Sulzer Pumps has increased its range of pump impellers available. The single-vane Contrablock Plus impeller was launched with the ABS submersible sewage pump XFP in 2009. Now, both 2-vane and 3-vane impellers have been added to the series. Contrablock Plus impellers are designed for handling and blockage resistance, providing free solids passage of at least 75 mm (3 inches) through the impeller.
With the addition of multi-vane impellers, the Contrablock Plus series extends from 1.3 kW (1.8 HP) / DN80 (3 inch) up to 400 kW (536 HP) / DN400 (16 inch) models of the ABS submersible sewage pump XFP. All of the impellers are open and all feature an adjustable bottom plate that lets the operator easily maintain efficiency and reliability throughout the pump lifetime, according to Sulzer.