Description
-Horizontal ring section, multistage, centrifugal pumps with closed impellers and di¬users in end suction design.
-7 Models from DN 40 up to DN 150 discharge flange diameter.
-Suction nozzle flanges conform to EN 1092 – 2 / PN 16 and discharge nozzle flanges conform to EN 1092 – 2 / PN 40 (PN 63) (For steel or stainless steel casing pumps, flanges comform to related pressure class ratings defined in EN 1092 – 1)
-Discharge flange is on top for standard production, upon request di¬erent discharge flange positions can be applied.
-All impellers are balanced dynamically or statically according to ISO 1940 class 6.3.
-Axial thrust is balanced by impeller balancing holes system.
-Direction of rotation is always counter clockwise viewed from drive end. That’s why these pumps can not be accouppled directly with diesel engines.
-Bearings of ARS-U type pumps are grease lubricated. Sleeve bearing used in the suction side is lubricated by the pumping liquid.
