| 摘要 |
PROBLEM TO BE SOLVED: To provide a water flow detector capable reducing whole size and weight by shortening face-to-face dimension and surely detecting flowing water by improving responsibility during sprinkler operation while preventing the erroneous operation.SOLUTION: In the inside of a short cylindrical wafer type body 1, a check valve mechanism 2 is provided, and in an outer peripheral surface 1a of the body 1, a pedestal 10 for attaching a pressure gauge 3 of primary side and secondary side, an attachment pedestal 11 for attaching a switch mechanism 4, and a drain port part 12 for attaching an exhaust valve mechanism 5 are respectively provided. The pedestal 10, the attachment pedestal 11 and the drain port part 12 are positioned within a range of face-to-face dimension D of the wafer type body 1. |
