It sounds to me like you have an environment where there is outdoor equipment where flammable vapor/air mixtures could exist under normal fuel transfer operations. IMO, this would be found in the Class 1 electrical equipment locations under Group D Division 2 for an area between 3' and 8' of any edge of such equipment extending in all directions. Also, area up to 3' above floor or grade level within 3' to 10' horizontally from any edge of such equipment. Division 1 would be area within 3' of any edge of such equipment extending in all directions. Diesel fuel is a flammable/combustible liquid having a very low flash point. Its vapors are heavier than air and they will collect in low-lying areas, (sewers, basements, tanks, etc.,) and a vapor explosion hazard exists. Vapors may travel to a source of ignition and flash back. Easily ignited by heat, sparks or flames. I am not an expert on this, just my humble opinion.CHARLIE W said:i am in the process of desighning the pumping and fill area of a fuel storage facility. i was trying to find out the class and division in the area of the fuel pumping area. could you tell me the class for #2 fuel / home heating oil.
It has a relatively high flash point of 100 to 125?F. If it is not handled or stored at or above its flash point there are no flammable vapors and no requirement for classification.Diesel fuel is a flammable/combustible liquid having a very low flash point.
Just so I know what's right...there is no classification and division assigned to the fueling and pumping area? None whatsoever? Thanks for your patience.don_resqcapt19 said:That would be 161.6F....unless you are heating it, there would be no flammable vapors.
I think the answer is that the mere presence of diesel fuel in an area is not grounds for classification. We can tell you that with some certainty.wbalsam1 said:Just so I know what's right...there is no classification and division assigned to the fueling and pumping area? None whatsoever? Thanks for your patience.