Pumps - FRANKLIN ELECTRIC
COVERCO 4’’ submersible motors
General features
The 4’’ submersible motors of the NBS4 series are the latest addition to the Coverco family.
These are rewindable motors and can operate in wells with water not over 35 °C and a pH ranging between 6.5 e 8.0.
The filling liquid is a dielectric fluid, known as white oil, approved by the FDA and other international pharmacological institutes.
The coupling dimensions and flange comply with the NEMA standard, as these submersible motors are specifically designed to operate coupled with submersible deep well pumps with the same coupling dimensions.
The motors can be equipped with single-phase and three-phase power supply.
The singlephase line ranges between 0.37 kW (0.5 HP) and 4.0 kW (5.5 HP), whereas the three-phase line ranges between 0.37 kW (0.5 HP) and 7.5 kW (10 HP).
The submersible motors are mainly used in vertical installations; however, these motors can be installed also horizontally prior confirmation from our technical department and global assessment of the required application.
Coverco motors can be installed in 4’’ wells with a maximum depth of 250 metres.
The rewindable feature is ensured by a design that allows the motors to be disassembled and reassembled.
Advantages
• stator in oil
• cable material compliant with drinking water standards (with relative inspection)
• sand protection and mechanical seal to allow for optimal operation even in the presence of sand in the well
• excellent efficiency and low operating costs
• all motors are pre-filled with liquid and 100% tested
Standard motors • 0.37 - 7.5 kW • 4’’ NEMA flange • Protection rating: IP68 • Number of starts per hour: max. 30 • Vertical and horizontal operation (prior authorisation). • Rated voltage: 210-220-230/50 Hz; 380-415V/50Hz; 460V/60Hz • Voltage tolerance: ± 10% • Motor protection: thermal relays in compliance with EN 60947-4-1, trip class 10 or 10A, trip time < 10 s. at 5 x IN • Insulation class: F • Ambience temperature: 30 °C • Cable dimensions: 4x1.5 mm2 • Cooling flow rate: min. 8 cm/sec. • Water pH: 6.5-8 • Thrust load: 1500 N, 2500 N, 4500 N(K), 6500 N(K)Applications Coverco 4’’ electric motors ensure reliable operation in wells with diameters equal to or greater than 4’’. The axial and radial oil lubricated bearings allow for maintenance-free operation. The pressure compensation inside the motor is ensured by a special membrane. Products:
AREM
code |
Type |
Pn |
Un |
Down Thrust |
Capacitor |
| [kW] |
[V] |
max |
μF |
| 1604001 |
NBS4 050M |
0,37 |
220/230
1-phase |
1500N |
20 |
| 1604002 |
NBS4 075M |
0,55 |
1500N |
25 |
| 1604003 |
NBS4 100M |
0,75 |
1500N |
36 |
| 1604004 |
NBS4 150M |
1,10 |
1500N |
40 |
| 1604005 |
NBS4 200M |
1,50 |
2500N |
50 |
| 1604006 |
NBS4 300M |
2,20 |
2500N |
76 |
| 1604029 |
NBS4K 300M |
2,20 |
4500N |
76 |
| 1604030 |
NBS4K 400M |
3,00 |
4500N |
100+178 |
| 1604031 |
NBS4K 500M |
3,70 |
4500N |
100+178 |
| 1604032 |
NBS4K 550M |
4,00 |
4500N |
100+178 |
| 1604024 |
NBS4 050T |
0,37 |
380/415
3-phase |
1500N |
- |
| 1604015 |
NBS4 075T |
0,55 |
1500N |
- |
| 1604016 |
NBS4 100T |
0,75 |
1500N |
- |
| 1604017 |
NBS4 150T |
1,10 |
2500N |
- |
| 1604018 |
NBS4 200T |
1,50 |
2500N |
- |
| 1604019 |
NBS4 300T |
2,20 |
2500N |
- |
| 1604025 |
NBS4K 300T |
2,2 |
4500N |
- |
| 1604020 |
NBS4 400T |
3,00 |
2500N |
- |
| 1604026 |
NBS4K 400T |
3 |
4500N |
- |
| 1604021 |
NBS4 550T |
4,00 |
2500N |
- |
| 1604027 |
NBS4K 550T |
4 |
4500N |
- |
| 1604022 |
NBS4 750T |
5,50 |
2500N |
- |
| 1604028 |
NBS4K 750T |
5,5 |
4500N |
- |
| 1604023 |
NBS4K 1000T |
7,5 |
4500N |
- |
| 1604007 |
NBS4 075T220 |
0,55 |
220/230
3-phase |
1500N |
- |
| 1604008 |
NBS4 100T220 |
0,75 |
1500N |
- |
| 1604009 |
NBS4 150T220 |
1,10 |
2500N |
- |
| 1604010 |
NBS4 200T220 |
1,50 |
2500N |
- |
| 1604011 |
NBS4 300T220 |
2,20 |
2500N |
- |
| 1604012 |
NBS4 400T220 |
3,00 |
2500N |
- |
| 1604013 |
NBS4 550T220 |
4,00 |
2500N |
- |
| 1604014 |
NBS4 750T220 |
5,50 |
2500N |
- |
For further informations please send an email to info@arem-distributors.it and you will be contacted by our offices.
