This device is designed to automatically open and close drainage gates based on water level differences in the sea, rivers, or streams, eliminating the need for manpower or power.
Non-powered sluice gates, which are installed for seawater backflow prevention in rivers, sewers, and other waterways, play a crucial role in preventing seawater from flowing backwards. In emergencies, these gates are engineered to rise and close through buoyancy.
When positioned at the entrances of underground facilities, these gates can protect against localized water damage. They close via buoyancy, thereby preventing flooding.
Additionally, they are suitable for use as gates at seawall openings
Passive floodgate/ Backflow prevention device for river sluice, drain pipe gate,
seawall, breakwater (places that is difficult to control artificially in case of emergency)
Shores, and streams
| Name | Type | ID. Number | Material |
| Gate | 1.0×1.0 | 23321759 | STS-304, 316(Seawater), EPDM Packing |
| Frame | 1.0×1.0 | 23324740 | STS-304, 316(Seawater) |
| Gate | 1.5×1.5 | 23321760 | STS-304, 316(Seawater), EPDM Packing |
| Frame | 1.5×1.5 | 23324741 | STS-304, 316(Seawater) |
| Gate | 2.0×2.0 | 23324850 | STS-304, 316(Seawater), EPDM Packing |
| Frame | 2.0×2.0 | 23324856 | STS-304, 316(Seawater) |
| Gate | 2.5×2.5 | 23324851 | STS-304, 316(Seawater), EPDM Packing |
| Frame | 2.5×2.5 | 23324857 | STS-304, 316(Seawater) |
| Gate | 3.0×3.0 | 23324852 | STS-304, 316(Seawater), EPDM Packing |
| Frame | 3.0×3.0 | 23324858 | STS-304, 316(Seawater) |
| Gate | 3.5×3.0 | 23325769 | STS-304, 316(Seawater), EPDM Packing |
| Frame | 3.5×3.0 | 23325770 | STS-304, 316(Seawater) |
| Gate | 4.0×3.0 | 23324853 | STS-304, 316(Seawater), EPDM Packing |
| Frame | 4.0×3.0 | 23324859 | STS-304, 316(Seawater) |
| Gate | 4.5×3.0 | 23325773 | STS-304, 316(Seawater), EPDM Packing |
| Frame | 4.5×3.0 | 23325771 | STS-304, 316(Seawater) |
| Gate | 5.0×3.0 | 23325774 | STS-304, 316(Seawater), EPDM Packing |
| Frame | 5.0×3.0 | 23325772 | STS-304, 316(Seawater) |
| Gate | 5.5×3.0 | 23324854 | STS-304, 316(Seawater), EPDM Packing |
| Frame | 5.5×3.0 | 23324860 | STS-304, 316(Seawater) |
| Gate | 6.0×3.0 | 23324855 | STS-304, 316(Seawater), EPDM Packing |
| Frame | 6.0×3.0 | 23324861 | STS-304, 316(Seawater) |
