Nk 40 200 172 Aa2f2aesbqqelw1 98545686 UNIAT University of Advanced Technologies. Non self priming, single stage, centrifugal pump designed according to ISO 5199 with dimensions and rated performance according to EN 733. Flanges are PN 16 with dimensions according to EN 1092 2. The pump has an axial suction port, a radial discharge port and horizontal shaft. It is of the back pull out design enabling removal of the motor, coupling, bearing bracket and impeller without disturbing the pump housing or pipework. The unbalanced rubber bellows seal is according to DIN EN 12756.