Quick question for the master plumbers here:
The gas supply line from the house connection to the heating system has just been installed on the unfinished floor, so it will soon be covered by the screed. It is about a 25 mm (1 inch) copper pipe with a plastic coating.
At one 90° bend, the copper pipe has slightly narrowed, while all other bends are smoothly curved without any constriction. I would describe the narrowing as a kink, and you can feel that it is no longer perfectly round on the outside but flattened. See photo.
I pointed this out to the installer, but he said everything is fine and there is no problem.
Is this still compliant with standards and safely installed as is, or should it be replaced?
The gas supply line from the house connection to the heating system has just been installed on the unfinished floor, so it will soon be covered by the screed. It is about a 25 mm (1 inch) copper pipe with a plastic coating.
At one 90° bend, the copper pipe has slightly narrowed, while all other bends are smoothly curved without any constriction. I would describe the narrowing as a kink, and you can feel that it is no longer perfectly round on the outside but flattened. See photo.
I pointed this out to the installer, but he said everything is fine and there is no problem.
Is this still compliant with standards and safely installed as is, or should it be replaced?
Vicky Pedia29 Jun 2020 22:55If the screed fixes everything in this state, nothing will happen.
I am an amateur and far from an expert, but I consider this to be concerning. If the pipe bends sharply, it is NOT correct. Otherwise, it would always be bent.
Moreover, it is a gas pipe. That gives valid reason for concern. Not fear, but concern. I would inform the head of the installer and the site manager.
Moreover, it is a gas pipe. That gives valid reason for concern. Not fear, but concern. I would inform the head of the installer and the site manager.
Vicky Pedia schrieb:
If the screed fixes everything in this state, nothing will happen.I will take this as a non-expert statement for now.@Detlev69: Talk to the installer and have the gas pipe replaced. Bending these pipes poses a risk because it essentially creates a weak point.
The bend was probably even sharper during installation; once bent back, it can no longer be reshaped and leaves such deformations. If wrinkles form in the process, that is basically the end of it.
A repair on Wicurohr for gas piping is not permitted without installing a complete protective conduit over the entire length afterward.
Since the gas pipe is located within a "void," it must be ensured that in case of a gas leak, gas cannot accumulate in these voids. This is a regulation.
For example, if a coupling or elbow is installed, there is an interruption of the insulation—in the case of gas, this means the protective sheath. Wrapping anything around it does not help.
The only option is a complete replacement.
A repair on Wicurohr for gas piping is not permitted without installing a complete protective conduit over the entire length afterward.
Since the gas pipe is located within a "void," it must be ensured that in case of a gas leak, gas cannot accumulate in these voids. This is a regulation.
For example, if a coupling or elbow is installed, there is an interruption of the insulation—in the case of gas, this means the protective sheath. Wrapping anything around it does not help.
The only option is a complete replacement.
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