D
defender1007
Is LDPE pipe the same as Alkathene or are they two different pipes.?
Discuss Black mains water pipe in the Plumbing Jobs | The Job-board area at PlumbersForums.net
If its not on show just put a new stoptap next to the old. Get a 22mm stoptap chuck away the olives and buy two 3/4 olives and you'll be fine.Many thanks. I have worked with mdpe but never come across ldpe. I have to try and unseize the main internal stopcock that has the black (ldpe) pipe on both sides. I am a little nervous about working with the pipe. But before I can do that i am wating for Thames Water to fix the external stopcock.
I always assumed that alkathene was a generic name for the whole range of polyethylene pipe.
Generally speaking, in the UK, modern blue water-main is made from Medium Density Polyethylene (MDPE)
In the past black light density polyethylene (LDPE) was common, but it came in several different classes, so Class C LDPE required different fittings, or at least different inserts, to Class D LDPE.
The class was indicated by colour coded writing on the side of the pipe - as I recall they are pale green, dark green, sky blue and a sort of browny red - but there may be more in other areas. Several fittings manufacturers colour code their inserts to match the colour writing on the pipe.
If its not on show just put a new stoptap next to the old. Get a 22mm stoptap chuck away the olives and buy two 3/4 olives and you'll be fine.
Cut with a hacksaw as it can sometimes be brittle
Reply to Black mains water pipe in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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