Flasks, round bottom, flat flange, 20000 ml, flange DN 150 with groove

Pressure and vacuum resistant due to the wall thickness and geometry. Groove for O-ring seal. Note: At the maximum usage temperature of 250°C and the maximum operating pressure, the temperature difference in the glass wall of the flat flange reaction vessels must not exceed 30°C. Typical applications: reactions under pressure and/or high temperature.