| 摘要 |
PROBLEM TO BE SOLVED: To provide a duplex meter unit for holding strength even when connection stress of a water meter and stress by ground displacement act thereon.SOLUTION: For the duplex meter unit, the upstream is branched to provide two or more rows of primary side pipes, secondary side pipes are provided for the same number of rows coaxially with each of the primary side pipes, a part between the primary side pipes and the secondary side pipes is turned to a meter attaching/detaching part, and a plurality of water meters are connected in parallel. The duplex meter unit includes a hoop-like metal frame provided with mounting holes of the same number as the number of rows on two front and rear frames facing each other on the primary side and the secondary side, the primary side pipes and the secondary side pipes are fixed to each of the two front and rear frames so as to be communicated with the mounting holes, and displacement of the primary side pipes and the secondary side pipes is restrained by two left and right frames integrated with the two front and rear frames. The two front and rear frames are divided by a mounting hole unit and the metal frame comprises a pair of side frames which are freely connectable to each other and are U-shaped in the plan view, and an intermediate frame which is freely connectable between the side frames and is straight in the plan view. |
