The fixed valve trays has valves in a bridge like construction extruded from the tray deck. This construction allows for increased stiffness to the tray deck. These valves provide large vapor passages and operate at low pressure drops with high capacities. These trays exhibit excellent fouting resistance characteristics.
The fixed valve trays with V- shaped grids combines the attributes of sieve holes and float valves. These valves provide large vapour passages and operate at low pressure drops with high capacities. The rectangular valves extruded from tray decks are oriented parallel to the liquid flow.