In biopharmaceutical manufacturing, valves are mechanical devices used to control, regulate, or isolate the flow of liquids, gases, or biological process streams within manufacturing equipment, bioreactors, chromatography systems, and process pipework. They are critical components of GMP-compliant process engineering, and must meet stringent requirements for material compatibility (typically 316L stainless steel or single-use polymeric materials), sterility, cleanability (CIP/SIP), leak integrity, and regulatory compliance. Common valve types used in bioprocessing include diaphragm valves, ball valves, butterfly valves, and single-use aseptic valves, the latter increasingly adopted in flexible, multi-product CDMO facilities to minimize cross-contamination risk and turnaround time.
