Waters' "finger-tight" high-pressure vessels are designed for simple opening and closing. Vessel seals are Polyimide "C" cup type with an energized spring. The spring, under pressure, is energized and forces the inner lip to contact the surface of the threaded cap. The outer lip contacts the inner vessel wall, forming a pressure seal. Caps at each end of the vessel, along with a seal, have a frit assembly to provide even distribution of fluid during introduction. The vessel body is made of 17–4PH stainless steel, which is 60% stronger than the 300 series. Stainless steel reduces vessel weight and dimensions. The cap design, with spring–loaded seal, not only enhances safety, but also lends to automation for efficient loading and unloading of large vessels. Sizes available form 5 CC to 5 L. Pressure rated up to 680 BAR and temperatures up to 200 °C.
High Pressure Supercritical Fluid View Cells
View Cells are designed to provide user capability to view process, reactions, and phase conditions under high pressure. Two-single crystal windows, one in each cap of the vessel, allow the user to view the entire cross-section of the vessel. The view cell body and cap are made of non–magnetic material. A magnetic bar can be placed inside the vessel for stirrer capability by using a magnetic stirring plate. The vessels are simple, lightweight, and easy to use. Vessels are available in two window diameter configurations with 413 bar and 689 bar operating pressure range, as specified by user.
High Pressure Vessels and View Cell applications: