PALL CORP. Membrane separation and purification technologies ALFA LAVAL Life Science Division Centrifuges, sanitary heat exchangers TENERGY CHRIST DI water, USP/WFI systems LA CALHENE Product containment and isolation systems. STAINLESS TECHNOLOGY Stainless steel tanks and containers SciLog Process development separation systems. ASEPCO Radial-Diaphragm sanitary valves. ATMOSTECH Laminar flow units for clean rooms.