| 摘要 |
<p>PURPOSE:To provide a piping method by using one-touch type couplings. CONSTITUTION:A universal header 13 (one-touch type) is installed to a sprinkler auxiliary main pipe 11, and a copper flexible pipe 15A (with a one-touch type coupling) is piped from the flexible header 13. At the tip of the copper flexible pipe 15A, a sliding type self-sealing coupling 17 is installed, which is provided to the surface of a ceiling 650 (existing), and a sprinkler head 3 (existing) is installed. Almost all the couplings are made in a one-touch type or a one-touch type with self-sealing.</p> |
