- Top openings: (2) 600mm (1 with manway cover), (2) 400mm (with beavertaiopenings top: (2) 600mm (1 with manway cover), (2) 400mm (with beavertail baffles), (7) 200mm, jacket: (1) 200mm, (8) 100mm, (1) 25mm, bottom: (1) 150mml baffles), (7) 200mm - Jacket openings: (1) 200mm, (8) 100mm, (1) 25mm