It is a buoyancy-type water stop board that automatically stands up using only the buoyancy of water.
A water buoyancy-operated shut-off valve. It provides peace of mind during nighttime or in unmanned facilities, requires no power supply, and can accommodate large openings.
Inquire About This Product
basic information
● It automatically stands up using the buoyancy of the submerged water, so no power supply is needed. It will also automatically stand up during power outages, which are common during disasters. ● The design opening width can accommodate large openings from 1m to 10m. It can be installed according to the application, such as at building entrances or parking lot entrances. ● The load-bearing capacity during the storage of the water stop board is 14 tons. Custom options are available for up to 25 tons, making it suitable for areas where large trucks pass.
Price range
Delivery Time
Applications/Examples of results
Main installation locations ○ Opening with a front ○ Parking lot entrance and exit
catalog（1）
Download All Catalogs
Company information
Since its founding in 1955, Bunka Shutter has been a comprehensive building materials manufacturer that produces and sells various types of shutters, building materials for commercial use, and building materials for residential use. Under the two concepts of "Life In" and "Lifelong Partnership," we strive to provide products developed from the perspective of everyday users and to establish a lasting trust relationship with our customers through essential after-sales maintenance systems, aiming to offer products and services that contribute to better living.
