iNPIPE PRODUCTS flange weld testers provide accurate localized pressure testing of new flange welds. This is of particular benefit when pipeline modifications and old pipe work repairs are conducted as they purely test the new weld and not the whole system. Pressure testing of an old line can lead to confusing results given the potential for other leak paths particularly on lots of other fittings. Special angled testers are also available for flanges fitted on bends.
A full range of standard flange weld testers are available up to 36” and compatible with common pipe schedules and flange configurations up to class 2500. Additional proven variations available include angled flange weld testers and increased expansion seal characteristics through patented composite Posi-seal™ technology. The design of such seals incorporates differing material hardness characteristics to withstand the continuous rigors of compression within the flange weld tester hub and expander but with the necessary reduction at the point of contact between the composite Posi-seal™ and the internal pipe wall which can be corroded or subject to hard deposition products.
Orientation and location of the weld tester must be taken into consideration to ensure that all air is effectively bled from the cavity area. Venting chimneys are available to cover any test orientation required.
All weld testing equipment and plugs are available in mechanical and hydraulic options for tethered remote operation depending upon size, location, and actuation requirements. All products are supplied complete with full factory acceptance pressure test certificates which can be third-party witnessed (TPI) if required. Internal weld testers can be used in a number of options and orientations for testing butt welds to line pipe. Mechanical and hydraulic options provide for local or remote actuation through extended hoses.
Internal weld testers can also be used to test the effective sealing of flange-mounted ball valves. Depending upon application, testers can be purpose-manufactured to provide a specific length between the Posi-seals™. Flange weld testing can be achieved by either using the bespoke flange weld tester or by using an internal weld tester as illustrated. The weld is again located between the two Posi-seals and the weld is tested by pressure testing the cavity between the two energized seals.
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Petracarbon is a diversified engineering company headquartered in Singapore. It traces its roots back to 1982 and has now grown to having operations in 5 countries with over 10 locations.