| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate pipe replacing work by sealing the gap between a pipe and a partition through hole inserted with the pipe while reducing labor and cost and eliminating corrosion, falling or adhesion to the pipe. SOLUTION: The sealing bush for partition through hole is made of Teflon (PTFE) and comprises a tubular body 21 having inner circumference larger than the outside diameter of a pipe 5a, outer circumference smaller than the diameter of a through hole 7a, and longitudinal length longer than the depth of the through hole 7a, an inner circumferential seal part 22 coming into tight contact with the outer circumferential surface of the pipe 5a, an outer circumferential seal part 23 coming into tight contact with the circumferential surface of the through hole 7a, a return preventing part 24 which can be passed forcibly through the through hole 7a and engaging the front end side edge part thereof after passing through the through hole 7a, and a penetration preventing part 25 abutting against the rear end side edge part of the through hole 7a when the return preventing part 24 is passed forcibly therethrough.</p> |
