Insert pigs (one at a time) through a pig launcher then pump through system and continue running pigs (one at a time) into the line until:
- no additional decrease in flowing pressure or
- no additional increase in flowing rate or
- no additional accumulation is removed downstream.
If desired, the amount of fluid pushing the pig can be measured to determine the pig location. Do not use more than one pig at a time. ALWAYS record the volume of the fluid behind the pig as “insurance” so that the pig location can be calculated should it become stuck. Applying heat to the pipe can melt the pig. ALWAYS have the capability to pump from the opposite end of the lines to free an obstruction.
THE MOST COMMON SIZE PIGS ARE LISTED BELOW. Call for quotations, if a special BALL is desired. PLUGS can be made to any specification desired.
WHEN ORDERING PIGS SPECIFY: (1) Quantity (2) Pipe Inside Diameter and schedule (3) Oil-soluble or water-soluble (4) Balls or Plugs EXAMLPLE: 6 cases, 2” schedule 40 (ID 2.067”), oil-soluble balls.