A Flat Face Flange is a type of flange with a completely smooth and flat sealing surface.This design distributes pressure evenly across the entire gasket surface.It is mostly used in low-pressure systems and with fragile materials such as cast iron.Soft gaskets are commonly used with flat face flanges for better sealing.They are widely applied in water pipelines, building services, and low-pressure piping systems.Compared to Raised Face flanges, they handle less pressure but are easier to install .