COMPOSITE LEAK REPAIR – NATURAL GAS FLANGE LEAK Case Study
Industry
Semiconductor Plant
Technical Details
Pipe Material: Carbon Steel Pipe SCH40
System Medium: Natural Gas
Pipe Size: 4”
Pipe Pressure: 250 psig
Temperature: 30˚C
Leak Location: 6-8” crack along Elbow & tee Joint
Leak Conditions
In a semiconductor plant a 4” natural gas pipeline is leaking at the pipe elbow and valve connections. It is necessary to stop the leak as soon as possible without performing hot works and while the plant is in operation.
Leak Solutions:
Leak Repair Method: Leak Repair
Leak Repair Conditions: Live Leak Repair (no operation shutdown)
Leak Addressed Time Required: 3hours
Leak Address Products:
• SmartStic Steel Epoxy Stic
• Fix”n”Fast Repair Putty
• QuikControl Fiber Glass Repair TapeLeak Solutions
Technical Solutions
Alstern’s specialist used ‘Fix’N’Fast Repair Putty & ‘SmartStic Epoxy was applied onto the pipe elbow to stop the leak and reinforce the pipeline. Next, ‘QuikControl Fiberglass Tape’ was applied over the repaired surface to increase the pipe wall thickness.
Credits to Alstern Technologies’ specialists and Alchem Manufacturing’s products
