Archive

Posts Tagged ‘ductile iron’

PICA finds a hole in one!

May 31, 2013 1 comment

Last July, we posted a blog about inspecting 4,400 ft of 16-in ductile iron force main in the southern U.S. using PICA’s patented SeeSnake. The resulting condition assessment indicated that the first 550 ft of line was heavily corroded while the remaining line was in great shape. A report was written that provided the remaining wall thickness along with axial and clock positions for the three thinnest pitting regions in each pipe.

Last week, a dig was performed to confirm PICA’s assessment on one of the assessed pipes. PICA predicted a through hole (0% remaining wall) located 2.7 ft from the joint along with two other corroded regions approximately 6 ft from the joint. The excavated pipe contained exactly that.

Knowing that PICA’s technology provides direct condition assessment that works, the client can now make informed decisions regarding their pipeline.

Through hole in Ductile Iron

Advertisements

PICA completes a successful inspection of 12″ FM in Midwest

November 26, 2012 Leave a comment

PICA crew with 12-in SeeSnakePICA was recently entrusted with the responsibility of inspecting 3,000 ft of ductile iron force main for a client on the banks of Lake Michigan. This critical pipeline carries treated wastewater between two plants and was targeted for inspection due to a failure on a parallel pipeline.

To facilitate this inspection, PICA inserted their free-swimming 12″ SeeSnake tool into the line by way of a launch barrel, used the plant’s pumps to push the tool the entire distance, and received it in a catch barrel. To ensure the tool would successfully navigate the pipeline, a gauge pig was run prior to inspection. Calibrations runs were also conducted on site to ensure the best possible data would be collected.

After three days of field work, the PICA team demobilized and sent the data to Toronto where it is currently being analysed.

For more information about this job, contact PICA USA at 1.704.236.3771.

PICA’s Bracelet Probe is successful in its first commercial application

October 16, 2012 1 comment

PICA recently completed field work using its new Bracelet Probe in Florida. A Bracelet Probe, manufactured by PICA’s sister company, Russell NDE Systems, is similar to the in-line SeeSnake tools used to inspect metallic pipeline. While the SeeSnake is an internally applied technology, the Bracelet Probe is applied externally and is appropriate for cast and ductile iron, bare pipe and for insulated, above-ground, steel pipe.

In Florida, PICA technicians inspected two sets of ductile iron pipe, 14″ and 20″ in diameter. Internal corrosion was found to be limited but there was some degree of external corrosion not immediately apparent from visual inspections due to the presence of graphitic corrosion. The graphite was later chipped out to confirm the inspected corrosion depth with a pit depth gauge. PICA’s results are currently being incorporated into the client’s Asset Management Plans.

For more information on the Blanket Probe (similar to the Bracelet Probe), watch this short video or contact us at info@picacorp.com

Bracelet Probe

PICA inspects 8″ and 12″ force mains in Southern California

August 28, 2012 Leave a comment

Inspecting FMs in SoCalPICA just delivered a final report for two force mains inspected in Southern California. The first line was 300 feet of 12-in ductile iron pipe and the second line was over 1,000 feet of 8-in ductile iron.

The two lines were selected by the client in order to obtain wall thickness measurements of the pipes as well as to assess the reliability and performance of the SeeSnake tools. Each run was accessed via manhole openings and contained multiple bends. The success of this job will allow the client to make proactive decisions about their infrastructure.

 

For more information about PICA’s services, please email us at info@picacorp.com or give us a call. We look forward to hearing from you!

PICA inspects 16-in force main

July 4, 2012 Leave a comment

InspectionLast week PICA completed the field work for a 16-in wastewater pipeline inspection. Located in the southern U.S., this cement lined ductile iron pipe had a history of failure and was a candidate for replacement and up-sizing. PICA was called in to assess the remaining life of the force main by measuring the actual remaining wall thickness of the pipe.

During the inspection, PICA’s SeeSnake Direct Condition Assessment tool traveled 4,400 ft, navigating five bends and crossing under major roadways.

The data is now in the Toronto office being analysed and a report will be issued shortly. For more information about this project and how PICA can improve your Asset Management plan, give us a call – we are happy to help!