Flygt N-Technology Pumps

N 3312

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 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 system, 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 3312 3 phase 8p 870 50hz US
50 hz
8
3~
11 13/16 inch
73.8 hp - 167.6 hp
109 A - 256 A
Grey cast iron
Stainless steel
Standard
N 3312 3 phase 6p 670 50hz US
50 hz
6
3~
11 13/16 inch
121 hp - 335.3 hp
171 A - 475 A
Grey cast iron
Stainless steel
Standard, Premium efficiency (IE3)
N 3312 3 phase 8p 870 50hz Metric
50 hz
8
3~
300 mm
55 kW - 125 kW
109 A - 256 A
Grey cast iron
Stainless steel
Standard
N 3312 3 phase 6p 670 50hz Metric
50 hz
6
3~
300 mm
90 kW - 250 kW
171 A - 475 A
Grey cast iron
Stainless steel
Standard, Premium efficiency (IE3)
N 3312 3 phase 8p 870 60hz US
60 hz
8
3~
11 13/16 inch
90 hp - 230 hp
Grey cast iron
Stainless steel
Standard
N 3312 3 phase 6p 670 60hz US
60 hz
6
3~
11 13/16 inch
215 hp - 470 hp
310 A - 665 A
Grey cast iron
Stainless steel
Standard, Premium efficiency (IE3)
N 3312 3 phase 8p 870 60hz Metric
60 hz
8
3~
300 mm
67.1 kW - 171.5 kW
Grey cast iron
Stainless steel
Standard
N 3312 3 phase 6p 670 60hz Metric
60 hz
6
3~
300 mm
160.3 kW - 350.5 kW
310 A - 665 A
Grey cast iron
Stainless steel
Standard, Premium efficiency (IE3)
Performance Curves

Performance Curves

50 hz
60 hz
Metric
US
N 3312 3 phase 8p 870 50hz US
N 3312
N 3312 3 phase 6p 670 50hz US
N 3312
N 3312 3 phase 8p 870 50hz Metric
N 3312
N 3312 3 phase 6p 670 50hz Metric
N 3312
N 3312 3 phase 8p 870 60hz US
N 3312
N 3312 3 phase 6p 670 60hz US
N 3312
N 3312 3 phase 8p 870 60hz Metric
N 3312
N 3312 3 phase 6p 670 60hz Metric
N 3312
Accessories

Accessories

Accessories

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

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

 

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
Ports, Harbors & Shipping Dry Dock Drainage
Dry Dock Drainage
Commercial Ship Building 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
Sludge Pumping
Wastewater > Sludge Handling Sludge Pumping
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

Brochure
Flygt N-Pump 60 Hz series brochure

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