KM Type Backflow Prevention Simple Flap Gate 'KMG Model'

The main body is made of PVC! It continuously drains rainwater into the waterway, and during high water levels, the flap gate closes.

The "KMG type" is a simple flap gate (backflow prevention valve) made of PVC, installed on the waterway side of drainage pipes such as rainwater drainage pipes, to prevent backflow during rising water levels. Under normal conditions, it allows rainwater drainage to flow into the waterway, and during rising water levels, the flap gate closes to prevent backflow. Recently, there has been an increase in its use for drainage pipes installed on river parapet walls. It is also used to prevent the intrusion of pests from drainage pipes and to act as a deodorizing valve. Since it is installed to cover the discharge outlet, it can be used without being restricted by the shape of the outlet. The main body is equipped with a watertight packing and is fixed with anchor bolts. The anchor bolts are included with the product. 【Features of KMG Type】 ■ The main body is made of PVC ■ Convenient for easily installing a flap gate ■ The main body comes with watertight packing ■ The main body is fixed using anchor bolts ■ Compatible outlet sizes up to 1,000mm square Custom sizes can also be produced as long as they do not exceed the maximum size. ■ Applicable water depth: KMG-100 to 800 is up to 2m, KMG-850 to 1000 is up to 1.5m ■ It does not provide 100% watertightness *For more details, please refer to the PDF document or feel free to contact us.