Keterangan :
Single and twin impeller centrifugal pumps
NM, NMS
Close coupled centrifugal pumps with flanged connections
Technical data
Construction
Close-coupled centrifugal pumps; electric motor with shaft directly connected to the pump.
Pump casing with axial suction and radial delivery dimensions and performance according to EN 733.
B-NM, B-NMS: bronze version
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
-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.
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
Classification scheme IE2 for three-phase motor from 0, 75 kW.
Constructed in accordance with: EN 60034-1; EN 60034-30
Materials
Components : NM, NMS
Pump casing : Cast iron
Lantern bracket NM
Casing cover for NMS
Impeller : Cast iron
GJL 200 EN 1561
Shaft : AISI 303 up to 2.2 kW
AISI 430 from 3 kW to 75 kW
Mechanical seal : Carbon - Ceramic - NBR
Counter-flanges : Steel Fe 430B UNI 7070
Spesifications
Type : NM 40/ 12 CE
P2 1, 5 kW
2 HP
Q m3/ h : 15 - 16.8 - 18.9 - 21 - 24 - 27 - 30 - 33 - 37, 8 - 39 - 42 - 45 - 48 - 54
Q l/ min 250 - 280 - 315 - 350 - 400 - 450 - 500 - 550 - 630 - 650- 700 - 750 - 800 - 900
H m : 17, 5 - 17 - 16, 5 - 16 - 15 - 13, 5 - 12 - 10, 5 - 7, 5 - 6, 5
rpm : 2900 rpm
Freq. : 50 Hz