| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the generation of retained water in an end test device, and to achieve miniaturization and cost reduction by reducing portions being a fixed apparatus. <P>SOLUTION: The end test device 20 is provided on the end of a pipe 10a for supplying city water, mounted with a closed-type sprinkler head 18. The end test device 20 is separated into a fixed unit 20a made of a first T-joint 22, an end test valve 24, and a single-operation joint 26, and a portable unit 20b made of a single-operation connecting member 30, a second T-joint 28, a pressure gauge 32, an orifice 34 and a hose joint 36, and in an end test, the portable unit 20b is connected to the fixed unit 20a and a water discharge test is performed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
