POMPA CALPEDA B-NM 32/12F

Construction

Close-coupled  centrifugal pumps : Electric motor with extended shaft directly connected to the pump up to 22 kW, New bracket construction for stadard 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.

NM(S): version with pump casing and lantern bracket in cast iron
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 Screwed flanges EN 1092-1, PN 16

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 the fighting applications. For Irrigation.

Operating conditions

Liquid temperature from -10⁰C to +90⁰C
Ambient temperature up to 40⁰C
Total suction lift up to 7 m.
Maximum permissible working pressure up to 10 bar ( 16 bar for NM 32L/16,20; NM 40/16,20; NM 50/12,16; NM 65/12,16,20,25; NM 80/16; NM 100/20).
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

The NM EI pumps are available with power from 0,55 kW up to 22 kW, the pumps are equipped with I-MAT installed on board which allows to realize a variable-speed system extremely compact and efficient, ideal in applications of water supply and in the distribution of hot and cold water.

Advantages

• Energy saving
• Compact design
• Easy to use
• Programmable to suit the system requirements
• Reliability.

Construction

The system comprises of:

• Pump
• Induction motor
• I-MAT Frequency Converter
• Motor adapter for the motor mounting of the frequency converter
• Connection cable between frequency converter and induction motor
• Transducers

Main Features

Rated motor power output from 0.55 kW to 22 kW
Control range from 1750 to 2900 rpm ( 2-pole )
Protection against dry running
Protection against operations with closed valve ports
Protection against system leakages
Protection against overcurrent in the motor
Protection against overvoltage and undervoltage of the power supply
Protection against current unbalances between phases.

Specifications :

• Rated Motor Power Output :0.55 kw, 0.75 HP
• 230 V
• Weight : 27 kg