valve is driven by a 0,55kW gear manufactured by P.I.V. Antrieb Werner Reimers KG type FKSD42B3 serial number 392617G1 n1= 2800rpm and n2= 3 to 28rpm gear is driven by a 0.55 kW electrical motor manufactured by emod type eDF71L-2 serial number 1641286/251 D~/50Hz/220-380V/2810rpm, ExeG3 (2) openings: each opening is 200mm inside diameter and 340mm outside diameter valve has a drum with cells cells are 12mm deep and 50mm wide all mounted on a carbon steel base plate.