Alfa Laval SBV Sanitary Ball Valve Ball valves Introduction The Alfa Laval Sanitary Ball Valve (SBV) is a hygienic ball valve designed with a bore diameter the same size as the pipeline diameter. The full-bore design with zero flow restriction and minimum pressure drop makes the SBV the optimum choice to handle high-viscosity or particulate liquids. It is also ideal for use in pigging systems to prevent product waste and optimize plant performance. Application The Alfa Laval SBV is ideal for use across the dairy, food, beverage, brewery, chemical and many other industries. All ball valves feature a cavity behind the ball. General considerations must be considered when selecting ball valve configuration vs. product and application. Benefits • Reliable full-flow performance, especially for pigging systems • Compact, straightforward hygienic design • Versatile operation with automated or manual control • Durable and water hammer-safe Standard design The Alfa Laval sanitary ball valve consists of a valve body and two body flanges, a ball fitting into sealing seats, and a stem connecting to either a pneumatic actuator or a manual handle. The actuator is maintenance-free and prepared for position indication with inductive proximity switches. Actuated valves are delivered normally closed (NC) and can easily be rebuilt to normally open (NO). The valve can also be fitted with the Alfa Laval sensing and control unit. Two inspection holes in the bonnet connecting the valve body and actuator enable easy inspection of the stem seal for tightness. Standard design enables product recovery using pigging systems. To optimise valve cleaning; a cavity cleaning option is available improving cleaning of the cavity of the valve. The optional cavity fillers can further minimize product volumes in the cavity of the valve. Considerations are to be made on cleaning, as this option is not available in combination with cavity clean option. Using ball valve technology; please consider valve and valve configuration (cavity filler or cavity cleaner) vs. product and cleaning parameters e.g. products with high viscosity, high sugar or high protein content vs. chemical, heat and time of cleaning. Alfa Laval recommend that products are not left to dry in the valve, as cleaning could be more demanding in e.g. time, heat and consumption of cleaning medias. Working principle The Alfa Laval SBV sanitary ball valve has a precision-made ball with full bore positioned inside the valve body between two flanges and two PTFE valve seats. A 90° rotation of the valve stem enables opening or closing the valve. A specially selected PTFE-grade material secures long lifetime. The use of spring- loaded, self-adjusting seal rings ensures the reliability of the 18
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