Protect important equipment and areas from flooding with top-class water resistance performance.
The "Handle Tight Waterproof Door," which can handle water heights of up to 30 meters, and the "Self Tight Waterproof Door 3," which does not require tightening operations, are equipped with special mechanisms such as dual-axis hinges that utilize water pressure to ensure the door is tightly sealed. The leakage amount is only 0.001 cubic meters per hour per square meter of door area, demonstrating top-class flood prevention performance equivalent to JIS Ws-6 and JSTM HWL-5 standards. By keeping the leakage amount low even during prolonged flooding, the risk of damage can be reduced.
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basic information
For detailed specifications and performance, please check our website or catalog. Additionally, there may be cases where we can accommodate requests beyond the listed specifications, so please consult us through the inquiry form or similar means. Self-tight waterproof door 3 (HWT-3A): Suitable for water immersion height of 3 meters or less, single opening, compliant with specific fire protection equipment. Handle-tight waterproof door 3 (HWT-3M): Suitable for water immersion height of 3 meters or less, single opening and double opening, compliant with specific fire protection equipment. Handle-tight waterproof door 5 (HWT-5M): Suitable for water immersion height of 5 meters or less, single opening and double opening. Handle-tight waterproof door 10 (HWT-10M): Suitable for water immersion height of 10 meters or less, single opening and double opening. Handle-tight waterproof door 30 (HWT-30M): Suitable for water immersion height of 30 meters or less, single opening.
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Applications/Examples of results
We protect important areas such as mechanical rooms in buildings from flooding damage. Our lineup accommodates a wide range of flood heights, making it suitable for installation in basements and for submersion.
Company information
Kumahira Co., Ltd. has been providing physical security products that "protect the important values of our customers" since its founding 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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