Snap Wrap Refinery Leak Repair
8” diameter stainless steel line
50 psi operating pressure
38°C operating temperature
Multiple pin hole leaks over a 35’ section due to corrosive nature of the product (82% nitrogen, 6.5% acetic acid, 1.9% water, 8.3% oxygen, 1% hydrogen bromide, 0.2% methyl acetate, 0.1% methanol).
It was not possible to shut down the line so wearing appropriate PPE technicians applied nylon plugs into each pin hole location (these were first drilled to suit the plug diameter). Once plugged the line was manually cleaned, leak stop applied and 35 Snap Wraps installed over the complete section.
Completed by one technician in less than 2 days.
The leaking and failed pipeline
Application of the nylon plugs into the drilled holes
Completed Snap Wrap installation
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