The unique design of this dual durometer
Hurricane FP pig is that it has a front hollow mandrel
with two port holes in the middle of the mandrel.
This allows the inhibitor to travel to the front of
the pig and then through the port holes. The
inhibitor is then contained between the 86
durometer leading cup and two 62 durometer
rear sealing discs allowing the pig to leave a
film of inhibitor on the pipe wall.