working pressure: 0,04 bar@ 20°C, weld slight coned top, weld coned bottom, openings top: manway 500 mm, (1) DN 100, (2) DN 250, (1) DN 200, openings sidewall: (1) DN 100, openings cone section: (1)bottom outlet nozzle DN 250, (1) DN 100, (1) DN 50,