FOLD TYPE DRAIN PIPE FOR PLANGE

摘要

PURPOSE: A foldable drain pipe for a flange is provided to last fastening force of a nut for long time by supporting a supporting protrusion protruded from the flange at the both sides of the packing. CONSTITUTION: A foldable drain pipe for a flange is composed of a profile. The foldable drain pipe for a flange includes a bolt hole(12). The bolt hole is formed in a coupling protrusion(11) of the flange(10). The flange is screwed in a fastening hole of a fastening projection with a bolt and a nut(22). The nut is provided with tightening force by passing a bolt through a hole formed in the connection part of the packing. The drain pipe maintains the constant watertightness of the packing between the flanges.