ABS or uPVC flange
ABS or uPVC flange
(OP)
Are ABS or uPVC suitable materials to make half face flanges from, or is the material too brittle? A look at the Durapipe catalogue shows they do not offer plastic half face flanges. To achieve a half face flange a GMS backing ring is used.
The reason for the query - a contractor has installed a half face plastic flange with a plastic backing ring. The plastic backing ring has cracked.
Thanks,
rcooper
The reason for the query - a contractor has installed a half face plastic flange with a plastic backing ring. The plastic backing ring has cracked.
Thanks,
rcooper





RE: ABS or uPVC flange
This is a term that I am unfamiliar with, and as such, I am curious about what this thing looks like and what it does.
RE: ABS or uPVC flange
Also called a raised face flange. There is a raised area of the flange within the bolt circle which forms the sealing area, as apposed to a full face flange, which has a flat flange face and the whole of the face of the flange forms the sealing area.
Half face may be a colloquialism
RE: ABS or uPVC flange
RE: ABS or uPVC flange
RE: ABS or uPVC flange
RE: ABS or uPVC flange
By their nature ABS stub ends with backing flanges are raised face. Small diamter full face fittings are available up to DN100 but even these are may be used with a backing flange. In some locations the backing flange may be split in two to retro fit same.
An alternative source of ABS is from Eurapipe (Tyco Australia). This is being sold in the UK now. It is available up to DN800. http: