6)Use locking bands provided to join adjacent sections of
7)The only straight pipe that can be cut is the terminal section, the
a)Cut pipe from the male end. After marking the desired length of the outer pipe, remove the plastic inner pipe by pulling it out from the female end.
b)Cut the outer pipe only at the point marked in Step (b) using aviation shears, a hacksaw, or an abrasive wheel cutter. Be careful to cut the pipe square. De burr the cut end with a file or emery cloth.
c)Cut the plastic inner pipe so that it will protrude 3/8” beyond the outer pipe when reinstalled in the outer pipe. Use a fine tooth hacksaw or a PVC saw to cut the plastic pipe and be careful to cut the pipe square. De burr the cut edge of the plastic pipe with a file, razor blade, or fine sandpaper.
d)Reinstall the inner pipe.
8)Install the terminal as outlined in Step (4) above. Dimension “L” described in Step 4 is the distance from the exterior sur- face of the wall to the end of the last piece of pipe inside the building.
FIGURE 7.22: CUTTING OUTER PIPE |
FIGURE 7.23: CUTTING INNER PIPE |
24 |