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Isolation Test Plug Installation
Team’s Isolation Test Plugs block flammable atmosphere for fast, reliable and safe pipe isolation, weld testing, and cutting and beveling.
Applications
Single isolations
Double block and bleed isolations
Weld, nozzle, flange, and pneumatic tests
Complete system isolations
Benefits
Verify integrity of welds and pipe
Reduce time and cost needed to repair and test welded connections
Minimize purge costs and associated waste
Handle both low- and high-pressure applications
Does not damage interior pipe walls
Require minimum test medium
Prevent back-pressure build-up during tests
Can anchor to flange to prevent escape
Flange Weld Isolation and Testing
Team’s flange weld test plug enables the company to monitor conditions upstream of the seal, isolate and purge the weld area, complete the weld and hydro-test to Code requirements with one tool which saves you time and expense.
Team’s flange plug isolates just the weld area so there’s no need to fill the entire line or vessel to test it.
A key design feature of the flange weld plug is its high-lift seal. Because the seal can expand more, the tool has greater seal-to-pipe clearance, making it easy to move past the weld and eliminating the need to grind out excess root penetration.
Seal and washer set easily to accommodate different pipe schedules.
Double Block and Bleed (DBB) Isolation, Testing, and Heat Treating
Team's double-block-and-bleed (DBB) plugs improve safety with two compression seals that positively isolate the section of pipe to be welded from upstream gasses.
After the plug is in place and before welding, the chamber between the two seals can be pressure-tested with a small volume of water and a hand pump to ensure that positive isolation has been achieved.
During welding, the plug vents upstream vapors away from weld areas through a hollow central port that also can be used to monitor upstream pressure.
For hydro-testing after the weld cools, Team repositions the DBB plug over the weld area, injects a small volume of water, and pressurizes it with a hand pump. When the hydro-test is complete, there's only a small amount of liquid to dispose of - not a pipeful.
The DBB plug can also be used to isolate the welded part of the pipe for heat treating. The plug, set away from the heat-stress area, is not affected.
