Tip: when replacement pumps are required for older pump models you have to realise that these pumps have evaluated over time in efficiency. So a 1:1 exchange will probably lead to a much higher capacity than expected with the risk of too high suction line velocities etc. We recommend to always recalculate new replacement pumps against the actual process requirements. Please contact us in case of doubt. Calculate with 1 m/sec max suction line speed to be on the safe side.