Definition - What does Go Devil mean?
A Go Devil is a device that is used to inspect the internal surface of a pipeline and clean slurry or paraffin wax which gets accumulated in the pipeline. It is mainly used in the maintenance of pipelines. These are loaded into a launching station known as a pig launcher. They are then launched inside the pig launcher, where high pressure forces them to reach to the other end of the pipe, which is known as a pig catcher, receiving trap or receiving station. The other name for Go Devils is Scrappers.
Petropedia explains Go Devil
Go Devils or PIGs (Pipeline Intervention Gadgets) are moved inside a pipeline without halting the high-pressure flow of the product. They help in cleaning the pipeline by getting rid of buildups, sediments and metal objects that are stuck inside the pipe. The pigs are usually used along with lubricating oil in order to empty the pipe and clean it up from any possible contamination. Pipeline Pigs are used in pipelines before starting a batch or after the completion of the batch. There are various types of pigging instruments used when carrying out the process such as:
- Utility Pigs such as Cleaning Pigs, Foam Pigs, Geometry Pigs, Mandrel Pigs, etc.
- Inline Inspection Pigs (Smart Pigs)
- Specialty Pigs such as Gel Pigs