Temporary Repairs on Process Piping

Temporary Repairs - PipingDesign.com

It isn't safe.

1) You want the repair to be at least as strong as the original piping.

2) It is more dangerous to have a pipe with a history of leaks and repairs than it is to use new pipe.

3) always replace a previously defective and patched pipe with new pipe as soon as possible.

Good Luck, Old Salt

Because you already know that the pipe is getting thin underneath the repair and you don't know where it is going to leak next.

Next time, choose pipe materials that are compatible with your process fluids!

You try to patch it, instead of fixing it properly.

It fails.

Someone gets hurt or killed.

Someone gets punished, as in sent to prison.

Is it worth it?

Thanks to everyone and really appreciate the response, yes agreed this is really a safety concern.It may lead to very high consequences in terms of safety and loss of production for an extended period of time.

What i am thinking the reason of classifying welded pressure metallic sleeves / patches under temporary repair category in API codes (570 & 510). The pipe is originally designed as a thin cylinder as per ASME B31.3 and is more flexible. while putting a metaalic sleeve on thinned pipe will make it a thick cylinder where the flexibility to internal pressure stresses and external loadings will be less compared to original pipe. Moreover, the perimeter wleds joining the sleeve to carrier pipe are less strong to BUTT welds. Therefore, the probability of failure is more than the original pipe.

Do you agree with this???