In-line weld testing and isolation packages from Hydratight are designed to reduce system downtime during maintenance and increase worksite safety by minimising pressure test volumes.
The full turnkey testing packages, available throughout Australasia and the Asia-Pacific, are designed to save time and reduce costs by limiting the test area to only to new welds or welded components tested during routine maintenance and maintenance shutdowns such as Christmas/New Year.
Localised pressure testing is a means of verifying the integrity of a welded or formed joint or flange installation/weld which has been made on a piping system.
Typically these are made as a repair or modification of part of a process piping system which is undertaken during plant shutdown activities, says global joint security specialist Hydratight.
“Hydratight provides certified and experienced technicians to perform the job safely and provides operators a full turnkey testing package, delivering a first-class maintenance solution for facility assets. Hydratight's qualified and professional technicians provide a safe, reliable and cost-effective means for the localised pressure testing of piping,” says Hydratight.
Technicians insert the weld test tool into the pipe or equipment component to provide a fast and efficient method of verifying the integrity of butt welds, joints or other welded pipe components.
Hydratight's in-line weld test tools feature double block and bleed isolation. Once set in position these tools provide a verified vapour barrier allowing hot work activities to take place safely on-site.
To test the weld, the same tool is repositioned over the weld area. The weld test is typically undertaken using water as the test medium, but can be undertaken using inert gas where necessary.
The test is normally a strength test of the joint at 1.5 times the design pressure, but can also be used as a leak testing means, typically undertaken at 1.1 times the design pressure.
As there are multiple variants in piping nominal size pipe wall thicknesses and flange configurations, Hydratight offers a range of test tools to accommodate all requirements.