KSB Amarex N - F 50-170/012 ULG 120

Quick Overview

  • Product Code: 39100049
  • Amarex N: Type series
  • F: Free flow impeller
  • 50-170: Size of hydraulic system
  • 012: Motor size
  • UL: Without explosion protection, for fluid temperatures of up to 55°C
  • G: Pump casing - grey cast iron JL1040, Intermediate casing - grey cast iron JL1040, Impeller - grey cast iron JL1040
  • 120: Nominal impeller diameter
Check the datasheets in the downloads tab below for comprehensive information before you order
Please ensure you are ordering the correct pump/phase as restocking charges may apply. Please call us on 01322 292 415 to check current delivery times.


The Amarex N - F 50-170/012 ULG 120 from KSB is a submersible pump without explosion protection for the drainage of dirty/sewage water. For fluid temperatures of up to 55°C

Product benefits

  • Robust and safe
  • High efficiencies
  • Easy to maintain 

Main applications

  • Waste water management
  • Drainage systems
  • Sewage treatment plants
  • Drainage of rooms and areas at risk of flooding on municipal, commercial and industrial premises

Fluids handled

  • For fluid temperatures of up to 55 °C
  • Activated sludge
  • Digested sludge
  • Heating sludge
  • Mixed water
  • Raw waste water
  • Raw sludge
  • Recirculated sludge


  • Casing: JL 1040
  • Intermediate casing: JL 1040
  • Impeller: JL 104050)
  • Shaft: 1.4021
  • Mechanical seal (motor end): Carbon/Al2O3
  • Mechanical seal (pump end): SiC/SiC
  • Screws/bolts: A2
  • Sealing elements: NBR

Other Features

  • Drive
    ▪ Three-phase asynchronous squirrel-cage motor
    ▪ Motors integrated in explosion-proof pump sets are supplied in Ex d IIB type of protection.
  • Shaft seal
    ▪ Two bi-directional mechanical seals in tandem arrangement, with liquid reservoir
  • Standard bearings
    ▪ Grease-lubricated bearings sealed for life
    ▪ Maintenance-free

Product Attachments

View FileAmarex Datasheet    Size: (3.42 MB)