Calpeda N4 50
Construction
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.
