クマヒラ List of Products and Services

The "water-tight door" is a water-tight and waterproof facility designed to protect important items from flood damage during disasters. It features excellent operability, allowing for a one-action operation where the door is closed and the handle is turned, ensuring reliable water-tight performance in a short time. Additionally, we have developed a unique packing using proprietary technology. We have confirmed the water-tight performance through repeated experiments, assuming a maximum flooding height of 56 meters. 【Features】 ■ Can be operated quickly and accurately during flooding ■ Hinges that support smooth door operation ■ "Pressure-following packing" using proprietary technology ■ Conducted water-tight experiments assuming flooding of 56m ■ Seismic design *For more details, please refer to the PDF materials or feel free to contact us.

The waterproof door "Self-Tight Waterproof Door 3" does not require manual tightening operations and demonstrates 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 option for electric locks, 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 are 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 water intrusion measures during flooding events. ■ We 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.

In the water supply and drainage industry, it is important to protect facilities from flooding damage caused by heavy rain and river flooding. Particularly in water supply and drainage facilities, which are critical infrastructure, functional shutdowns due to flooding can have serious impacts on the local community. The Self-Tight Waterproof Door 3 reduces the risk of flooding and enhances facility safety by demonstrating high water-stopping performance without requiring manual tightening operations. 【Usage Scenarios】 - Entrances and exits of water supply and drainage facilities - Pump stations - Water purification plants - Sewage treatment facilities 【Benefits of Implementation】 - Reduction of the risk of facility shutdown due to flooding damage - Early recovery of facilities - Remote monitoring through integration with access control systems - Reduction of flooding risk due to human error