Tag: hot

Where Would You Use a Large Stainless Steel Nozzle and Why?

Published on by Neal RakerLeave a comment

This is a question that we are sometimes asked by clients who look at our complete Air Nozzle range and see that we have everything from the tiniest M4 nozzle up to some really large ones that fit a 1-1/4” steel pipe. So, what would you use model 1114SS for anyway?

I just so happen to have a perfect scenario for you as described below.

A recent customer inquired with me about some method to blow off large diameter electrode holders for a furnace application. For those of you who do not know, furnaces used to smelt aluminum, zinc, steel and other alloys tend to be very hot and dirty places.

Furnace

Being as such, a lot of debris tends to collect on horizontal surfaces including those of the electrode holders themselves.

electrode holder

What happens is dirt and dust are building up on the top of the holder and when it is opened it is becoming trapped between the holder and electrode causing arcing to go on inside the holder. The environment the solution will need to work in runs about 1500 – 1600°F. The area immediately around these holders is even hotter. So any nozzle placed in that environment will need to be able to withstand that temperature.

The solution: (3) model 1114SS (1 NPT Stainless Steel Super Air Nozzles) are placed in a triangular configuration to blow all the debris off of the top surface of the holder and electrode prior to opening to completely eliminate the arcing problem that had been occurring.

The key to the solution was to have an effective force generating nozzle that could project maximum force at distances well over 2 meters from a target and do so in a very hot application.

So, now you have one very good idea of how and where the larger Stainless Steel Super Air Nozzles can be used.

Neal Raker, Application Engineer
nealraker@exair.com

NEMA What?

Published on by Brian FarnoLeave a comment

With the Summer heat beating down most of the nation this week and the calls for Cabinet Cooler Systems are like the temperatures, through the roof, I thought it would be good to discuss the different NEMA types.  EXAIR offers our Cabinet Cooler Systems in three different NEMA types, 12, 4, and 4X.  Below is a description of what each is suitable for.

NEMA Type 12

NEMA Type 12 enclosures are general purpose use enclosures.  These are designed for indoor use and are designed to provide protection against dust, falling dirt, and dripping non corrosive liquids.  This is generally what the enclosures on most metal-cutting machines are rated.  These enclosures are only available for non-hazardous areas.  An enclosure with a NEMA Type 12 may or may not have a gasket seal on the door and on all electrical knockouts.  The EXAIR NEMA Type 12 Cabinet Cooler Systems for these units are available in cooling capacities from 550 – 5600 BTU/hr. along with continuous operation or thermostat control, non-hazardous purge, high temperature operation, and with the EXAIR Electronic Temperature Control.

NEMA Type 4

NEMA Type 4 enclosures are designed to be watertight / weatherproof.  These enclosures are not corrosion resistant but they are able to protect the inside of the enclosure from  a minimum of 65 GPM from a 1″ nozzle delivered from a distance of 10′ for 5 minutes.  These are found in wash down areas where Stainless Steel is not needed along with outside where corrosion is not a concern.  These units can be used on a NEMA Type 12 enclosure for added protection against oil or dirt in the air.  The EXAIR NEMA Type 4 Cabinet Cooler Systems are available in cooling capacities from 550 – 5600 BTU/hr. along with continuous operation or thermostat control, non-hazardous purge, high temperature operation, and with the EXAIR Electronic Temperature Control.

NEMA Type 4X

NEMA Type 4X enclosures are designed with the same specifications as a NEMA Type 4 enclosure with the addition of corrosion resistance.   This means the enclosure must be sealed against wash down and be resistant to corrosion.  The corrosion can come from a chemical or environmental conditions such as a food process wash down or outdoors near the ocean such as on an oil rig or ship dock.  The EXAIR NEMA Type 4X Cabinet Cooler Systems are available in cooling capacities from 550 – 5600 BTU/hr. along with continuous operation or thermostat control, non-hazardous purge, high temperature operation, and 316 stainless steel.

If you have a questions about which EXAIR Cabinet Cooler System is the best fit for your enclosure or you need help sizing the system, feel free to give us a call.  You can also find our Cabinet Cooler Sizing Guide here on the website.

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
@EXAIR_BF

Don’t Get Fired, Install A Cabinet Cooler System

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If the weatherman is correct, it is going to be a sizzling hot summer this year with the southern tier states experiencing triple digit temperatures and the rest of the nation in the 90’s.

When it gets hot, controls fail. When controls fail, production shuts down. When production shuts down, the boss yells at you. When the boss yells at you, you tell him where to go. When you tell the boss where to go, you get fired. Don’t get fired. Install an EXAIR Cabinet Cooler system.

EXAIR Cabinet Cooler systems incorporate a Vortex Tube to produce cold air from compressed air – with no moving parts. The compact Cabinet Cooler system can be installed in minutes through a standard electrical knockout. NEMA 12, 4, and 4X Cabinet Cooler systems that match the NEMA rating of the enclosure are available in many cooling capacities for large and small control panels.

EXAIR has a staff of engineers that will assist you in selecting the proper cooler.

Give us a call at 1-800-903-9247.

Joe Panfalone
Application Engineer

Phone (513) 671-3322
Fax   (513) 671-3363
Web: www.exair.com
Twitter: www.twitter.com/exair_jp
Facebook: http://www.facebook.com/exair