CASE STUDIES

COMPOSITE LIVE LEAK REPAIR – FRP PIPE

Technical Details

Pipe Material: FRP Pipe

Pipe Size: 52 in

Pipe Medium: Polypropylene

Leak Condition: 10 in longitudinal crack

System Pressure: 150psi

System Temperature: 30°C

Leak Conditions:

A 52 in. FRP sweater cooling pipe, buried underground with an operating pressure and temperature of 150 psi and 30 °C respectively, was connected to three plants (Polypropylene, Aromatics and Refinery). There was a 10in. longitudinal crack along the top section of the FRP pipe, which was propagating longer each day. However, it could not be shut down for repair.

Leak Solutions:

Using composite repair, the repair was completed successfully without the operating system having to be shut down. Fix ‘N’ Fast Bond metal repair putty and QuikControl fiberglass repair tape was applied. Wrap-Pro stainless-steel pipe clip was applied to tighten the FRP, so the crack did not further propagate. It can be used for temporary or permanent repair for securing, mounting, strapping, clamping and all conventional clamping jobs and can be cut into any required size. After the pipe crack was prevented from further deterioration, Fix ‘N’ Fast Bond metal repair putty was applied around the pipe circumference. It could cure for one hour so that it could be dried/hardened to the pipe surface. Finally, a suitable size QuikControl fiberglass repair tape was applied for pipe reinforcement.

Leak Repair Method: Composite Live Leak Repair (no operation shutdown)

Leak Addressed Time: 2hours

Leak Repair Products:

• Fix ‘N’ Fast Bond metal repair putty

• QuikControl breglass repair tape

• Wrap-Pro stainless steel pipe clip

*Credits to Alstern Technologies’ Leak repair specialists and Alchem Manufacturing’s composite products