Zirkulationspumpe mit Pumpenkopf und Flügelrad in Bronce, Welle in AISI 316, Motor IP 54 Construction
750 Watt, max. 250 L/ min, max. Head 19 m, Inlet 1 1/2" BSP, Outlet 1 1/2" BSP
Close-coupled centrifugal pumps; electric motor with extended
shaft directly connected to the pump up to 22 kW, new bracket
construction for standard motors (stub-shaft construction) from 30
to 75 kW with integrated thrust bearing.
Pump casing with axial suction and radial delivery on top, main
dimensions and performance according to EN 733.
B-NM(S): version with pump casing and lantern bracket/casing
cover in bronze. (the pumps are supplied fully painted).
Connections: Flanges according to PN 10, EN 1092-2.
Counter-flanges (on request)
Sizes Flanges
from NM 32/.. to NM 50/... Screwed flanges EN 1092-1, PN 16
Version with frequency converter (on request)
Applications
For clean liquids without abrasives, which are non-aggressive for
the pump materials (solids content up to 0,2%). For water supply.
For heating, air conditioning, cooling and circulation plants.
For civil and industrial applications.
For fire fighting applications. For irrigation.
Operating conditions
Liquid temperature from -10 °C to +90 °C.
Ambient temperature up to 40° C.
Total suction lift up to 7 m.
Maximum permissible working pressure up to 10 bar (16 bar for
NM 40/16,20; NM 50/12,16; NM 65/12,16,20,25; NM 80/16).
Continuous duty.
Motor
2-pole induction motor, 50 Hz (n ≈ 2900 rpm).
NM, NMS: three-phase 230/400 V ± 10% up to 3 kW;
400/690 V ± 10% from 4 to 75 kW.
Insulation class F. Protection IP 54 (IP 55 for NMS).
Motor suitable for operation with frequency converter from 1,1 kW.
Classification scheme IE3 for three-phase motors from 0,75 kW.
Constructed in accordance with: EN 60034-1; EN 60034-30-1.
