Stainless steel valves are often used in corrosive environments making the surface prone to degradation and discolouration. Therefore, surface treatment of the valve body is critical to ensure corrosion resistance and aesthetics

Electropolishing removes free iron, embedded contaminants and oxide scale from the surface of the submerged valve body forging in an electrolyte and passing an electric current. Electropolishing also reduces roughness by levelling micro-peaks and valleys and removes free iron to enhance chrome/nickel content, making the surface corrosion-resistant.