Sump and Sewage Pump

Four new features have been incorporated into Darling designs to reduce maintenance and repair costs to the very minimum. 1. Adjustment of the impeller for wear at inlet is made in factory and thrust bearing will keep permanent adjustment and will relieve motor from all thrust. 2. A casing wearing ring of bronze is provided to simplify repair work should any wear take place (in all pumps except the smaller sizes of bilge pumps). 3. The discharge elbow has been made an integral part of the motor base casting and this, together with the pump discharge being located on top of the casing, positions the discharge pipe close to the pump shaft. The result is greater rigidity of the assembly (especially important during shipment) and a reduction in the pit opening required to only 9 1/2” for the smaller pumps and 20” for the larger ones.