In-line Pumps Construction Close-coupled, single-impeller, centrifugal pumps; electric motor with extended shaft directly connected to the pump. Pump casing with suction and delivery connections with the same diameter and on the same axis (in-line). Connections: Flanges PN 10, EN 1092-2. Counterflanges (on request) Sizes Flanges NR,NR4 32,40,50,65 Screwed flanges PN 16, EN 1092-1 NR4 100, NR4 125 Flanges for welding PN 10, EN 1092-1 Version with frequency converter (on request) Applications For clean liquids, without abrasives, which are non-aggressive for the pump materials (contents of solids up to 0.2%). For heating, conditioning, cooling and circulation plants. For civil and industrial applications. When low noise operation is required (n ≈ 1450 rpm). 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). NR : three-phase 230/400 V ± 10% up to 3 kW; 400/690 V ± 10% from 4 to 18,5 kW. NRM : single-phase 230 V ± 10%. 4-pole induction motor, 50 Hz (n ≈ 1450 rpm). NR4: three-phase 230/400 V ± 10% up to 3 kW; 400/690 V ± 10% for 4 kW. NRM4: single-phase 230 V ± 10%. Insulation class F. Protection IP 54. Motor suitable for operation with frequency converter from 0,75 kW for NR4 and from 1,1 kW for NR. Classification scheme IE3 for three-phase motors from 0,75 kW. Constructed in accordance with EN 60034-1, EN 60034-30-1. EN 60335-1, EN 60335-2-41. Materials Component Material Pump casing Cast iron GJL 200 EN 1561 Lantern bracket Impeller Cast iron GJL 200 EN 1561 (Brass P-Cu Zn Pb 2 EN 1982 for NR-NR4 32,40,50) Shaft Chrome-nickel steel AISI 303 for pumps up to 1.1 kW Chrome steel AISI 430 for pumps from 1.5 to 18,5 kW Mecanical seal Carbon - Ceramic - NBR Counterflanges Steel Fe 42 UNI 7070 Special features on request - Other voltages. - Protection IP 55. - Frequency 60 Hz - Special mechanical seal. - Higher or lower liquid or ambient temperatures. - Motor suitable for operation with frequency converter up to 0,55 kW for NR4 and up to 0,75 kW for NR. Coverage chart n ≈ 2900 rpm n ≈ 1450 rpm 2 3 4 5 20 10 30 40 50 m 2 3 1 4 5 10 20 30 40 50 150 200 m /h l/min 500 300 400 3 Q H 5 20 10 30 40 50 100 m 6 10 15 20 30 40 50 3 4 5 100 100 m /h l/min 20 50 40 1000 100 1500 200 500 300 50 400 1000 100 1500 3 Q H NR4 50/250 NR4 50/200 NR4 32/200 NR4 32/160 NR4 40/200 NR4 40/160 NR4 50/160 NR4 50 NR4 65 NR4 100 NR4 125 NR4 65/250 NR4 65/200 NR4 65/160 NR4 65/125 NR4 n ≈ 1450 rpm NR 50/250 NR 50 NR 65/250 NR 65/200 NR 65/160 NR 65/125 NR 50/200 NR 50/160 NR 50/125 NR 40/125 NR 40/160 NR 40/200 NR 32/160 NR 32/200 NR n ≈ 2900 rpm The electropumps NR, NR4 series comply with the European Regulation no. 547/2012. NR,NR4
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In-line Pumps
ConstructionClose-coupled, single-impeller, centrifugal pumps; electricmotor with extended shaft directly connected to the pump.Pump casing with suction and delivery connections with thesame diameter and on the same axis (in-line).
Connections: Flanges PN 10, EN 1092-2.
Counterflanges (on request)Sizes FlangesNR,NR4 32,40,50,65 Screwed flanges PN 16, EN 1092-1NR4 100, NR4 125 Flanges for welding PN 10, EN 1092-1
Version with frequency converter (on request)
ApplicationsFor clean liquids, without abrasives, which are non-aggressive forthe pump materials (contents of solids up to 0.2%).For heating, conditioning, cooling and circulation plants.For civil and industrial applications.When low noise operation is required (n ≈ 1450 rpm).
Operating conditionsLiquid 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.
Motor2-pole induction motor, 50 Hz (n ≈ 2900 rpm).NR : three-phase 230/400 V ± 10% up to 3 kW;
400/690 V ± 10% from 4 to 18,5 kW.NRM : single-phase 230 V ± 10%.4-pole induction motor, 50 Hz (n ≈ 1450 rpm).NR4: three-phase 230/400 V ± 10% up to 3 kW;
400/690 V ± 10% for 4 kW.NRM4: single-phase 230 V ± 10%.Insulation class F. Protection IP 54.Motor suitable for operation with frequency converter from0,75 kW for NR4 and from 1,1 kW for NR.Classification scheme IE3 for three-phase motors from 0,75 kW.Constructed in accordance with EN 60034-1, EN 60034-30-1.
EN 60335-1, EN 60335-2-41.
MaterialsComponent MaterialPump casing
Cast iron GJL 200 EN 1561Lantern bracketImpeller Cast iron GJL 200 EN 1561 (Brass P-Cu Zn Pb 2 EN 1982 for NR-NR4 32,40,50)Shaft Chrome-nickel steel AISI 303 for pumps up to 1.1 kW
Chrome steel AISI 430 for pumps from 1.5 to 18,5 kWMecanical seal Carbon - Ceramic - NBRCounterflanges Steel Fe 42 UNI 7070
Special features on request- Other voltages. - Protection IP 55. - Frequency 60 Hz- Special mechanical seal. - Higher or lower liquid or ambient temperatures.- Motor suitable for operation with frequency converter up to 0,55 kW for NR4 and up to 0,75 kW for NR.
The electropumps NR, NR4 series comply with the European Regulation no.547/2012.
NR,NR4
In-line PumpsNR EI, NR4 EIPumps with frequency converter
The NR EI, NR4 EI, pumps are available with power from 0,25 kW up to 18,5 kW, the pumps are equipped with I-MATinstalled on board which allows to realize a variable-speed system extremely compact and efficient, ideal in applications ofwater supply and in the distribution of hot and cold water. The pump is equipped with transducers suitable for operation and is already programmed at the factory.
Advantages- Energy saving- Compact design- Easy to use- Programmable to suit the system requirements- Reliability
CostructionThe 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 featuresRated motor power output from 0,25 kW to 18,5 kWControl range from 1750 to 2900 rpm (2-pole) Control range from 870 to 1450 rpm (4-pole)Protection against dry runningProtection against operations with closed valve portsProtection against system leakagesProtection against overcurrent in the motorProtection agains overvoltage and undervoltage of the power supplyProtection against current unbalances between phases
Constant pressure mode with pressure transducer
In this mode, the system maintains the preset pressure when the flow required bythe installation changes.
Proportional pressure mode with pressure transducer
In this mode the system changes the working pressure according to the requiredflow rate.
Constant flow mode with flow meter
In this mode the system maintains a constant flow rate value in a point of the instal-lation according to the required pressure.
Fixed speed mode with setting of the speed preferential rotation.
In this mode, by changing the working frequency, you may choose any operationalcurve included within the working range.
Constant temperature modewith temperature transducer
In this mode the system keeps the temperature constant inside a system by chan-ging the speed of the pump.
Operating modes
H
Q
H
Q
H
Q
H
max
min
+-
+-
+ -
+-
Performance n ≈ 2900 rpm
In-line PumpsNR
P1 Max. power input. P2 Rated motor power output. Tolerances according to UNI EN ISO 9906:2012
NR EI 50D/A-C/BNR EI 32/160A/A-B/ANR EI 32/200BNR EI 32/200A/A-S/ANR EI 40/125A/A-B/A-CNR EI 40/160B/ANR EI 40/160A/ANR EI 40/200A/A-BNR EI 50/125C/A-F/ANR EI 50/125A/BNR EI 50/160C/BNR EI 50/160A/B-B/ANR EI 50/200D/BNR EI 50/200A/A-B/ANR EI 50/250C/BNR EI 50/250B/BNR EI 50/250A/BNR EI 65/125F/BNR EI 65/125S/B-A/B-D/ANR EI 65/160A/A-B/ANR EI 65/200B/BNR EI 65/200A/BNR EI 65/200S/BNR EI 65/250C/BNR EI 65/250B/BNR EI 65/250A/C
NR4 EI 50A/A-B/A-C/ANR4 EI 65A/A-B/A-C/ANR4 EI 100B/B-C/BNR4 EI 100A/BNR4 EI 125A/A-B/A-C/BNR4 EI 32/160A-BNR4 EI 32/200B-CNR4 EI 32/200A/ANR4 EI 40/160A-BNR4 EI 40/200BNR4 EI 40/200A/ANR4 EI 50/160B-CNR4 EI 50/160A/BNR4 EI 50/200A/B-B/BNR4 EI 50/250C/BNR4 EI 50/250A/A-B/BNR4 EI 65/125D-FNR4 EI 65/125S/B-A/BNR4 EI 65/160A/B-B/BNR4 EI 65/200C/BNR4 EI 65/200B/BNR4 EI 65/200A/BNR4 EI 65/250C/B-D/BNR4 EI 65/250A/A-B/A
New Compact DesignA compact structure allows for simpleinstallation even in confined spaces
A Unique DesignAn innovative guard (patented) pre-vents contact with rotating parts,providing protection to the end userwhilst allowing for inspection of themechanical seal.
Silent operationSpecially designed fluid ducts providevery quiet operation
Exceptional Fluid DynamicsThe fluid dynamics through the impeller andcasing are designed to minimize losses andincrease performance.