| 摘要 |
PROBLEM TO BE SOLVED: To provide a connected water supplying pipe equipment in which the length of a length adjustable pipe section can be adjusted easily on the construction site in accordance with a distance between water feeding pipes of a water supplying piping system for supplying high-pressure water for fire-fighting from water supply ports so that the connecting work can be performed rapidly and securely, which is excellent in constructability, which is easy to disassemble in case of maintenance and inspection, which enables replacement work of parts to be performed surely and without difficulty, and which is simplified in structure so as to be produced and assembled easily, thereby reducing the production cost and the construction cost. SOLUTION: In the connected water supplying pipe equipment, a check valve A' and a water stop valve B are arranged in a pipe line extending between and connected to the primary-side and secondary-side water feeding pipes 1, 1' of the water supplying piping system P for supplying the water W for fire-fighting from the water supply ports J, J, and a drain valve C is provided on the primary side or/and the secondary-side with respect to the check valve. A receiving pipe 3 and an insertion pipe 4 one end of which is slidably inserted into the receiving pipe, constitute the length adjustable pipe section 2 the length of which can be adjusted in accordance with the distance L between the water feeding pipes 1, 1'. A check valve unit A is provided within the length adjustable pipe section. COPYRIGHT: (C)2007,JPO&INPIT
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