By preventing the evaporation of product, EVAPOSTOP can pay for itself in less than a year and will continue to save thousands of dollars yearly, For example, evaporation from a typical 36.6 meter (120 ft) fixed roof tank will result in the loss of more than 6400 barrels (or 770 ton) of product per year. With EVAPOSTOP discs, more than 5800 barrels (690 ton) of these emissions could be saved, which equates to savings of approximately $270 000 each year.
In the typical tank mentioned above, more than 770 tons of hydrocarbon products would be released into the atmosphere per annum, causing further harm to the environment. EVAPOSTOP discs would, however, prevent most of these vapors from being emitted.
EVAPOSTOP discs require NO maintenance, as they are made of stainless steel and are non-corrosive, They also are much safer to operate than conventional internal floating roofs. There is no risk of the roof jarming or sinking, or of the possible generation of incendive sparks (produced by aluminium internal floating roof tanks). which may lead to tank explosions or fires. The discs are extremely easy to install – very simple modifications are required to the tank nozzles and no hot work is required. EVAPOSTOP discs additionally suppress fires within tanks by reducing the vapor available for fueling the fire. A fire within a tank containing EVAPOSTOP discs will be significantly smaller and will have a longer onset time than in a conventional fixed roof tank.