FP40-400.12 Fan Pump Exchange Unit / FP40-400.12 Rotor Unit is 100% interchangeable with original Andritz FP40-400.12 Fan Pump, Th FP40-400.12 Exchange Unit made from duplex stainless steel 1.4460. FP Series Fan Pump is a low pulse and high efficient paper pulp pump, It is new standards in terms of efficiency, flexibility, and design. This double-suction pump series was designed for flow rates up to 20,000 mh and heads up to 220 m. The pumps can convey stock suspensions with consistencies of up to 2%. The fan pump supplied has a very high efficiency of 92% and lowest pulsation in order to guarantee perfect sheet formation. High efficiency and low pulsation Water With efficiencies of over 90%, FP40-400.12 Double Suction Split Case Pumps permanently help to save valuable energy.