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Column Pumps P 7121

Overview Specifications Performance Curves Industries & Applications Documentation & Tools
Overview

Overview

Product Features
  • N-technology hydraulic
  • Sustained high efficiency
  • Aluminium bronze​ propeller
  • Robust and reliable

PROPELLER PUMP WITH N-TECHNOLOGY

The P 7121 offers maximum reliability, thanks to our well proven and unique N-technology consisting of backswept leading edges on the propeller blades and a relief groove in the wear ring area. The patented N-technology assures a self-cleaning pump resulting in no unplanned stops and reduced energy bills due to its sustained high efficiency.

The pump is easy to install, without assembly or shaft-alignment problems. The Flygt submersible P 7121 can be installed in its 1400 mm column within minutes. And you can easily hoist it for servicing, thanks to our smart installation concept. 

ROBUST AND RELIABLE DESIGN

  • Motor designed for submersible use. Heat is concentrated to the stator core for improved cooling properties.
  • Aluminum-bronze propeller for normal use in most applications.
  • Optional stainless steel propeller for applications that require stainless steel.
  • Self-cleaning guide vanes optimized for use in contaminated water.
  • Martensitic stainless steel shaft gives maximum strength and corrosive resistance.
  • Double mechanical seal system. 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.

Column (L)

Column (L)

​​Column pipe, semi permanent, submersible pump installation. Wet pit arrangement with the pump installed inside the discharge pipe, automatically seated on a flange.​

Specifications

Specifications

Metric
US
 
 
Pump
P 7121 3 phase 14 poles 50hz US
P 7121 3 phase 12 poles 50hz US
P 7121 3 phase 10p 50hz US
P 7121 3 phase 14 poles 50hz Metric
P 7121 3 phase 12 poles 50hz Metric
P 7121 3 phase 10p 50hz Metric
P 7121 3 phase 14 poles 60hz US
P 7121 3 phase 12 poles 60hz US
P 7121 3 phase 14 poles 60hz Metric
P 7121 3 phase 12 poles 60hz Metric
f) Frequency
50 hz
50 hz
50 hz
50 hz
50 hz
50 hz
60 hz
60 hz
60 hz
60 hz
g) Number of poles
1
1
1
1
1
1
1
1
1
1
h) Phase
3
3
3
3
3
3
3
3
3
3
d) Discharge outlet diameter
0 inch
0 inch
0 inch
0 mm
0 mm
0 mm
0 inch
0 inch
0 mm
0 mm
i) Rated power
268.2 hp - 335.3 hp
388.9 hp - 549.8 hp
771.1 hp
200 kW - 250 kW
290 kW - 410 kW
575 kW
460 hp - 600 hp
775 hp
343 kW - 447.4 kW
577.9 kW
j) Rated currents @400V
430 A - 525 A
605 A - 840 A
1090 A
430 A - 525 A
605 A - 840 A
1090 A
a) Impeller material
Stainless steel
Stainless steel
Stainless steel
Stainless steel
Stainless steel
Stainless steel
Stainless steel
Stainless steel
Stainless steel
Stainless steel
b) Impeller material option 1
Aluminium bronze
Aluminium bronze
Aluminium bronze
Aluminium bronze
Aluminium bronze
Aluminium bronze
Aluminium bronze
Aluminium bronze
Aluminium bronze
Aluminium bronze
e) Motor efficiency class
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Performance Curves

Performance Curves

Metric
US
P 7121 3 phase 14 poles 50hz US
P 7121 3 phase 12 poles 50hz US
P 7121 3 phase 10p 50hz US
P 7121 3 phase 14 poles 50hz Metric
P 7121 3 phase 12 poles 50hz Metric
P 7121 3 phase 10p 50hz Metric
P 7121 3 phase 14 poles 60hz US
P 7121 3 phase 12 poles 60hz US
P 7121 3 phase 14 poles 60hz Metric
P 7121 3 phase 12 poles 60hz Metric
Industries & Applications

Industries & Applications

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Documentation & Tools

Interactive Tools

Technical Product Information

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