A waterproof door prepared for "ordinary" times against sudden water disasters. No tightening operation is required, and it demonstrates excellent flood prevention performance! 【*Demo units are on display in the showroom】
The waterproof door "Self-Tight Waterproof Door 3" does not require manual tightening operations and demonstrates excellent water intrusion prevention performance through 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 option for electric locks, making it suitable for situations where access control is required. 【We respond to the following needs】 ■ I want to implement flood prevention measures in buildings that may be at risk of flooding, such as those shown on hazard maps. ■ I want to minimize water intrusion damage to buildings during flooding events. ■ I want to avoid the risk of having to go on-site for water intrusion measures during flooding events. ■ I want to reduce the risk of damage caused by human error. ★ A demonstration unit is currently on display at the Kumahira Tokyo Nihonbashi showroom "K-BASE." We have novelties prepared for visitors. If you wish to visit, please feel free to contact us. *For more details about the product, please refer to the materials available for download in PDF format.
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basic information
【"Self-tight Waterproof Door 3" Specifications】 - Model: HWT-3A - Opening Method: Single Leaf - Ingress Prevention Performance: 0.001m3/h·m2 - Set Ingress Height: Below 3m - Effective Opening Dimensions: Width 600–900mm × Height 1800–2100mm - Weight: Approximately 180kg (for effective opening dimensions of 900×2000mm) - Compatible with permanently closed specific fire protection equipment (example specifications) *1 Performance values are all based on a specific gravity of 1.0 (freshwater) and the ingress height of 0.3–3m under static water pressure. For ingress heights below 0.3m, leakage of less than 0.0005m3 per hour is permitted (for standard effective opening dimensions). *2 Performance values are all based on a specific gravity of 1.0 (freshwater) under static water pressure. *3 This product is constructed in accordance with permanently closed specific fire protection equipment (example specifications). For more details about the product, please refer to the materials available for "PDF Download."
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For product details, please refer to the materials available for download in the "PDF Download" section.
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Company information
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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