DRAIN, WASTE AND VENT EXPANSION JOINT

摘要

A drain, waste and vent pipe expansion joint or connector for use with plastic pipe is provided with (1) a thermal guide for proper positioning of a mating pipe at installation temperature to allow for linear expansion or contraction of the pipe, (2) a transparent window for visual inspection of the completed assembly, and (3) a positive means for sealing the connection so as to prevent leakage of gas or liquid wastes.