Tag: liquid nozzles

Liquid HollowStream™ Cone Nozzles and Electrostatic Filters

Published on by johnball2014Leave a comment

A company was contracted to clean electrostatic filters used in a commercial building.  Electrostatic filters are designed to capture airborne particles to improve indoor air quality.  They are washable and reusable.  The capturing mechanism is a bit different than a typical furnace filter.  It is done by using an Ionizing wire to place a positive charge onto the particles as they pass by.  Then, the charged particles are collected on collection plates that are negatively charged.  Like magnets, opposite charges attract.  Over time, the particles will build up on the plates.  The electrostatic filters generally need to be cleaned monthly to remove the grime of smoke, dust, and allergens.  Once they are washed and dried, they can be placed back in the air ducts to start filtering again.

The contractor above used a cleaning solution to break down the contamination prior to rinsing and drying.  They had to be careful with the electrostatic filters as the ionizing wires that are used to charge the particles are very thin and prone to breaking.  If an ionizing wire breaks, it will not properly charge the particles and the filtration is reduced.  So, manually cleaning was very difficult to perform.  They contacted EXAIR to provide a solution. 

When it comes to liquid spraying, EXAIR has a new line of liquid atomizing spray nozzles; FullStream™ and HollowStream™ Cone Nozzles.  They are engineered to spin the liquid in order to break the surface tension.  Passing through a precision orifice; the liquid will break into fine particles.  Increasing the surface area will increase the liquid coverage on to a surface and reduce the amount of liquid required.  For this application, I recommended the model HL1011SS; HollowStream Cone Nozzle.  They were able to pass the electrostatic filters under the HL1011SS to clean the collection plates and ionizing wires.  The force of the liquid was enough to clean the surfaces without damaging the thin wires.  The contractor was so impressed by the effectiveness of the nozzle; he added the same nozzle to his rinsing system.  With the EXAIR HollowStream Cone Nozzle generating small water particles, he was able to save money by using less water. 

Here is a video with a residential electrostatic filter.

If you use liquids for washing, cleaning, or quenching; EXAIR has an effective and economical way to apply that material.  We offer different flowrates and port sizes.  The Liquid Atomizing Nozzles can handle liquid pressures up to 250 PSIG (17Bar) to get a hard-hitting force.  They are made from 303 stainless steel which is durable and corrosion resistance; and, they can withstand temperatures up to 800oF (427oC).  If you would like to discuss further the details of your liquid applications with an Application Engineer, we will be happy to hear from you. 

John Ball
Application Engineer
Email: johnball@exair.com
Twitter: @EXAIR_jb

Video by Grayfurnaceman on YouTube: Cleaning the electronic air cleaner

Step by Step Guide – Choosing Atomizing Spray Nozzles

Published on by johnball2014Leave a comment

EB1040SS

Atomizing spray nozzles atomize fluids to create a fine spray in a variety of patterns for a variety of uses. They are commonly used to mark products, paint or coat, cool, reduce dust, lubricate and clean parts.

With the numerous types of Atomizing Nozzles sold by EXAIR, it can be challenging to shift through all the information. We can help you to narrow down the field to quickly find the correct Atomizing Nozzle for your application.  In a summary, here are the basic questions that need to be answered:

1.) Are you using a pressurized liquid feed?

2.) What is the viscosity of the fluid?

3.) What is the liquid feed rate in gallons per hour (gph) or liters per hour (lph).

4.)  Should I use the No-Drip option?

EXAIR’s flow chart with easy-to-follow steps will walk you through the decision tree and land you at the best Atomizing Spray Nozzle for your application. In answering these simple questions, this chart will guide you to the correct page in our current catalog to get additional information and specifications.    Click on Link below to determine the best nozzle for you.

Step_by_Step-Atomizing_Spray_Nozzle_Picker

When it comes to spraying a fine mist, EXAIR has a great range of Atomizing Nozzles. If you follow the flow chart, you will get the best product to spray your liquid and reduce waste.   If you have any problems or questions, you can contact one of our Application Engineers at EXAIR.

John Ball
Application Engineer
Email: johnball@exair.com
Twitter: @EXAIR_jb

No Drip External Mix Atomizing Nozzle Wins Gold!

Published on by Dave WoernerLeave a comment

It is a very sad day for me at EXAIR… No, I’m not retiring or leaving the company, but today is my last day to write about Plant Engineering Product of the Year Awards …for this year. It has been quite an honor to write about four of our best innovations from the last year over the past weeks.  In case you missed the entries, you can click on the these links to read more about our other 2013 award winners: 316 Stainless Steel Dual Cabinet Coolers, 1 Inch Flat Super Air Nozzle or the Heavy Duty HEPA Vac. nodrip_EF Today’s post is about the No Drip External Mix Atomizing Nozzle, which the readers of the Plant Engineering magazine bestowed the gold award for fluid handling products.  EXAIR’s Liquid Atomizing Nozzles combine the liquid of your choice with compressed air to create a mist of atomized liquid.  The external mix nozzles have the highest liquid flow rate of any of EXAIR’s Liquid Atomizing Nozzles with flow rates up to 60 GPH.  They are a great solution for applications where independent air and liquid control is required.  Additionally, more viscous fluids can be used with the external mixing of the nozzle than either the internal mixing or siphon fed nozzles.  External Mixing Nozzles can be used to atomize liquids up to 800 centipoise. IMG_4031   In addition to the benefits of the external mix atomizing nozzle, this spray nozzle features a valve to positively stop liquid flow, when the compressed air drops below 30 psig. Any time you need to maintain a smooth finish or are spraying an expensive liquid, the no drip function can be invaluable to preventing rework, and ensuring a quality finish on each and every product.  The EXAIR no drip function is patent pending and does not require an additional air line to control the no drip mechanism, simplifying installation and functionality.

Dave Woerner
Application Engineer
Davewoerner@EXAIR.com
@EXAIR_DW

As Seen At The County Fair

Published on by Russ BowmanLeave a comment

Have you ever been in a public place and noticed one of your company’s products in full view of everyone passing by? Those of you who work for car manufacturers, soda bottlers, or snack food makers (like my three friends that I had this conversation with recently do) may not think it’s a big deal (my friends indeed didn’t), so you’ll have to forgive those of us who work mainly in industrial or commercial markets when we get excited to see something that came from The Shop, while we’re walking around the County Fair.

Years ago, I worked for an industrial weighing equipment company. Every year, we were asked to provide a scale for the County Auditor’s booth at the fair – people could step on this scale, and get their weight automatically printed out on one of the Auditor’s business cards. It was a neat little setup, and my friends who recognized that it came from my employer would all crack wise about how obviously inaccurate this scale was. Since I was the one who calibrated the scale, using test weights that I was responsible for having certified by the state, I knew that the numbers on those printed cards said a lot more about the availability of deep fried candy bars on the midway, than the intrinsic accuracy of our precision instrument.

When I go to the fair this summer (and I will, and not just for the deep fried candy bars), I’m certain it’ll be hot that day…which means I’ll have my eye out for the cooling stations that are always set up along the midway, providing a fine mist of cooling water. In addition to a brief respite from the summer heat, I’ll also be looking for EXAIR Atomizing Spray Nozzles, as this would be an ideal application for our External Mix Atomizing Spray Nozzles. They provide independent control of the liquid flow rate – which will be determined solely by the liquid supply pressure – and the air used to atomize the spray: varying the air pressure won’t affect the amount of liquid; only the size/shape of the flow pattern.

Depending on what you need to spray, how much (or little) of it you need to disperse, and over what kind of area, we also have highly efficient Internal Mix designs, and, if your liquid isn’t able to be pressurized, we have Siphon Fed Spray Nozzles as well.  We recently added No Drip options to all models as well, to conserve expensive solutions, and/or to prevent inadvertent stains, runs, etc.

They’re all available in a variety of narrow and wide angle, round and flat fan patterns. For more information, feel free to give us a call.

Russ Bowman
Application Engineer
EXAIR Corporation
(513)671-3322 local
(800)923-9247 toll free
(513)671-3363 fax
Web: http://www.exair.com
Blog: http://blog.exair.com/
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