DURAN® flat flange round bottom flask, flange DN 100 with NUT, 4000 ml

DURAN® flat-flanged round-bottom flasks, DN 100, 4000 ml Flat-flange vessels are large-volume reaction vessels which are regarded as an alternative to round-bottom flasks and consist of a base and a lid. These two parts are held together by means of a clamping ring. A seal or ground-glass grease prevents the ground-glass surfaces from jamming. Various standard ground joints in the lid allow the flat flange vessel to be combined with other components (e.g. dropping funnels, stirrer shafts, etc.). Plan flange vessels are well suited for preprative work such as general reactions, distillations, evaporations and dryings involving solid and viscous substances. Because of their walls, flat flange vessels are suitable for safe work under pressure and vacuum. Special features and advantages: Flange with groove: A sealing ring (O-ring) can be inserted into the groove, by which the vessel is tightly sealed Pressure and vacuum resistant due to the geometry and solid wall thickness Use up to the technically maximum possible vacuum and thus maximum safety for the user (observe safety instructions) Burnt-in and therefore permanently durable white printed image Application: Chemically and thermally demanding processes, Safe working under pressure or vacuum, At a maximum application temperature of 250 °C at the permissible operating overpressure, the temperature difference in the glass wall must not exceed 30 °C for plan flange reaction vessels.