edited Leak Repair Appl Note 2 LPG Pipeline REV .pdf
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60 Kaki Bukit Place #09-11, Eunos Techpark Singapore 415979
Tel: (65) 6742 4992/6742 4998 Fax: (65) 6749 6916
Leak Repair Application Note 2
Carbon Steel Pipe SCH40
Straight and Tee-junction
The Natural Gas of a glass-manufacturing factory has been plagued with severe corrosion and several
locations along the pipe section had major leaks. Only cold repair is allowed on the pipeline as any hot works
will be dangerous under such situations.
The challenge in this project is that the integrity of the pipeline had been compromised and there were many
pinholes around the leak location. Furthermore the pipe wall thickness has been reduced drastically due to
severe corrosion and pitting. It is necessary to seal all these pinholes in order to stop the existing leaks and
reinforce the pipe wall to strengthen the pipe.
Seal Stic steel epoxy was first applied onto the pipe to seal off major pipe leak locations. Thereafter Wrap Seal
PLUS standard resin and activator is applied onto the pipe surface to stop corrosion and seal off pinhole
leaks. Wrap Seal fiberglass tape was then applied onto the pipe surface to reinforce the repaired location.
Severe corrosion and leaks on pipe surface
Severe corrosion and leaks on pipe elbow
Applying pipe wrap Seal PLUSresin & activator
Applying Wrap Seal
Note: Appropriate Personnel Protective Equipment shall be used for repair on Natural
Gas pipes. Material Safety Datasheet and safety procedure must be strictly adhered to
during the repair works.
Expert in Pipeline Products
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