reversible Drum Vac does get dirty inside, though, it can be cleaned pretty easily…here’s a video that walks you through the process:

  • Compressed air supply, part 2.  The Reversible Drum Vac will produce rated performance when supplied with compressed air at 80psig.  Make sure you can get enough air to it; if your supply line is too long and/or too small in diameter, you’ll get line loss…and poor performance. Use a 3/8″ ID compressed air hose, or a 1/2″ ID if it’s longer than about 10 feet, and avoid any restrictions like quick connect fittings.
  • Compressed air supply, part 3.  If you want to fill the drum a little faster, you can increase the supply pressure to 100psig or so.  Too high of a supply pressure can actually degrade vacuum performance, though.  Excessive pressure can create enough flow to overwhelm the Venturi, hampering its ability to generate vacuum.
  • Safety Shutoff Valve Float.  The Reversible Drum Vac provides overflow prevention via a plastic float that rises when the drum is full.  This breaks the vacuum so that no more liquid can be pumped into a full drum.  When the float rises, you’ll hear a change in pitch.  If you hear this, and the drum isn’t full, remove the Reversible Drum Vac from the drum lid and turn it upside down/right side up a few times.  The float should move freely, all the way from the bottom to the top of its chamber.  If it doesn’t, remove it and make sure the float, o-ring, and the inside of the chamber are clean.  Certain chemicals can cause the float and/or o-ring to swell, which will impede its free movement.  If the body of the Reversible Drum Vac is damaged (pro tip: don’t drop it) that can also cause the float to hang up and not work properly.
If the float doesn’t move freely, remove it (snap ring pliers not included,) clean and reassemble.

Like I said, these are just the first things you want to look for, and it’s highly likely you’re going to solve the problem before you reach the end of this list.  If your Reversible Drum Vac (or any EXAIR product) isn’t giving you the results you’re looking for, though, don’t hesitate to call an Application Engineer.  Chances are, the vacuum unit is just fine and just needs a fresh gasket, a little cleanup, or a new drum. We want to make sure you get the most out of our products.

Russ Bowman
Application Engineer
EXAIR Corporation
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Deep Hole Vac-u-Gun – Blow Chips Loose and Vacuum Them Away in One Step!

Last week, we looked at the Vac-u-Gun, and you can take a look at that blog here.

This week I wanted to present the Deep Hole Vac-u-Gun, a special iteration of the Vac-u-Gun, designed to provide a solution to the troublesome process of cleaning cavities and drilled holes.

The Deep Hole Vac-u-Gun is a low cost solution to quickly remove chips and debris from grooves and drilled holes where blow gun could create potentially hazardous flying debris. The Deep Hole Vac-u-Gun is simply positioned over the hole, and the trigger squeezed and then a small blow tube delivers a a stream of air to dislodge and lift the chips while the large suction tube vacuum them away. The operator is protected form flying debris since all chips and debris is contained within the clear suction tube. The device is capable of cleaning holes up to 1-1/4″ (32mm) diameter and 18″ (457mm) deep!

How does the Deep Hole Vac-u-Gun work?

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How the Deep Hole Vac-u-Gun Works

 


Compressed air, normally 80-100 PSIG (5.5 – 6.9 bar), flows through the inlet (1) into an annular plenum chamber (2) when the trigger is pressed. A small amount of air is injected into the blow tube (3) to provide agitation and lift to the chips or debris. The larger airflow is injected into the the throat of the gun through directed nozzles (4). The jets of air create the vacuum at the intake (5) which draws the material in and accelerates it through the unit. The chips, debris or other particulates can then be exhausted into a filter bag or hose attached to the Deep Hole Vac-u-Gun System.


 

We have found many applications where the Deep Hole Vac-u-Gun is beneficial- including removing chips and debris in:

Holes in fixtures, drilled plastics, T-slots’groove cleaning , coolant evacuation from parts, woodworking, tapped holes, cavity evacuation, and many more!

There are many advantages to the Deep Hole Vac-u-Gun, and some are:

Low cost, no moving parts/maintenance free, durable die cast construction, eliminates shock hazard – no electricity, meets OSHA pressure requirements, safe operation – no flying chips, lightweight and portable, and quiet.

The Deep Hole Vac-u-Gun uses less compressed air than ordinary blow guns, and the amplified output flow is 12 times the air consumption rate.

Deep Hole Vac-u-Gun Specifications

Note that the Deep Hole Vac-u-Gun should not be operated without a filter bag or vacuum hose attached to the exhaust.

There are three (3) Deep Hole Vac-u-Gun System options-

Deep Hole Vac-u-Gun Systems

The Model 6094 is the Deep Hole Vac-u-Gun only.

The Model 6194 comes with a reusable bag and clamp for debris collection.

The Model 6394 comes with the reusable bag and a 10′ (3m) section of vacuum hose for transferring the debris to a collection point.

If you have questions about the Deep Hole Vac-u-Gun or any of the 16 different EXAIR Intelligent Compressed Air® Product lines, feel free to contact EXAIR and myself or any of our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

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Threaded Line Vacs: Low Cost Conveyor Uses Ordinary Pipe!

EXAIR’s Threaded Line Vac air operated conveyor takes an ordinary pipe and converts it into a powerful conveying system.  A fast, low cost way to convey items such as pellets, scrap trim, bulk solids, chips, paper, small parts, sawdust, granules, and so much more. The Threaded Line Vac attached easily to plumbing pipe couplers, like PVC or iron, making it easy to build a complete system with parts readily available from your local supply house or hardware store.

The Threaded Line Vac are ideally suited for conveying large volumes of materials over long distances.  Like the standard, smooth bore ended Line Vacs, the unit works by ejecting a small amount of compressed air to produce a vacuum suction on the inlet side and a high output flow from the outlet side.  By using a pressure regulator to control the compressed air supply pressure, the rate of conveyance can be controlled to match the application needs, while minimizing the compressed air usage.

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Models are available from 3/8 NPT to 3 NPT with materials of construction of aluminum and types 313 and 316 stainless steels (excellent corrosion resistance.)  High temperature versions of the stainless steel Threaded Line Vacs are available as well, for temperatures up to 900°F.

For those processes requiring the highest rates of conveyance over the longest distances and/or the most abrasive of materials, the Heavy Duty Threaded Line Vac is the right choice.  Designed with the most rugged industrial processes and applications in mind, the special hardened alloy construction helps prevent premature wear that could occur with standard aluminum or stainless steel models, under the harshest of conditions.  The performance has been boosted, to be able to convey more material, over longer distances and higher vertical rises.

HDLV

To select the right model, information regarding these criteria is helpful-

  • Size of parts and bulk density of material being conveyed
  • What size hose, tube, or pipe is desired
  • Target conveyance rate
  • Distance of conveyance, both horizontal and vertical legs
  • Preferred material of construction

For another look, please see the video available that provides more details about the Line Vac family.

If you would like to talk about Line Vacs or any of the EXAIR Intelligent Compressed Air® Products, feel free to contact EXAIR and myself or one of our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

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Coast to Coast and Beyond

Recently, I was working with  a customer looking for a Premium Reversible Drum Vac and wanted it shipped to the Northwest Territories of Canada –  which we could do!  It got me to thinking, what are the farthest US state and territory locations EXAIR has shipped to in the North, South, West and East directions.  I ‘scoured’ the records and came up with these.

Furthest North- We have shipped to Prudhoe Bay, Alaska.  Most recently, believe it or not, we shipped a NEMA 4X Cabinet Cooler to an Oil and Natural Gas Exploration Company.  Goes to show that even the coldest environments still have the need to provide cool, clean, dry air to cool and protect electronics in electrical enclosures.

Furthest South – We have shipped to the US Territory of Puerto Rico, city of Santa Isabel.  An Aerospace company needed a strong, laminar blast of air and utilized a 6″ Stainless Steel Air Knife.  An Air Knife offers a quiet, efficient way to clean, dry or cool parts, webs, or conveyors.

Furthest West- We have shipped to the US Territory of Guam.  The local University ordered a model 1111-4 Super Air Nozzle Cluster, for a good strong blast of air flow for a cleaning operation.  The model 1111-4 delivers 3.2 lbs of force, at just 82 dBA of sound. A safe and efficient nozzle for blowoff operations.

Furthest East- We have shipped to Eastport, Maine.  The customer in Eastport ordered a Line Vac and a section of Conveyance Hose.  The Line Vac is a great tool for conveying large volumes of material over long distances, through a standard hose or tube.  The compact design features large throat diameters for maximum throughput capability.

 

It was interesting to look back and see all the places that EXAIR has shipped.  We have customers from all over the globe. If you are outside the of 50 US States and Canada, we have a dedicated team of International Application Engineers that will work with you to select the best EXAIR product for your process and application, and direct you to your local International Distributor.

If you would like to talk about any of the EXAIR Intelligent Compressed Air® Products, feel free to contact EXAIR and myself or one of our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

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E-Vac Vacuum Generators- For More Than Just Pick and Place

A textbook application for vacuum generators is the ‘pick and place’ function.  With ever increasing automation and robotic cells, more and more opportunities present themselves to utilize the E-Vac Vacuum Generator as a part of the system to ‘pick up’ an object and ‘place’ it in a new position. But the E-Vac’s can be used for many more types of applications.

evac_models (2)
In-Line E-Vac

Another popular usage is to hold something in place. One of our customers uses an array of Adjustable E-Vacs to pull a vacuum and hold down various sizes of Styrofoam sheets during a machining operation. The previous system was a 1 hp blower type, and did not offer any flexibility for handling different size sheets. Sheets would slip and produce off quality results. After installing the new design, the system was able to handle any size sheet, and scrap levels went down dramatically.

adjustable_evacs (2)
Adjustable E-Vac

A unique implication that was solved with an E-Vac was to deflate sporting balls.  The customer printed custom logos, and preferred the items to be flat for the printing operation. Using a commercial grade electric shop vac didn’t completely deflate the balls, and motors burned out often.  Using a low vacuum In-Line E-Vac with a quiet Straight Through Muffler, the customer can now quickly and quietly, fully deflate the balls.

Another popular use for the E-Vac is to pull a vacuum for drawing up liquids or gases. A customer that manufactures automotive seats was having issues with the process, where the expanding foam was producing a gas, and the gas would produce pockets and voids in the foam after setting.  The customer used a model 800017 In-Line E-Vac to create a vacuum inside the mold and draw off the gas, eliminating the pockets and the voids in the final product.

Lastly, as I am big fan of recycling, anything and everything, we worked with a customer that recycles the old CRT style of computer monitor  (remember those?) The housing would be sawed in half, so that access to the internal components could be made. Because of the variability in the size and shape of the monitors, the customer was using an adjustable chuck system, which took time to set-up for every monitor, each being a bit different. To speed up the process, an EXAIR In-Line E-Vac and 5″ Suction Cup was implemented, and the monitor held in place by the screen, which was was very consistent in shape from monitor to monitor. This change reduced the set-up time required.

These and other Applications for the E-VACs and all other EXAIR products can be found on the EXAIR website on the Products page, under the Related Info section toward the bottom of each page.

If you have questions regarding E-Vac Vacuum Generators or any EXAIR Intelligent Compressed Air® Product, feel free to contact EXAIR and myself or one of our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

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FREE Vac-U-Gun Offer!

A couple weeks ago I wrote a blog titled, Spring Cleaning All Around, outlining just a few of the many  features of our Industrial Housekeeping Products. All of these products are compressed air operated, have no moving parts and require no electricity, making them a safe and virtually maintenance free option for industrial clean up.

We are currently running a promotional offer, where if you purchase one of these products by May 31, 2015, we will include a FREE Vac-U-Gun, a $98 Value!!! (Use the promotional model number within the promo to receive the offer).

Vac-U-Gun Promo
Just click the photo for the promotional Model #

The Vac-u-Gun can be used as a blow gun, vacuum or for product transfer. Using only 13 SCFM @ 80 PSIG of compressed air, the unit produces a high output airflow on one end and creates a vacuum on the other end. In blow off mode, the unit provides 9 ounces of high velocity, forceful airflow. By changing the orientation of the nozzle insert, the unit can be converted into vacuum mode, producing -29.5″ H20 vacuum, use the bag attachment for general clean up. The output end can be connected to an 1-1/4″ smooth bore hose, allowing for the transferring of dry media. Again, there are no moving parts or electricity required to operate, so you get the convenience of 3 separate tools all in one single, safe hand held device!

Vac-u-Gun orientation
Simply change the nozzle insert orientation to quickly change between blowoff mode or vacuum mode.

Of course, if you need any assistance with selecting the right Industrial Housekeeping Product, you can always contact an application engineer.

Justin Nicholl
Application Engineer
justinnicholl@exair.com
@EXAIR_JN

Spring Cleaning All Around

Now that Spring is officially here, my “honey-do” list has grown quite substantially as of late. Besides all the work we’ve done inside the house, moving our first son to his new room and putting the nursery back together for our second’s arrival, we now need to focus on the outside of the house (of course this is what my wife thinks is the #1 priority and hey, she is 9 months pregnant so I am going to agree!).

Spring Cleaning
They way I felt over the weekend!

First on the list is pressure washing the siding and since we were expecting temperatures near 65° this past Saturday, I wasn’t going to mind being outside. One problem though, the pressure washer was buried in the garage behind plastic tubs of old baby clothes (thank goodness we held on to these), bicycles, bags of old toys/clothes for donation and every other thing we’ve “needed to hang on to”, which meant that I was going to need to clean the garage before I could clean the house. Adding another item to the already lengthy, spring-cleaning list.

Are you looking to do some clean up around your facility? If so, EXAIR has you covered with our Industrial Housekeeping Products. ALL of these units are compressed air operated and require no electricity to operate so there are no motors to wear out or moving parts, making them virtually maintenance free!

For liquid only clean up, we offer 3 different products:

Reversible Drum Vac – attaches to any standard 30, 55 or 110 gallon closed head drum. Capable of empty or filling a 55 gallon drum in less than 2 minutes.

High Lift Reversible Drum Vac – Up to 15’ of vacuum lift and able to empty or fill the same 55 gallon drum in 85 seconds

Chip Trapper – incorporates the Reversible Drum Vac to filter solids from liquid and traps them in a reusable filter bag. The unit can they be turned into a pump to empty the filtered, clean liquid back to a tank or reservoir.

For dry materials, we offer 3 different products as well:

Chip Vac – Used for vacuuming wet or dry chips and deposits them into a steel drum.

Heavy Duty Dry Vac – Similar to the Chip Vac but made of hardened alloy construction for abrasion resistance and a higher vacuum rate.

Heavy Duty HEPA Vac – Used in dusty environments to filter contaminants to HEPA standards while providing the same high vacuum rate.

For help selecting the right product for your application, give us a call at 1-800-903-9247.

Justin Nicholl
Application Engineer
justinnicholl@exair.com
@EXAIR_JN

 

Comet Cleaner image courtesy of garlandcannon. Creative Commons License