Azcue VR Series
Series VR: vertical in-line, single-stage, high-capacity centrifugal pumps with a rigid coupling, covering model configurations from 80/26 up to 250/40. Rated for continuous operation up to 90°C (130°C under requirement), with a mechanical shaft seal and clockwise (right-hand) rotation. Running speeds are 1450 and 2900 rpm at 50Hz, or 1750 and 3450 rpm at 60Hz, with IEC V1 motor mounting on the main pump and B3/B5 on the priming unit where fitted. Flanges follow DIN 2501 PN16 up to DN150 and PN10 from DN200 upward. The pump uses a rigid monobloc coupling directly linking the pump and motor; the impeller is mounted in reverse, balancing the axial forces on the shaft's ball bearings, so the suction and discharge pipelines don't need disconnecting for routine internal repair work. Volute casing and casing cover are bronze (G-CuSn5ZnPb/Rg5) or cast iron (GG25) as standard, with the impeller available in bronze or aluminium-bronze (G-CuAl10Ni), and a stainless steel shaft (X5CrNiMo18.10/AISI 316); nodular cast iron, stainless steel, and other bronze alloys are available under requirement.
The series is available in four executions. The standard VR has no priming pump. VR-EP uses an independent, electric motor-driven liquid ring priming pump with automatic switch-off, and VR-EF adds a mechanical float purger to prevent fluid discharge outside the priming pump. VR-VP instead uses an automated priming system operated by a compressed air venturi ejector.
Models
Reference Numbers
These reference numbers identify a part's position on the series diagram — the exact part fitted differs by model. To order, provide the reference number together with the model name and the serial number stamped on the nameplate.
Don't see the series or exact model? Send us your vessel details and the pump nameplate, and we'll confirm whether we can source it.