Breathers and Drains in Hazardous Areas

[KenAlmon]

Can anyone enlighten me as to the way that breathers and drains can be installed in hazardous areas without compromising boxes that were otherwise sealed? Is it acceptable to install a drain and breather in an XP box? How do they work? Any references on websites would be appreciated.

Thanks

Ken

 

[rmw]

Google "protectoseal"

I seem to remember that they had a product that was a breather for XP enclosures.

There are others in the same business, but you can get the key words from the protectoseal site.

rmw

 

[resqcapt19]

Look at this Crouse Hinds catalog page. They list both drains and breathers for Class 1 Division 1 enclosures.

http://www.crouse-hinds.com/crousehinds/pdf/CH62318A-0274.pdf

These items are threaded into the tapped holes in the explosion proof enclosure and provide a method of flame arresting to prevent the ignition of the oustide atmosphere when an explosion occurs within the enclosure.
Don

 

[jbartos]

Suggestion: Yes, they can as long as they are designed for such locations and installation types. Visit

http://www.appletonelec.com/PDF/I-2-3-21.pdf

etc. for more info

 

[TMD]

This may be useful, but NOT for flameproof enclosures.

http://www.raxton.co.uk

http://www.peppers.co.uk

for Ex e, IP66 breathers.