Descrizione

pompa Calpeda N4 125-250A/A Long Coupled Centrifugal Pump. Calpeda N4 125-250A/A Long Coupled Centrifugal Pump 415v - 50002760037Construction Single-stage end-suction centrifugal pumps, with bearing bracket. The electropumps N, B-N, N4, B-N4 series comply with the European Regulation no. 547/2012 in force starting from 01.01.2013. Nominal duty points and main dimensions in accordance with EN 733. Back Pull-Out construction, for simple and quick dismantling and reassembly. N, N4: version with pump casing and lanter bracket in cast iron. B-N, B-N4: version with pump casing and lanter bracket in bronze (the pumps are supplied fully painted). Rated speed of rotation (50 Hz): N = 2900 rpm. ; N4 = 1450 rpm. Connections: PN 10 flanges EN 1092-2. Counter-flanges(on request) from 32-160 to 50-250 : Screwed flanges PN 16 EN 1092-1. from 65-125 to 150-400 : Flanges for welding PN 10 EN 1092-1. Shaft sealing: – Standardized mechanical seal in accordance with ISO 3069. – Stuffing box seal (on request).Applications - For clean liquids, without abrasives, which are non-aggressive for the pump materials (contents of solids up to 0.2%). - For water supply. - For heating, air conditioning, cooling and circulation plants. - For civil and industrial applications and for agriculture. - For fire fighting applications. - For irrigation.