| 摘要 |
PURPOSE: A heat insulation material for a water meter protection box, which is composed of an upper insulation material and a lower insulation material, is provided to reduce an installation work time and to improve the insulation property. CONSTITUTION: A heat insulation material(2) for a water meter protection box is composed like next. An upper heat insulation material and a lower heat insulation material are integrated to form one heat insulator. A closed part is formed inside the part excepting an inspection hole. A vertical tunnel part, composed of a valve insertion hole, an inspection hole, a pipe insertion hole, a vertical cut part, is formed on the lower part. Opening and closing valve, a water meter and a pipe are connected each other and installed in a water meter protection box by inserting one insulation material from upper side. |
