EST Group's GripTight Isolation Plug
allows you to positively isolate and monitor potentially explosive
vapors during "hot work", then effectively hydrotest the new weld
connection with one easy to use tool.
The GripTight Isolation Plug
integrates all the features of EST's Double Block and Bleed Test Plug
with GripTight gripping technology. The GripTight Grippers enhance
operational safety, minimizing the risk of accidental plug blowout
or failure due to improper use or unexpected upstream pressure
in the line.
The GripTight Isolation Plug is
capable of withstanding upstream pressures up to 1440 PsiG (100 BarG).
If the upstream pressure increases, then the GripTight Grippers
actually use the pressure to increase their grip on the pipe.