Slotted Guide Poles & Gauge Poles in floating Roof as also the openings in between Poles & the Gauge well or the gauge Pole housing have exactly the same emissions effect as any other roof opening.They constitute a pathway for eVAPOURative product losses and volatile organic compound (VOC) Emissions. VOC include a wide variety of hydrocarbons, some of which are hazardous air pollutants (e.g. Benzene, Toluene, Xylene and Ethyl Benzene), Depending on the size, location and contents of a tank, uncontrolled emissions from the use of slotted Guide Poles can exceed 25,000 pounds per year. Simple and inexpensive solutions exist to minimize these emissions and reduce eVAPOURative losses.
A substantial number of tanks have slotted Guide Poles. They may be found at any facility that stores substantial quantities of volatile organic liquids, including petroleum products (e.g. Refineries, Gasoline Distribution Terminals, Chemical Plants and Other Facilities).
The practice of providing Flexible Enclosure Systems around the Slotted Poles are in existence over a number of years around the World. Sai Tools has successfully developed this System in India.