Double-Flap Sluices (DKS)

Two flap shutters mounted one on top of the other, form a double-flap sluice. Double-flap sluices are used for bulk material to be conveyed to another pressure level. Contrary to the cellular wheel sluice, the double-flap sluice has no difficulty with high temperatures, big grain sizes, large flow capacities and high difference pressures. It cannot block up, has almost no wear and tear and the foreign air dueto clearance losses can be neglected. The over-all height, however, is greater and the discharge operates gradually. The double-flap sluice is in particular suited for such cases where the charging is made into a higher pressure, since the difference pressure is pressing the flap against the outlet. Shall, however, the charging be made into a lower pressure, the lever system and the drive must be reinforced in case of higher pressure differences.