During turnaround and maintenance activities new tie-ins are installed, valves and tees are cut in, and flanges are replaced. During many of these welds, dangerous and explosive vapors fill the lines requiring double block and bleed isolations for added safety and protection. After the joint has been welded, it then requires hydro-testing.
Many times to test that one weld, hundreds of feet of pipe would need to be filled and tested, resulting in high material and environmental disposal costs of test mediums. By using a variety of plugging tools and gas bags, Innovator provides our clients with full double block and bleed welder isolations and localized weld hydro testing to remove the need of full system tests.
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