Frontiers NK cell subsets and dysfunction during viral infection: a Do Natural Killer Cells Secrete Antibodies at Erin Wright blog Nueva 450NK CFMOTO Chile NK Nordiska Kompaniet Nk 40 315 336 Ay1f2aesbqqexw1 98581782. 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.