CALPEDA N, N4

Description

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).

Tecnical description

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.