Internal Weld Testers 
General Function and Application 
Red Rock Oilfield Service's internal weld testers are designed to pressure test weld neck flanges, flange joints, and plain pipe butt welds eliminating the need for a full system test. The tools are inserted into the line and positioned with the seals either side of the test area. The tool is then set and the annulus between the seals is filled with the test medium and pressurised.
Manufacture
The body of the internal weld tester is made from high grade carbon steel and the seal is made from special polyurethane which has a low hysteresis. All units are work tested and supplied with full operating instructions and pre mob check sheets.
Utilisation and Operation
The seals are expanded radially against the pipe bore mechanically (up to 6") or hydraulically (8" and above) to seal off the area to be tested. The annulus created is then filled and vented with the test medium and pressurised up to the required test pressure which can be up to ANSI 1500. The tools can be set in both horizontal and vertical piping or inclining if required. Testing is achieved in a fraction of the time (and cost) of a full system test, whilst also reducing the provision and disposal costs associated with large volumes of test medium. Most tools can be easily installed and operated by one man.
Size, Pressure Ratings and Configurations
The tools are available for rental, both short term and long term, from 1" through to 24" up to ANSI 1500. For sizes and pressures above 24" and ANSI 1500, please contact us to discuss. Special tools can be shortened or lengthened to suit your specific requirements.
Track Record
ABB Australia; Australian Project Supplies; BJ Pipeline and Process; BP Kwinana; Clough; GCI Kenny; Geographe Energy; Philips Petroleum; Santos; Sigurros Malaysia; Transfield Worley; Woodside; Worley; Worley Parsons; and growing.
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