Tag: backblow nozzle

Application Spotlight! – Back Blow Nozzle!

Published on by Jordan T ShouseLeave a comment

Last month I started doing an application spotlight. In these, I’m going to pull from the dozens of phone calls or emails and walk you through how we on the Application Engineering team select a product for a specific application!

A customer called in with a tricky application where they need to keep the ID of a bearing cool. Seemed like a simple application, something where an air amplifier or a Super Air knife would be ideal!

But this wasn’t a simple application. They were heating the OD up, so they could add a surface treatment. The radiating heat was causing the inner race to slightly deform, so they wanted to cool it down, while not interrupting the heating taking place on the OD. And an air amplifier or knife would cool the entire bearing down with its larger pattern of air.

So we had to come up with an off-standard use for one of our products, and the first thought was our Back Blow Nozzles. The bearing ID was 2″, so we went with a 1006SS as it’s rated from 7/8″ to 4″. It was located, so the air stream was aimed downward. The airflow was hitting the ID and bouncing off the plate that the bearing sat on and worked its way out the top. This limited the air flow around the OD to basically zero, so it didn’t affect the coating process! Below is a quick sketch I did with the customer on the phone. It shows a section of the bearing and the air flow that would come from the back blow nozzle!

In more common applications, such as blowing chips or debris forward out of a pipe, our selection of forward blowing nozzles work quite well. However, this may not always be possible. The pipe may be long, making it impossible to push the debris all the way down the pipe. The other end of the pipe may not be open or there could be some process or area to which it is attached that would become contaminated if debris were blown in that direction. In any of these scenarios, a Back Blow Nozzle is the right tool for the job. An array of holes located around the outside diameter of the Back Blow Nozzle head provides a powerful 360° airflow pattern that will pull and clear out any leftover coolant or chips ahead of it within a pipe from a machining or any other process.

From the easy ID blow out application to the tricky “off book” applications, the application engineering team here at EXAIR are here to help you select the right product for you!

Jordan Shouse
Application Engineer

Send me an email
Find us on the Web 
Like us on Facebook
Twitter: @EXAIR_JS

Bearing Photo courtesy of Patrick via creative commons

Pipe ID Clean out Made Easy With EXAIR’s Back Blow Safety Air Gun

Published on by Tyler DanielLeave a comment

In certain applications such as blowing chips or debris forward, out of a pipe or blind hole, may not be possible. The pipe may be long, making it impossible to push the debris all the way down the pipe, the other end of the pipe may not be open or there could be some process or area to which it is attached, that would become contaminated if debris were blown in that direction. In any of these scenarios, a Back Blow Nozzle is the right tool for the job. An array of holes located around the outside diameter of the Back Blow Nozzle head provides a powerful 360° airflow pattern that will pull and clear out any leftover coolant or chips ahead of it within a pipe from a machining or any other process.

m4BB2017_1670x574
Small 1004SS easily clears debris

EXAIR has three different size Back Blow Nozzles; the 1004SS (M4 x .5), the 1006SS (1/4 NPT), and the 1008SS (1” NPT). The 1004SS is recommended for use on pipes as small as ¼” and up to 1”. The 1006SS can be used for a wide range of pipe sizes, from 7/8” up to 4”. The 1008SS nozzle offers the greatest overall force for stubborn or sticky materials stuck to the inside diameter of the pipe. This nozzle is suitable for use in pipes ranging from 2”-16”. As the Back Blow Nozzle will be blowing chips and debris back out of the pipe towards the operator, it is always recommended that a Chip Shield is used. The strong, polycarbonate Chip Shield will keep an operator safe from flying debris and keep your company in compliance with OSHA directive 1910.242(b). For visual representation of the performance of the Back Blow Nozzle, take a look at this short video clip that demonstrates its use.

All of EXAIR’s Back Blow Nozzles are available with extensions. For the 1004SS we have extensions from 6”-36”, and from 12”-72” for the 1006SS and 1008SS. The Back Blow Nozzle can also be installed on our VariBlast, Soft Grip, Heavy Duty, and Super Blast Safety Air Guns. With such a wide range of available sizes and configurations, we can tackle just about any internal pipe cleaning application. If you have a process in your facility that may benefit from the use of one of these nozzles, give us a call and get one on order today!

Tyler Daniel, CCASS

Application Engineer
E-mail: TylerDaniel@exair.com
Twitter: @EXAIR_TD

EXAIR’s Heavy Duty Safety Air Gun’s: Powerful and Safe

Published on by Jordan T ShouseLeave a comment

EXAIR’s Heavy Duty Safety Air Gun is designed to provide powerful blasts of compressed air for use in rugged, industrial environments. With a larger 3/8 NPT air inlet compared to our other Safety Air Guns, it allows for higher force and flow values. It comes with a durable cast aluminum body and ergonomic composite rubber grip. The wide curved trigger allows for continuous use for hours without operators experiencing fatigue.

1350-6-CS – Heavy Duty Safety Air Gun with Model 1104 Air Nozzle, 6″ Alum. Ext Pipe & Chip Shield

All of EXAIR’s Safety Air Guns come with an engineered compressed air nozzle at the tip. This allows you to remain OSHA compliant while still getting the force you need to get the job done. EXAIR’s Super Air Nozzles utilize the coanda effect to entrain large amounts of ambient air from the environment. This ambient air mixes with the primary airstream and is projected towards the target with more force and flow than the supplied compressed air could deliver alone.

Compressed air goes in the back, as it exits the front ambient air is entrained in the total flow of air you are getting.

Each of the Safety Air Guns is available with extensions fully assembled ranging from 6”-72”. You can simply add a “-“ and the required length, in inches, to the end of any Safety Air Gun Model number.

Safety Air Gun Extensions

In addition, they’re also available with a Chip Shield to prevent any chips or debris from coming back toward your operators. Effective chip guarding is another component of OSHA 1910.242(b) in addition to the concerns of dead-end pressure. To add a Chip Shield onto the gun as well, a “-CS” to the standard Model number. For example, a Model 1310-12-CS would be a 1310 gun with 12” extension and a Chip Shield installed. If the application involves blowing off metal chips or shavings, your operators will certainly appreciate this Chip Shield preventing the debris from blowing back over them.

With EXAIR’s Heavy Duty Safety Air Gun, you can still achieve the high forces required for tough applications without the risk of injuries to personnel. Do yourselves and your operators a favor and get one on order today!

Jordan Shouse
Application Engineer

Send me an email
Find us on the Web 
Like us on Facebook
Twitter: @EXAIR_JS

Powerful, Efficient, and OSHA Compliant: EXAIR Super Blast Safety Air Guns

Published on by Russ BowmanLeave a comment

Earlier this year, EXAIR introduced the TurboBlast® Safety Air Gun. They offer the same performance as a number of our Super Blast Safety Air Guns, with some noteable features:

  • Nozzle Guard protects the Super Air Nozzle from damage that could be caused by incidental contact during use.
  • Gate Valve option for easy flow adjustment by the operator, with a simple twist of the ring!
  • Rugged AND comfortable elastomer grip with pushbutton trigger for optimal ergonomics.

These, combined with the features they share with our four most powerful Super Blast Safety Air Guns (high force, automatic shutoff, 3 and 6 foot extensions) make it one of the most innovative blow off products on the market today. With all that going for the TurboBlasts, we still want to emphasize that they’re offered as an enhancement to – and not a replacement for – the Super Blast line. Consider:

Super Air Nozzle Clusters. Because of the Nozzle Guard, Clusters aren’t offered with the TurboBlast products. Clusters concentrate their high force, powerful airflow on a smaller target area than comparable single Super Air Nozzles:

*Force measured at 12″ (305mm) from target. Sound level measured at 3ft (914mm). All measurements taken at 80psig (5.5 BAR).

Back Blow Nozzles. Also because of the Nozzle Guard, the Model 1008SS 1 NPT Back Blow Nozzle is offered on the Super Blast, but not the TurboBlast. It’s made for blowing out pipe with inside diameters from 2″ to 16″ (51-406mm):

EXAIR Super Blast Safety Air Guns fitted with our 1 NPT Back Blow Nozzles are available with 1ft (top left), 3ft (top right) or 6ft (bottom) extensions.

Spring-To-Close Ball Valve. While the ergonomic, pilot actuated pushbutton trigger on the TurboBlast Safety Air Guns is likely to be preferred in a number of situations, the full hand grip of the Super Blast Safety Air Gun’s ball valve proves to be more suitable for certain positions, like when the device is to be operated above shoulder height:

The ball valve handle essentially becomes part of the operator’s grip when using this Model 1215-3 Super Blast Safety Air Gun in an overhead space blow off application.

EXAIR is in the business of helping you get the most out of our products – and your compressed air system. If you have questions, I welcome the opportunity to help…give me a call.

Russ Bowman, CCASS

Application Engineer
EXAIR
Visit us on the Web
Follow me on Twitter
Like us on Facebook