EXAIR Chip Vac Systems For Durable, Quiet, and Effective Industrial Housekeeping

Back when typewriters were an author’s main tool, movies & TV shows would often show an author experiencing a condition known as “writer’s block”, sitting at his desk with a wastebasket overflowing with crumpled papers representing failures-to-launch of their latest work.

For you younger folks, a “typewriter” is a standalone word processor with an integral printer.

The reason I tell you all this, dear reader, is because I had a bad case of “writer’s block” going on with this blog until I had the pleasure of discussing Industrial Housekeeping Products with a caller from a major tire manufacturer. Their needs were typical – and familiar:

  • Electric powered shop vacuums did the job, but….
  • They’re loud.
  • They break down.
  • They can’t use them everywhere. Their safety rules say they’re not allowed to run them in areas where the floor, equipment, etc., gets wet. (That’s a good rule, by the way…electrocution is serious business).
  • They’ve got compressed air drops EVERYWHERE…maybe more common even than 115VAC receptacles.
  • Since it’s a tire plant, they’d be used to vacuum up exactly what you’d expect: scrap bits of rubber, ranging from shavings to pellet-sized chunks.

If they were using it for particularly dense or abrasive material, we’d have talked about the Heavy Duty Dry Vac. If it was for dusty materials (especially critical dust containment of toxic or hazardous materials), the Heavy Duty HEPA Vac would have been discussed. If liquid transfer was involved, we’d have talked about Reversible Drum Vacs, EasySwitch Wet-Dry Vacs, or Chip Trapper Systems. If it was for small jobs and something handheld was desirable, the Vac-u-Gun might have been worth a look (actually…more on that in a minute). But this was a “textbook” fit for a Chip Vac System – consider:

  • Compressed air powered – no electric motor to burn out.
  • No moving parts – supply it with clean air, and it’ll run darn near indefinitely, maintenance free.
  • Compressed air powered, part 2 – no risk of electrocution.
  • Quiet – at 77dBA, the Chip Vac is 50% quieter than typical electric vacs.
Whatever your needs, EXAIR has a Chip Vac System to meet them!

If you’ve got an open top drum, Model 6193 (55 gallon) or 6193-30 (30 gallon) comes with everything you need for a basic setup. Model 6293 (or 6293-30) adds a Drum Dolly and Tool Holder. Or, for a complete system, ready to go right out of the box, Model 6393 (55 gallon), 6393-30 (30 gallon) or 6393-110 (110 gallon) adds the Drum, a 20ft compressed air supply hose with shutoff valve & gauge, and upgrades to a Static Resistant Hose and Heavy Duty Aluminum Tools. For smaller jobs and/or if space is a premium, Model 6193-5 comes with a 5 gallon container, and Model 6293-5 adds a drum dolly to that.

This automotive plant has a number of Model 6193-5 Mini Chip Vac Systems strategically located for frequent and quick cleanup jobs.

And, by taking advantage of our current promotion, they’re getting a free Vac-u-Gun with their order (I told you we’d be back to that).

Get a FREE Vac-u-Gun with any qualifying Industrial Housekeeping Product order through April 30, 2022! Click here for details.

If you’ve got Industrial Housekeeping problems, EXAIR has a wide range of quiet, safe, and efficient solutions. To find out more, give me a call.

Russ Bowman, CCASS

Application Engineer
EXAIR Corporation
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“Typewriter” courtesy of Ryan Adams  homedust.com Creative Commons attribution license.

Intelligent Compressed Air: What You Need To Know About Deliquescent Dryers

Moisture free air is a “must” for industrial use, for a number of reasons:

  • An awful lot of distribution systems incorporate iron pipe. It’s inexpensive, readily available, easy to work with, rated for pressure, and has a long history of successful installations. Iron pipe will also oxidize (make rust) in the presence of water:
Here’s what we find a lot of the time inside a Reversible Drum Vac that’s been sent in for refurbishment because it’s not drawing effective vacuum anymore.
  • Regardless of what your distribution lines and components are made of, water droplets can erode them. Compressed air itself is a gas; it follows the curves in elbows, and flows around valve discs & regulator diaphragms. Water droplets, on the other hand, run full speed INTO those things, often at high velocity. This eventually causes pitting, which is bad enough…those pits, though, are little pockets for salts, acids, or alkalines to effect their destructive little chemical reactions.
  • When used for blow off applications, anything in your compressed air will get on anything you’re blowing off. If the intent is to remove moisture from a surface, moisture in your compressed air supply decidedly works against your goal.
  • Water can freeze as it is carried along with air flow through orifices. This can quickly block the flow of air. The US Navy lost a submarine, USS Thresher (SSN-593) and all hands in 1963. A number of factors contributed to the sinking, but a significant one was that compressed air being blown into the ballast tanks (to create negative buoyancy) had higher than permissible moisture content, and froze in orifice plates in the lines. The ballast tanks stayed full of water, and 129 sailors & shipyard personnel died as the boat passed crush depth.

There are a number of types of air dryers that are commonly fitted to industrial air compressors to take care of moisture problems. The least expensive one of these is the Single Tower Deliquescent Dryer. Here’s how they work:

Deliquescent dryer: how it works (1)
  • Incoming compressed air enters near the base, where a form of mechanical separation occurs…the air flows back & forth, around trays of desiccant.  The simple act of changing direction causes some of the water to just fall out and collect in the bottom.
  • The air then flows upwards through the desiccant bed. The desiccant in a deliquescent dryer absorbs moisture (as opposed to the adsorption that occurs in a regenerative desiccant dryer) until they get so wet, they dissolve.
  • After the desiccant does its job, moisture free air flows out the top, and gets on with it’s work.

In addition to the low price tag, other things to like about them are:

  • Low pressure drop.
  • No moving parts or electrical components.
  • Can be used outdoors, and in hazardous, mobile, dirty, or corrosive environments.

Of course, there are things to NOT like about them as well:

  • Limited suppression of dew point – because they are drying the air to a specific relative humidity, as opposed to a specific dew point, the attainable dew point is dependent on the incoming air temperature, the chemical composition of the desiccant salt, and the ambient temperature where it’s installed. Unless you use some sort of specialty salt desiccant, the typical dew point is only 20-25ºF lower than the air inlet temperature.
  • Desiccant carryover – speaking of those specialty salts, they’re even more corrosive than the basic sodium chloride that’s often used. Any carryover will wreak havoc on your distribution system and air operated devices.

Deliquescent dryers’ particular set of “pros and cons” presents challenges for their use in industrial settings, for sure. But if the primary concern is preventing pipes from freezing up, then their low cost, low maintenance, and simplicity make them a great choice.

At EXAIR Corporation, we’re keen on compressed air efficiency. The attention to detail we pay to our products – from design, to manufacturing & assembly, to availability, and right on through to technical support – bears out our commitment to helping you get the most out of your compressed air system. If you’ve got questions, we can talk about this all day long…and most of the time, we do. Give me a call.

Russ Bowman, CCASS

Application Engineer
EXAIR Corporation
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Image courtesy of Brian S. Elliott, Wikimedia Commons Creative Commons Attribution-Share Alike 4.0 International License

Big Nozzle, Big Award…Again!

The year was 2016, and it was quite a time for sports fans:

  • Team USA dominated at the Summer Olympics in Rio de Janeiro. Swimmer Michael Phelps won five Gold Medals, and gymnast Simone Biles won a Gold Medal on her own, and another for the team event, contributing to the 46 total Gold Medals won by United States Olympians.
  • The Chicago Cubs and Cleveland Indians took the World Series to all seven games…and extra innings in Game Seven. That makes it hard to disparage either team, but the Cubs prevailed, winning the Fall Classic for the first time in 108 years.
  • World Series heartbreak notwithstanding, Cleveland sports fans were pretty happy a few months earlier when the Cavaliers cinched the NBA Championship in seven games, defeating the heavily favored Golden State Warriors…who beat the Cavs in both of their regular season games that year.

Another big winner (non-sports) that year was EXAIR Corporation’s Model EF5010SS External Mix Narrow Angle Flat Fan Pattern 1/2 NPT Atomizing Spray Nozzle…it won Plant Engineering’s Product of the Year Bronze Medal Award in the Fluid Handling category. Yes, there’s a Compressed Air category, and our products have won a TON of those too…as well as some other categories:

  • Material Handling (Line Vacs)
  • Maintenance Products (Super Air Nozzles)
  • Environmental Health (High Lift Reversible Drum Vac)
  • Automation & Controls (EFC Electronic Flow Control)
Just a few of our past Product of the Year award winners in categories other than “Compressed Air”.

Anyway, now it’s 2021, and the No-Drip version of that Atomizing Spray Nozzle – Model EF6010SS – has won Plant Engineering’s GOLD Medal Award in the Fluid Handling category. Model EF6010SS offers the same performance as the EF5010SS:

  • Liquid flow rates from 141 to 303 gallons per hour (tested with water)
  • Flat fan spray dimensions from 15″ wide (6″ from target) to 25″ wide (15″ from target)
  • Atomized spray at a distance of up to 35 feet away

And, of course, the No-Drip feature means you can instantly stop liquid flow by shutting off the compressed air supply, up to 180 cycles a minute, if needed. This is a great feature to have to cut down on the cost – and the MESS – associated with overspraying.

Our comprehensive line of Atomizing Spray Nozzles has options for most any liquid that can be sprayed, with a wide range of flow rates and pattern size/shapes. The 1/2 NPT External Mix Narrow Angle Flat Fan model is ideally suited for liquids with higher viscosities where a higher flow rate/thicker coating is needed, as opposed to a humidification or misting application, where a smaller Atomizing Spray Nozzle might be specified. Some current, successfully reported, applications include:

  • Snack food provider – applying flavoring to bulk snack materials.
  • Commercial bakery – spraying cooking oil onto pans used in a conveyor oven.
  • Sporting goods manufacturer – applying adhesive to the tops of skateboard decks to glue the grip tape on.

If you’d like to discuss a particular liquid spraying application, I’d love to help…give me a call.

Russ Bowman, CCASS

Application Engineer
EXAIR Corporation
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The Case For The High Lift Reversible Drum Vac

If you need to fill -and empty – a drum with water, or water-like liquid quickly and easily, there’s really no quicker – or easier – way to do it than the EXAIR Reversible Drum Vac.  They’ve been around for decades, and are successfully used in a wide variety of applications.  The Reversible Drum Vac pulls a -96″H2O suction head on a 5, 30, 55, or 110 gallon drum, which makes it ideal for a number of typical Industrial Housekeeping or fluid handling applications.

EXAIR Reversible Drum Vac Systems come in a variety of sizes and configurations to meet the needs of most any application.

In cases where the liquid has a higher viscosity, or is below grade, the High Lift Reversible Drum Vac was developed with those exact situations in mind.  It generates a -180″H2O suction head, and comes with a 20ft vacuum hose.  Since its introduction, the High Lift Reversible Drum Vac has been successfully implemented in numerous uses where the extra suction head has been key:

  • A maker of bottled condiments (think barbecue sauce- or ketchup-like consistency) uses them to clean up accidents when bottles are overfilled, or a conveyor malfunction results in dispensing a bottle’s worth of condiment when there’s not a bottle under the nozzle.  The 20ft hose gives them the reach to service several production lines from one centrally located drum, and the two way pumping action allows them to easily pump the drum into their waste collection system.
  • A precast concrete company uses one for various cleanup applications.  The High Lift RDV‘s suction head is needed, in particular for their hydraulic oil leaks & spills.
  • A ferry operator uses one to clean out the engine room bilge.  They put the High Lift RDV on a deck above the engine room…the 20ft hose extends down to the bilge to pump it out, and when the drum is full, it reaches to the main deck so the drum can be emptied into their waste recycling company’s receptacle.
  • A construction company uses one to clean up the slurry created during concrete cutting operations.  The High Lift RDV is able to keep up with the slurry from even their largest saws, and the 20ft hose allows them to keep the drum conveniently out of the cutting area.

EXAIR High Lift Reversible Drum Vac Systems come in different configurations for 30, 55, or 110 gallon drums.

EXAIR Corporation has a variety of Industrial Vacuums to meet most any cleanup need.  They’re all compressed air operated, which means they have no electric motors to burn out, or moving parts to wear out.  If you’d like to find out more, give me a call.

***Order before 5/31/2021 and get a FREE Vac-u-Gun with any qualifying Industrial Vacuum System purchase***

Russ Bowman, CCASS

 

 

 

Application Engineer
EXAIR Corporation
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