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Hi EdStainless, Thank you for your reply. The PEL is critical and answers the question as its a factor of 33 less than LEL. So vapours from vacuum pump should be expelled to atmosphere. Thanks again. Richard

Dear Fellow Engineers, My client is setting up a vacuum filling machine for filling very small bottles of whisky (50 ml each) at a rate of 50 bottles/min. Whisky is 43% alcohol. Now they have located the vacuum pump next to the machine and it discharges into the production area. I would have...

Hi Folks, I'm specifying a Ex fumehood for a client who will be handling sizeable quantities of flammables in fume hood. It will be Division 2/Zone 2 internally. In relation to electrical equipment located inside the fumehood, clearly this has to be Ex rated. My query surrounds the electrical...

Thanks georgeverghese!

Yes that's the bottom line for me. I'm assigning Zone 2 for headspace of belly tank. Client is pushing back a little on this!

Thank you , very helpful!

Thank you Composite pro

Thank you for your comments, very much appreciated. I agree, I need to get more detail on the generator to see whats going on there! Thanks

A snip from P&ID attached plus safety data sheet for fuel oil: https://res.cloudinary.com/engineering-com/image/upload/v1604936015/tips/SDS_lh4f0j.pdf I hope these attachments work. Its my first time on this website. thanks Richard

Folks, I am reviewing hazardous area classification for generator belly tanks for diesel (flash point 55C). Now I know diesel is not usually assigned hazardous area classification because it its high flash point. However, I think this might be an exception.. The fuel from the belly tanks is...