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Calpeda N / N4

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.
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