Sanitary valves are vital components in pharmaceutical and bioprocess systems, engineered to provide leak-free flow control while maintaining hygienic integrity. Fabricated from high-grade stainless steel (commonly 316L), with minimal dead-legs, polished internals and CIP/SIP compatibility, these valves help prevent contamination, bio-fouling and product loss. Common types include ball, butterfly, diaphragm and check valves, each tailored for applications such as buffer transfer, WFI loops, product filling, venting and tank bottom discharge. Selecting the right valve means considering port size, actuation method (manual, pneumatic or electric), finish specification (e.g., Ra ≤ 0.5 µm), connection type and pressure/temperature ratings. Properly specified sanitary valves enhance process reliability, support regulatory compliance and ensure long-term cleanliness in critical fluid systems.