Flygt N-Technology Pumps

N 3531

Overview Specifications Performance Curves Accessories Industries & Applications Documentation & Tools
Overview

Overview

Product Features
  • State-of-the-art wastewater pump with N-technology
  • Sustained high efficiency with energy savings up to 25%
  • Flexible and modular design
  • Robust and reliable

WASTEWATER N-TECHNOLOGY PUMP

Flygt N-pumps take on the toughest applications and get the job done. Every component is designed and manufactured to deliver sustained high efficiency. Thanks to patented N-technology with its innovative self-cleaning impeller, Flygt N-pumps deliver the highest total efficiency. They lower your energy bill and reduce unplanned maintenance costs. That adds up to total peace of mind – and big savings over the long term.

Most solid objects entering the pump will pass through the impeller between the impeller vanes. If an object gets caught on the leading edge of one of the vanes, it will slide along the backswept shape towards the perimeter of the inlet.

Due to the mechanical self-cleaning design, a sludge concentration up to 8% can easily be pumped.

FLEXIBLE AND MODULAR DESIGN

This self-cleaning pump features innovative functions that make it the best choice for a broad range of applications. The modular hydraulic design enables you to tailor the hydraulics to meet the requirements of virtually any application.

  • Replaceable wear ring in two materials, gray iron or Hard IronTM for different operation conditions
  • Hardened gray iron impeller for typical wastewater applications
  • Hard Iron™ impeller for abrasive and corrosive applications
  • Stainless steel impeller for special applications that require duplex stainless steel
  • Short shaft overhang reduces shaft deflection and increases seal and bearing life
  • Motor designed for submersible use. Heat is concentrated to the stator core for improved cooling properties.
  • The double mechanical seal system consists of two sets of mechanical shaft seals that work independently to provide double security. Available in Tungsten carbide (WCCR) or Silicone carbide (SiC) depending on pumped media.
  • Motor cable SUBCAB ® specially developed for submersible use
  • Offers flexible cooling systems, e.g. closed loop cooling  system, media cooled or external cooling.

Wet Pit (P)

Wet Pit (P)

​Semi permanent, submersible pump installation. Wet pit arrangement with the pump installed on twin guide bars with automatic connection to the discharge pipe.​

Portable (S)

Portable (S)

​​Portable, submersible pump installation. Portable pump with hose coupling or flange for connection to the discharge pipe.​

Dry Installation vertical (T)

Dry Installation vertical (T)

​​Vertical, permanent, dry pump installation. The submersible pump is installed in a dry pit, with flange connection to suction and discharge piping.​

Dry Installation (Z)

Dry Installation (Z)

​​Horizontal, permanent, dry pump installation. The submersible pump is installed in a dry pit, with flange connection to suction and discharge piping. ​

Specifications

Specifications

50 hz
60 hz
Metric
US
 
 
Pump
f) Frequency
g) Number of poles
h) Phase
d) Discharge outlet diameter
i) Rated power
j) Rated currents @400V
a) Impeller material
b) Impeller material option 1
e) Motor efficiency class
N 3531 3 phase 14 poles 1470 50hz US
50 hz
14
3~
19 11/16 inch
53.6 hp - 93.9 hp
113 A - 200 A
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 12 poles 1270 50hz US
50 hz
12
3~
19 11/16 inch
53.6 hp - 187.7 hp
99 A - 360 A
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 10p 1070 50hz US
50 hz
10
3~
19 11/16 inch
80.5 hp - 288.3 hp
138 A - 460 A
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 8p 870 50hz US
50 hz
8
3~
19 11/16 inch
167.6 hp - 536.4 hp
245 A - 730 A
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 6p 670 50hz US
50 hz
6
3~
19 11/16 inch
415.7 hp - 911.9 hp
575 A - 1160 A
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 14 poles 1470 50hz Metric
50 hz
14
3~
500 mm
40 kW - 70 kW
113 A - 200 A
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 12 poles 1270 50hz Metric
50 hz
12
3~
500 mm
40 kW - 140 kW
99 A - 360 A
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 10p 1070 50hz Metric
50 hz
10
3~
500 mm
60 kW - 215 kW
138 A - 460 A
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 8p 870 50hz Metric
50 hz
8
3~
500 mm
125 kW - 400 kW
245 A - 730 A
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 6p 670 50hz Metric
50 hz
6
3~
500 mm
310 kW - 680 kW
575 A - 1160 A
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 14 poles 1470 60hz US
60 hz
14
3~
19 11/16 inch
60 hp - 170 hp
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 12 poles 1270 60hz US
60 hz
12
3~
19 11/16 inch
90 hp - 280 hp
Grey cast iron
Standard
N 3531 3 phase 10p 1070 60hz US
60 hz
10
3~
19 11/16 inch
135 hp - 500 hp
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 8p 870 60hz US
60 hz
8
3~
19 11/16 inch
335 hp - 870 hp
515 A - 1205 A
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 14 poles 1470 60hz Metric
60 hz
14
3~
500 mm
44.7 kW - 126.8 kW
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 12 poles 1270 60hz Metric
60 hz
12
3~
500 mm
67.1 kW - 208.8 kW
Grey cast iron
Standard
N 3531 3 phase 10p 1070 60hz Metric
60 hz
10
3~
500 mm
100.7 kW - 372.8 kW
Grey cast iron
Stainless steel
Standard
N 3531 3 phase 8p 870 60hz Metric
60 hz
8
3~
500 mm
249.8 kW - 648.8 kW
515 A - 1205 A
Grey cast iron
Stainless steel
Standard
Performance Curves

Performance Curves

50 hz
60 hz
Metric
US
N 3531 3 phase 14 poles 1470 50hz US
N 3531
N 3531 3 phase 12 poles 1270 50hz US
N 3531
N 3531 3 phase 10p 1070 50hz US
N 3531
N 3531 3 phase 8p 870 50hz US
N 3531
N 3531 3 phase 6p 670 50hz US
N 3531
N 3531 3 phase 14 poles 1470 50hz Metric
N 3531
N 3531 3 phase 12 poles 1270 50hz Metric
N 3531
N 3531 3 phase 10p 1070 50hz Metric
N 3531
N 3531 3 phase 8p 870 50hz Metric
N 3531
N 3531 3 phase 6p 670 50hz Metric
N 3531
N 3531 3 phase 14 poles 1470 60hz US
N 3531
N 3531 3 phase 12 poles 1270 60hz US
N 3531
N 3531 3 phase 10p 1070 60hz US
N 3531
N 3531 3 phase 8p 870 60hz US
N 3531
N 3531 3 phase 14 poles 1470 60hz Metric
N 3531
N 3531 3 phase 12 poles 1270 60hz Metric
N 3531
N 3531 3 phase 10p 1070 60hz Metric
N 3531
N 3531 3 phase 8p 870 60hz Metric
N 3531
Accessories

Accessories

Accessories

Flygt lifting systems, wet

  • The Flygt lifting systems simplify hoisting submersible pumps
  • Quick pump installation in one continuous hoisting action
  • The pump is easy to locate also when submerged
  • All Flygt lifting equipment is tested and CE marked

 

Service cart and rails, Horizontal dry pump installation

  • Easy service access for horizontally dry-installed pumps, Flygt models 3153–3315 
  • Rails and service cart under each pump
  • The motor and impeller unit is pulled away from the pump housing
Industries & Applications

Industries & Applications

Recommended Industries and Applications

Coal
Energy & Power Coal
Nuclear
Energy & Power Nuclear
Bypass and Backup Pumping
General Industry Bypass and Backup Pumping
Dry Dock Drainage
Commercial Ship Building Dry Dock Drainage
Dry Dock Drainage
Ports, Harbors & Shipping Dry Dock Drainage
Source Water
Mining & Quarrying / Aggregates > Production Source Water
Water Transport and Boosting
Mining & Quarrying / Aggregates > Production Water Transport and Boosting
Sewage Bypass
Wastewater Sewage Bypass
Lift Stations
Wastewater Lift Stations
Potable / Drinking Water Pumping
Potable / Drinking Water Potable / Drinking Water Pumping
Raw Water Intake
Potable / Drinking Water Raw Water Intake
Stormwater Handling
Stormwater & Flooding Stormwater Handling
Flood Prevention
Stormwater & Flooding Flood Prevention
Documentation & Tools

Interactive Tools

Technical Product Information
Technical Product Information

Get additional technical information about your Xylem products here.

Documents

Related Products & Services