Tag: EXAIR_BF

Patented Nozzle is a 2016 Flow Control Magazine Innovation Awards Nominee!

Published on by Brian FarnoLeave a comment
No Drip Atomizing Nozzle
No Drip Atomizing Nozzle

The patented (no longer patent pending) EXAIR No-Drip Atomizing Spray Nozzles have been nominated and are a finalist in the Flow Control 2016 Innovation Awards.  The No Drip Atomizing Nozzles are just a portion of the entire Liquid Atomizing Nozzle products that EXAIR Offers.   The No-Drip’s patented liquid shut off valve design eliminates the need for a separate pilot air line to positively shut off liquid flow ensuring there are no drips or excess flow from the nozzle.  These are ideal when dealing with fine surface finishes, costly liquids, or intermittent spraying needs.  The nozzles are offered in both pressure fed liquid and siphon fed liquid versions.

For the pressure fed version, the nozzle will require both compressed air and a pressurized liquid source. Both pressures can be adjusted independently giving a large spectrum of adjustment to fine tune the spray pattern and droplet sizes.  The siphon fed nozzles can draw liquid up to 36″ vertically or be gravity fed up to 18″ overhead.  This makes installation quick and easy when a pressurized liquid source, or liquid pump is not at hand.

The No-Drip Atomizing Spray Nozzles have also proven themselves in many applications, you can even read about a few of them here on our blog, links below.

https://blog.exair.com/2013/11/13/no-drip-atomizing-nozzle-improves-deep-drawn-metal-process/

https://blog.exair.com/2016/03/22/atomizing-nozzles-have-added-benefits-that-can-really-help/

2013 Innovation Awards
2013 Innovation Awards

 

Some of the reasons the EXAIR No-Drip Atomizing Nozzles were selected for these applications are the patented no-drip valve, their ability to atomize liquids to a range of 22-71 micron droplet size, the ability to fit into a tight space as well as the many spray pattern options.   These features have ranked the nozzles as a finalist in Flow Control’s 2016 Innovation Awards.

We are very grateful if you choose to vote for our nozzle at the link below. Please vote.

http://www.flowcontrolnetwork.com/innovationawards/

Voting is only open through July 31, 2016.  We’ll make sure to keep you updated if we win!

Brian Farno
Application Engineer Manager
BrianFarno@EXAIR.com
@EXAIR_BF

EXAIR’s Cabinet Cooler Systems Cool Electrical Enclosures

Published on by Brian FarnoLeave a comment

One of the main focuses for Cabinet Cooler Systems is to cool electrical enclosures that are overheating due to inadequate cooling, failing air conditioners, or heat exchangers that are not performing due to high ambient conditions.  Another focus is the fact that the Cabinet Cooler Systems don’t require refrigerant based coolants, or fans that can move dirty ambient air into the cabinet. This is the portion I would like to focus on today.

If there are vents on the enclosure then these are sometimes covered with a filter media that is an easily forgotten maintenance item –  sometimes they are even removed.  This is an issue as it starts to allow the contaminants from the surrounding area to begin to enter the inside of an enclosure.  In case you have never seen a circuit board that is covered in oil mist and metal chips, it is terrifying to see a maintenance person that is trying to troubleshoot the machine for failures.  Not only does this present a fire hazard but it also presents the internals of the panel with a strong probability of failure.

Another item I have personally seen fail in the field are small fans mounted within enclosure vents to help circulate air through the enclosure.  This is a great idea if the ambient environment is climate controlled and has no dirt or debris in the air.   Even in a facility that is climate controlled there is still potential for airborne debris, dust, and contaminants to enter the cabinets. These are merely accelerated into the cabinet by the fan and distributed throughout the entire enclosure instead of just coming in and covering the area just inside of the vent.

The solution to all the problems above which can easily save thousands of dollars worth of damaged circuit boards or drives is an EXAIR Cabinet Cooler System.  The Cabinet Coolers will all provide a slight positive air flow within the enclosure and will help to keep those external ambient conditions out of the cabinet and away from valuable electronics.  Even with our thermostatically controlled systems (which turn on and off as needed to maintain internal temperature AND save air) we offer a Non-Hazardous Purge option which will permit a 1 SCFM flow of air through the Cabinet Cooler to always keep a slight positive pressure within the enclosure. When the cabinet needs to be cooled, it will open the solenoid valve and provide the full rate of cooling from the Cabinet Cooler System.  The Non-Hazardous Purge function is available for all three NEMA types of Cabinet Cooler Systems, 12, 4, and 4X.

NHP.PNG

If you would like to discuss the other benefits of utilizing EXAIR Cabinet Cooler Systems and which model is right for your enclosure, please contact us.

Brian Farno
Application Engineer Manager
BrianFarno@EXAIR.com
@EXAIR_BF

Consider these Variables When Choosing Compressed Air Pipe Size

Published on by Brian FarnoLeave a comment

Here on the EXAIR blog we discuss pressure drops, correct plumbing, pipe sizing, and friction losses within your piping system from time to time.   We will generally even give recommendations on what size piping to use.  These are the variables that you will want to consider when selecting a piping size that will suit your need and give the ability to expand if needed.

The variables to know for a new piping run are as follows.

  • Flow Rate (SCFM) of demand side (products needing the supplied compressed air)
  • System Pressure (psig) – Safe operating pressure that will account for pressure drops.
  • Minimum Operating Pressure Allowed (psig) – Lowest pressure permitted by any demand side point of use product.
  • Total Length of Piping System (feet)
  • Piping Cost ($)
  • Installation Cost ($)
  • Operational Hours ( hr.)
  • Electical Costs ($/kwh)
  • Project Life (years) – Is there a planned expansion?

An equation can be used to calculate the diameter of pipe required for a known flow rate and allowable pressure drop.   The equation is shown below.

A = (144 x Q x Pa) / (V x 60 x (Pd + Pa)
Where:
A = Cross-Sectional are of the pipe bore. (sq. in.).
Q = Flow rate (cubic ft. / min of free air)
Pa = Prevailing atmospheric absolute pressure (psia)
Pd  = Compressor discharge gauge pressure (psig)
V = Design pipe velocity ( ft/sec)

If all of these variables are not known, there are also reference charts which will eliminate the variables needed to total flow rate required for the system, as well as the total length of the piping. The chart shown below was taken from EXAIR’s Knowledge Base.

Piping
Airflow Through 1/4″ Shed. 40 Pipe

Once the piping size is selected to meet the needs of the system the future potential of expansion should be taken into account and anticipated for.   If no expansion is planned, simply take your length of pipe and start looking at your cost per foot and installation costs.    If expansions are planned and known, consider supplying the equipment now and accounting for it if the additional capital expenditure is acceptable at this point.

The benefits to having properly sized compressed air lines for the entire facility and for the long term expansion goals makes life easier.   When production is increased, or when new machinery is added there is not a need to re-engineer the entire system in order to get enough capacity to that last machine.   If the main compressed air system is undersized then optimal performance for the facility will never be achieved.   By not taking the above variables into consideration or just using what is cheapest is simply setting the system up for failure and inefficiencies.   All of these considerations lead to an optimized compressed air system which leads to a sustainable utility.

Brian Farno
Application Engineer Manager
BrianFarno@EXAIR.com
@EXAIR_BF

Video Blog: How To Clean & Replace Emitter Points for the Ion Air Gun & Ion Air Jet

Published on by Brian FarnoLeave a comment

This video will give a thorough walk-through on how to clean the emitter point on EXAIR Ion Air Jets model 8194 and Ion Air Guns model 8193.  This is the same procedure for replacing a damaged emitter point.  This procedure is for new style Static Eliminators with integrated grounded terminals, released on February 1, 2016.

Brian Farno
Application Engineer Manager
BrianFarno@EXAIR.com
@EXAIR_BF