Laserfiche WebLink
Typical installations When installing vapor return piping, Main a constant slope from dispenser <br /> (continued) to storage tank. Lines must be free of dips or low spots. Use optional thief port <br /> assembly as required to collect condensed product vapors. <br /> Pressure test entire system before completing backfill operation. <br /> Install vent caps per local code. <br /> Backfill material should be clean washed sand, pea gravel or crushed stone <br /> (max 1/2 inch). Never use native soils. <br /> Minimum burial depth is subject to local fire marshal regulations. <br /> It is necessary to consider.state and local regulations as well as customer's <br /> specifications prior to installation. <br /> A typical three product service station layout <br /> incorporating Stage I and Stage ll vapor <br /> recovery.Ameron recommends the use of <br /> flexible connectors at dispensers and tanks. <br /> Alternatively,a 4-R"dogleg"is allowable <br /> per API Specification 1615.System <br /> components are not shown to scale. O 0 <br /> Vapor return lines should maintain a constant <br /> slope from dispenser to tank.Although not <br /> shown in this drawing,vapor and product lines <br /> are typically situated at the same subgrade <br /> elevation.Crossovers should be made as shown <br /> in the photograph on page 12. 0 <br /> Concrete <br /> Asphalt <br /> Approved fill <br /> 77777�77- <br /> Legend: Product Vapor <br /> C X <br /> 15 <br />