Solvent Cement Joints PVC Sewers
Solvent Cement Joints PVC Sewers
(OP)
Hi everyone,
I am based in the Caribbean. Can anyone tell me why ASTM D3034 and ASTM D2855 would not be applicable for this region? There are no local sewer jointing standards but the local Approval Agency seems to be against solvent joints. Is there substantial evidence that these joints do not work and if so, why hasn't ASTM withdrawn the standards for solvent joints?
Thanks,
Allie
I am based in the Caribbean. Can anyone tell me why ASTM D3034 and ASTM D2855 would not be applicable for this region? There are no local sewer jointing standards but the local Approval Agency seems to be against solvent joints. Is there substantial evidence that these joints do not work and if so, why hasn't ASTM withdrawn the standards for solvent joints?
Thanks,
Allie





RE: Solvent Cement Joints PVC Sewers
Push-on joints are considered to be flexible joints. Solvent welded pipe joints are considered to be rigid, not flexible and will tend to break with lateral soil movement.
That is why water and sewer pipe are not solvent welded.
RE: Solvent Cement Joints PVC Sewers
As for why ASTM do not cover Solvent cemented joints i csannot answer. But in other parts of the world this type of joint is OK.
PVC-U uses a solvent cement joint rahter than a solvent welded joint. The latter is used in ABS piping.
RE: Solvent Cement Joints PVC Sewers
What I posted is that underground water and sewer piping typically use flexible jointed piping.
RE: Solvent Cement Joints PVC Sewers
RE: Solvent Cement Joints PVC Sewers
When I lived in the Carribean in the 90s, the (design)attitude was to allow for flexibility and..."let it move where it wants to move.."
For sewers, I'd spec a push-on type joint with a corrosion resistient gasket (Nitrile, Fluorocarbon, etc) in lieu of a rigidly glued joint.
H.
RE: Solvent Cement Joints PVC Sewers
RE: Solvent Cement Joints PVC Sewers
RE: Solvent Cement Joints PVC Sewers
Thanks alot for your responses. Synopsis: solvent weld is the worst type of joint to use in sewers within earthquake zones. Gasket joints aren't too good either but perform better than solvent weld joints except in extreme earthquake events. Cool.
Allie.