THERMALLY INSULATED COVER FOR MANHOLE OF STAINLESS STEEL WATER TANK

摘要

PURPOSE: A manhole unit heating coverage of a stainless steel sheet material water tank for heating the manhole unit heating coverage is provided to prevent from the water becoming hot in the summertime. CONSTITUTION: A manhole unit heating coverage of a stainless steel sheet material water tank for heating the manhole unit heating coverage is welded in the upper surface and A heat insulator accepting chamber is formed on a cover. A bolt(201) 4 is welded perpendicularly in the cover upside in which the heat insulator accepting chamber is formed or an urethane heat insulator is laminated inside the heat insulator accepting chamber and it charges in the heat insulator accepting chamber. The aluminum or the color zinc jacket in which a bolt hole is formed in the outer cover upper side is coated and the bolt upper end passing through a bolt hole of the heat insulator is projected to the bolt hole.