| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent heat, flame, smoke, etc., generated on one side of a partition part from reaching the other side even when piping is deformed or burnt at the time of a fire by using this fire limit through member by fitting it in the piping constructed through a fire limit through part. SOLUTION: Piping passing through a fire limit through part formed on a partition part of a building is inserted into this member. In this case, the fire limit through member is formed of a cylindrical molding made of a thermal expansion material, thickness of the cylindrical molding is made of 1-20% of a piping outside diameter, and length of the cylindrical molding is made of 50-150% of thickness of the fire limit through part.</p> |
