A waterproof door that prepares for "sudden" flooding with "regular" measures. No tightening operation is required, and the leakage amount at water levels of 0.3 to 3 meters is 0.001 m³/h·m².
The waterproof door "Self-Tight Waterproof Door 3" does not require manual tightening operations and exhibits excellent water intrusion prevention performance with its normal self-closing action. With a door thickness of 40mm, comparable to standard sash doors, it can withstand water levels up to 3m. It also offers an optional electric lock feature, making it suitable for situations where access control is required. 【We respond to the following needs】 ■ We want to implement flood prevention measures in buildings that may be at risk of flooding, such as those indicated on hazard maps. ■ We want to minimize water intrusion damage to buildings during flooding events. ■ We want to avoid the risk of having to go on-site for flood prevention measures during flooding events. ■ We want to reduce the risk of damage caused by human error. ★ We will be exhibiting at the "Crisis Management Industry Exhibition" held at Tokyo Big Sight from October 9. Currently, we have a demonstration unit on display at the Kumahira Tokyo Nihonbashi showroom "K-BASE." We have prepared novelties for visitors. Please feel free to contact us if you wish to visit. *For product details, please refer to the materials available for download in PDF format.
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【Exhibition Overview】 Name: Crisis Management Industry Exhibition (RISCON TOKYO) 2024 Date: October 9 (Wed) - 11 (Fri), 2024, 10:00 - 17:00 Venue: Tokyo Big Sight, West Hall 1 & 2 【'Self-tight Waterproof Door 3' Specifications】 - Model: HWT-3A - Opening Method: Single Leaf - Flood Prevention Performance: 0.001m3/h·m2 - Set Flood Height: Below 3m - Effective Opening Dimensions: Width 600–900mm × Height 1800–2100mm - Weight: Approximately 180kg (for effective opening dimensions of 900×2000mm) - Compliant with permanently closed specific fire protection equipment (example specifications) *1 Performance values are based on a specific gravity of 1.0 (freshwater) and measurements at a static water pressure with a flood height of 0.3 to 3m. For flood heights below 0.3m, a leakage of less than 0.0005m3 per hour is permitted (for standard effective opening dimensions). *2 Performance values are based on a specific gravity of 1.0 (freshwater) and measurements at static water pressure. *3 This product is constructed in accordance with the specifications for permanently closed specific fire protection equipment (example specifications).
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For product details, please refer to the materials available for download in the "PDF Download" section.
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Kumahira Co., Ltd. has been providing physical security products that "protect the important values of our customers" since its establishment in 1898. In addition to vault equipment for financial institutions, we have expanded our business to include security systems such as access control and security gates. Furthermore, we offer long-term and detailed support through our sales network across the country.
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