Passive backflow prevention device blocks drainage through the operation of door that uses buoyance, which occurs according to the rise of water level in case of heavy rain, to prevent backflow, and lowers the backflow water level while opening the drainage due to the weight of opening/closing door.
Passive odor prevention device blocks various odors caused by
insects or mosquitoes inside the sewer when the sewer is blocked
due to the weight of opening/closing door, creating a pleasant
residential environment. The door opens by buoyancy to allow
smooth drainage
Address : 376-25, Hyundaikia-ro, Namyang-eup, Hwaseong-si, Gyeonggi-do, Republic of Korea
Website : http://http://koreajg.com