Pipe-to-pipe reducing connections
Figure 4 - With standard reducing spacer1		Figure 5 - With taper reducing spacer1
1Only the following size reductions should be made by this technique when connecting pipe with molded raised faces: 1½ x 1, 2 x 1, 2 x 1½, 2½ x 1½, 2½ x 2, 3 x 2, 3 x 2½, 4 x 2½, 4 x 3, 6 x 4, 8 x 6. All other reductions require use of reducing filler flanges or concentric reducers.
Figure 6 - With reducing filler flange