Definition:

Storm valve is used to discharge sewage or waste water, and can automatically close and prevent outboard water backflow of the side valve.

A valve installed at a side sewage or waste water outlet for discharging sewage or waste water outboard and automatically closing and preventing wind and wave intrusion. Also known as drain valve.

Brief Introduction of Principle

The flange shall be fastened at the specified height above the full load waterline on the side. The drain valve inlet is connected with the drain outlet. The disc is externally open and articulated. During drainage, the water pressure in the pipe will automatically flush the valve disc for drainage. When the outboard is impacted by wind and waves, the valve automatically closes due to external pressure.

Image of Angle Type Storm Valve