When a quick-opening port is required in a process application, this sanitary hinged sight port, which incorporates the use of the MetaClamp®, can be used up to 150 psi, depending on size. It is particularly suitable where a process requires sampling or additives, or when it is necessary to clean the inside of the sight glass from time to time. Assembly includes sanitary clamp and gasket. Accessories available include Lumiglas Luminaries and wipers.