Laserfiche WebLink
FIGURE 5 <br /> VAPOR REL M PIPE R0L1TING <br /> Shown here is a typical corner service station with six dispensers, twelve <br /> nozzles, three product storage tanks, one building, and initally no Stage II <br /> .vapor return piping. (u/j, - Unleaded, S - Super, R - Regular) <br /> Case 1: Is vapor piping individually returned to the respective product tank. <br /> Case 2: Is vapor piping returned from all dispensers to ori a=nulator tank <br /> and from the accumulator to each product tank. <br /> Case 2s Is vapor piping returned from all dispensers to one storage tank. In <br /> this case the free space in the three storage tanks are tied together <br /> by underground manifold piping. <br /> Case 4: Is one vapor pipe returned from all dispensers to one storage tank. <br /> Wherein the VCS-400-7 system is used, the storage tanks are tied <br /> together by a manifold at the top of the vent risers. This arrangement <br /> is particularly applicable to the case of many small storage tanks. <br /> TYPICAL (j Il STATIM WITH CASE 1 <br /> NO NAGE II PIPING <br /> UNDERMOUND <br /> STORAGE <br /> u/ TANKS "A <br /> 5 � <br /> VENT RISERS <br /> (OPEN) GASOLINE <br /> DE <br /> �.ZVE�C <br /> PIPING NOT <br /> SHOM <br /> � V <br /> �t <br /> BUILDING SL 5 <br /> R � <br /> 4- VAPOR <br /> ISLANDS AND REZUM <br /> DISPENSERS PIPING <br /> R 5 u/L R S "/►- <br /> h <br />