7
Customized Lengths— Cutting Standard Lengths
The Polyflue system is designed so that standard lengths may be field cut.
To custom cut a standard length part:
1. Measure custom length needed keeping in mind the pipe joint overlaps. Push the mating pipes together
and pull back as explained in Step 2 of the Joint Connection Section. Mark and measure the overlap line
needed on the male end that will be cut. Apply the overlap distance accordingly to the custom length.
2. Cut the pipe with a miter saw or hack saw at the male end of the pipe (non-gasketed end). To help get a
square cut, create a straightedge by wrapping masking tape around the waste side of the cut point.
3. Make a chamfered edge at the new male end just like a normal pipe out of the box
4. File off any plastic burrs that develop in the cutting process prior to assembling. If the cutting process
distorts the roundness of the pipe carefully use your thumbs to re-round the end.
Horizontal Support
For proper installation, install horizontal pipe at a 3/8” rise per foot (31mm / 1000mm) upward pitch and place
Polyflue Horizontal Supports (HS) at the required minimum intervals below. Pipe strap can be looped around
relative hose clamp and secured to the side or underside of the joist beam using (2) wood screws (by others)
(Fig 5).
Pipe Size
Horizontal Support Spacing
Vertical Support Spacing
2” (60mm)
30” (762mm)
16 feet (4.9m)
3” (80mm)
39” (991mm)
4” (100mm)
48” (1981mm)
Figure 5
Summary of Contents for Polyflue BH
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