Ball valves are constructed around a full-bore design. This makes sure the product passes through the valve with no restrictions on the flow, and that there is only minimal pressure drop. This basic design allows cleaning and product recovery using pigging systems, and also makes this kind of valve ideal for use with viscous liquids and liquids containing solid or semi-solid particles. Alfa Laval ball valves for hygienic use bear the SBV and Tri-Clover® designations.