horizontal, vertical or spherical. This type of separator is commonly called a free-water knockout because its main use is to
remove any free water that can cause problems such as corrosion and formation of hydrates or tight emulsions, which are difficult
to break. A free-water knockout is commonly called a three-phase separator because it can separate gas, oil and free water. The
liquids that are discharged from the free-water knockout are further treated in vessels called treaters. Free-water knockout is
abbreviated as FWKO.
