Although pigging is not unknown to the public works sector, it is not used with the frequency found in other industries operating piping systems.
"Despite efforts at utility meetings and conferences such as the American Water Works Association, many water system managers remain unfamiliar with pigging," Cubage says.
Having determined the
pigging application and having gathered information on the pipeline characteristics, we can start our pig selection process.
The seminar focused on the basics of
pigging. Attendees included field personnel, new engineers and others interested in learning more about
pigging, new
pigging products and the latest in
pigging technology.
Automated
pigging systems refer to a method and system for staging multiple pigs and launching a single pig with a fully, semi or manually operated automated system.
In order to prevent liquids from accumulating and to maintain production levels, routine
pigging is required.
One key feature of the system is that the launcher will not be required to be accessed again until all the pigs loaded in the cassette have been launched into the pipeline and a new
pigging campaign is required.
If the pig trap is to be located in an area where horizontal space is not at a premium (such as on an offshore platform or a refinery), then care should be taken to provide sufficient work space adjacent to the closure door for
pigging operations.
The overall design of the batch
pigging system included a launcher, receiver, batch pigs, load and unload trays, trap drain and sump systems, pig washers and automation for remote-launching capabilities that could be integrated into current station control programming.
* Launcher and receiver--designed according to Petrobras standards and specifications for
pigging operation.
The original "
pigging valve" concept introduced many years ago only allowed the use of a sphere.
The founders of Pigs Unlimited offer their combined 35 years of experience in the
pigging industry.
Pigs Unlimited has published an 8-page color brochure devoted to its inclusive pipeline pig product lines included foam pigs, steel pigs and parts, solid cast pigs, process
pigging systems, launching and receiving
pigging valves and
pigging services.
Inline Services is quickly becoming one of the fastest growing suppliers of
pigging equipment to the oil, gas and product pipeline industry.
The original "
pigging valve" concept--introduced many years ago--only allowed the use of a sphere.
