SVⅡ-FCD 50 to 200,
SVⅡ-FCD-RMH 50 to 200
SVⅡ-FCD-A 50 to 200,
SVⅡ-FCD-A-RMH 50 to 200
This Valve is installed in front of drain pipe in dwelling areas at outboard (toilet, bathroom, kitchen, washing-corner such as this displacement), when an intense wave drives outside of vessel, the valve will stop sea water enter into the vessel.
This valve is request to make from to prevent for discharge the sewage and solid that mix up together, the valve is a simple system that made with only flap valve.