Tank Drop Off System
the Tank drop off system
Overview and System Demonstration
A Tank Drop-off System is similar to a standard single-pig system, but incorporates multiple destinations on the same line to deliver product to. There is no limit on the amount of drop-offs that can be used.
How a Tank Drop Off Pigging System Works
After a transfer to a tank, the automatic pigging sequence sends a pig to the blocking valve for that tank. Any blocking valves between the destination and the pig are opened to allow for a clear route. The pig is then returned with the same receive-return pigging station used on a single-pig system.