General Function and Application 
Red Rock Oilfield Service's flange weld testers are designed to pressure test various types of flange weld connections including weld-neck, lap-joint and slip on, eliminating the need for a full system test. The tools are inserted into the flange connection and fastened. The tool is then set and the annulus between the seal and the flange is filled/vented with the test medium and pressurised to the flange rating.
Manufacture
The body of the tool is made from high grade carbon steel and the seal is made from 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
When the tool is set, the seal is expanded radially against the pipe bore mechanically (up to 4”) or hydraulically (6” 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 depending on the flange rating. 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 ½” 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
Woodside, Conoco Philips, Shell, BP, Santos.
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