sleeving pipes

[andekoch]

just wondering about sleeving in pipes chassed into walls.

In the scenario where a pipe comes down the wall (from the ceiling void) to feed say a basin it will need to turn 90 degrees to exit the wall.

How do you sleeve that? It seems to me that the best you can do is sleeve the straight section and then duct tape wrap the end of the pipe where it turns 90deg to exit the wall. In practice the sleeve will then only be good for expansion and contraction. Also if the drop is over 1.5m you will then have a longer than wished for unsupported length of pipe as the only supports will be in the void and where the pipe exits the wall.

what would you guys do?

 

[Plouasne]

Where I am it is mandatory to run all pipe work that is buried in walls and floors, in a light plastic sleeve, called a "gaine sanitaire", as per the link

[DLMURL="http://www.bricodepot.fr/fleury-merogis-ste-genevieve-des-bois/node/796"]GAINE SANITAIRE TRANSLUCIDE | Brico Dépôt[/DLMURL]

clips can be used, but the normal making good with plaster of Paris will hold the pipe work in place, and allow expansion and contraction without damaging the making good, the end of the gaine is cut back to be flush with the face of the wall, after making good

 

[Winston]

Probably a bodge but in the past I have sleeved the copper inside 22mm plastic pipe and clipped that not the copper.

 

[andekoch]

winston, that woudl work fine for a horizontal run but what about the exit at 90 degrees from the wall?
in my case the run is vertical so clipping the sleeving will not help support the pipe.

Plouasne, that is the other option i looked at (not the same produce but similar thing) but again was wondering what to do about supporting the pipe.

 

[Plouasne]

winston, that woudl work fine for a horizontal run but what about the exit at 90 degrees from the wall?
in my case the run is vertical so clipping the sleeving will not help support the pipe.

Plouasne, that is the other option i looked at (not the same produce but similar thing) but again was wondering what to do about supporting the pipe.

The pipe will be buried in the wall, and will be (or should be) supported by the making good, which is like a long continual support, and also allows for expansion of the pipe