How Pipeline Pigging Works
Pig is launched into the pipe system by following the flow of the fluid in the pipe. This is done with the intention of making improvements to the pipeline by inserting a device called pig into the pipeline through the pig launcher. The pig moves down the pipe, following the flow of the fluid in it, until it reaches its predetermined end. Then the pig will be taken back through the pig receiver.
Pipeline Pigging Function
There are various types of pigs according to their function & shape. Pipeline Pigging Functions as follows:
- as a means of separating different products which must flow in the same pipe
- as a tool for cleaning deposits & sludge that sticks to pipe walls
- to calibrate the fluid velocity meter
- to apply the corrosion inhibitor along the inner side of the pipeline
- to remove traps in the gas stream
- to get rid of the gas trap
in the liquid stream
- as a means of inspection of the inside of the pipe
