Vitreous flue pipe dimensions

Most of you are here to find vitreous elbow offsets (two elbows on top of each other):

5″ pipe 30 degree elbows provide an offset of 80mm (same with door)
5″ pipe 45 degree elbows provide an offset of 125mm (same with door)
6″ pipe 30 degree elbows provide an offset of 86mm (97mm with door)

6″ pipe 45 degree elbows provide an offset of 142mm (same with door)

Vitreous flue pipe dimensions and offsets (PDF file) (click link)

Two elbows without doors stacked on top of each other are approx. 35cm high (this is measurement D in image below but use above link if you need to be sure/exact).

Note: Vitreous pipe can be cut to length with a grinder and a 1mm thick disk.

The PDF shows detailed CAD drawings of all the different vitreous pipe dimensions including “elbow on top of elbow offsets”. Note that a 150 degree bend is the same as a 30 degree bend and a 135 degree bend is the same as a 45 degree bend.

Most of you will be looking for pages 21 and 22 in this document. Page 21 shows 5″ (125mm) twin-elbow-offsets and page 22 shows 6″ twin-elbow-offsets.

TIP: When you see 125×150 ND this is: 125mm diameter elbow of 150 degrees with No Door (a 150 degree elbow is also a 30 degree elbow as the charts use the outer angle rather than the inner angle).

TIP: When you see 150×135 WD this is: 150mm diameter elbow of 135 degrees With Door (a 135 degree elbow is also a 45 degree elbow as the charts use the outer angle rather than the inner angle).

 

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