Hello,
While looking into the GRP pipe catalogue, I found out that the thickness of the pipe decreases with the increase of the pipe class especially when it increases from PN10 and higher. This is totally different to what we used to know for ductile iron pipes.
Any idea behind this?
I have a valve inside a concrete valve chamber. Upstream the valve there is a dismantling joint that connects the valve to a flanged pipe which have a puddle flange at the place where it intersects with the wall of the chamber. The same is on the downstream side of the valve without having a...