Cost-saving construction type reverse flow prevention door for unmanned, non-powered rivers.
To prevent backflow from rivers during water discharge, various gates are installed at drainage outlets. It is common to install flap gates that automatically open and close based on the difference in water levels inside and outside for small drainage outlets. In such cases, ancillary work such as concrete pouring, water replacement using drainage pumps, and temporary closures is required for installation. Yamato Engineering has focused on this aspect and developed a cost-saving type of Hume flap (automatic drainage device) that can be installed simply by inserting it into the end of a Hume pipe and tightening bolts. 【Features】 ○ No need for a watertight stop device - The structure prevents backflow by having a specially shaped rubber closely adhere to the thick wall of the Hume pipe. ○ Attention to corrosion resistance - There are two types of materials: steel (SS) and stainless steel (SUS). ○ Products are delivered promptly - They will arrive at your location within one week of your order. For more details, please contact us or download the catalog.
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【Specifications】 [DHF-15] ○ Inner diameter of the flue pipe φ (mm) 150 ○ Flue pipe compatible slope 3.69% 2.11° ○ Band width (mm) 75 ○ Weight (kg) SS400: 12.7 SUS304: 12.8 [DHF-20] ○ Inner diameter of the flue pipe φ (mm) 200 ○ Flue pipe compatible slope 3.31% 1.90° ○ Band width (mm) 75 ○ Weight (kg) SS400: 15.1 SUS304: 15.0 [DHF-25] ○ Inner diameter of the flue pipe φ (mm) 250 ○ Flue pipe compatible slope 5.57% 3.19° ○ Band width (mm) 75 ○ Weight (kg) SS400: 18.1 SUS304: 18.0 ● For more details, please contact us or download the catalog.
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The theme is coexistence with nature, focusing on creating an environment where aquatic creatures can live safely. Yamato Engineering is not only a manufacturer of sluice gate equipment but also utilizes its specialized technical expertise to engage in various operations related to sluice gates, weirs, and pumping facilities, as well as the maintenance, inspection, repair, and servicing of associated machinery, which has been a core business since its establishment.