valve is driven by a gear, manufactured by P.I.V. Antrieb Werner Reimers KG, type FKSD42B3, serial number 401244G5 n1= 2800rpm and n2= 4 to 44rpm gear is driven by a 0.55 kW electrical motor, manufactured by emod, type eDF71L-2, serial number 548601/25D~/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 p