When there is any risk of flood by river level or high tide, automatic blocking is made by buoyancy of buoy.
If the rivel level or sea level decreases disk is open by self-weight and it can prevent flood. It can prevent backdraft by automatic open/close.
9, Hwajeonsandan 6-ro 66beon-gil, Gangseo-gu, Busan, Republic of Korea
(Old Address : 9, Hwajeonsandan 6-ro 66beon-gil, Gangseo-gu, Busan, Republic of Korea)
Tel : +82-51.831.9636-7
Fax : +82-51.831.1830
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