Technical data

Figure 1 Figure 2
1. TAPPING TEES
Tapping tees should be left intact for crush testing. Pipe lengths can be cut to the edges of
the fitting base.
Place the pipe and fitting into a vise so that the jaws are within 1/2" (13mm) of the bottom
of the saddle, ( Figure 3). Close the vise until the pipe walls meet, ( Figure 4).
Inspect the crushed specimens for separation of the pipe and fitting in the fusion zone.
Some minor separation (up to 15%) may be seen at the outermost region of the fusion
zone, this does not constitute failure. Ductile failure of the pipe, fitting, or PE insulation
around the wires is acceptable. There should be no separation at the fusion interface of
the pipe and fitting.
Figure 3 Figure 4
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