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Wilo-EMU FA (standard variant)


Submersible sewage pump


  • Pumping of sewage with solid constituents in water treatment systems and pumping stations
  • Local drainage, water control and process water extraction
  • Applications in construction and industry

Type key

E.g.:Wilo-EMU FA 08.22W-133+T12-2/11
FASubmersible sewage pump
08Nominal diameter of DN 80 pressure connection
22Performance indicator
WImpeller shape(W = vortex impeller, E = single-channel impeller)
133Impeller diameter [mm]
TMotor version
2Number of poles
11Package length [cm]

Special features/product advantages

  • Heavy-duty version made of cast iron
  • Operationally reliable thanks to vortex hydraulics and single-channel hydraulic systems with large, free ball passage
  • Oil separation chamber with optional external monitoring
  • Longitudinally watertight cable inlet

Technical data

  • Mains connection: 3~400 V, 50 Hz
  • Immersed operating mode: S1
  • Surfaced operating mode: S1, S2-15 or S2-30 (depending on type)
  • Thermal motor monitoring
  • Protection class: IP 68
  • Insulation class: F
  • Fluid temperature: 3 ‐ 40 °C
  • Cable length: 10 m
  • Free ball passage from 45 mm to 100 mm
  • Permanently lubricated roller bearings
  • Max. immersion depth: 20 m


  • Heavy-duty version made of grey cast iron
  • Non-immersed operation possible in short-time duty S2 (depending on type)
  • Easy installation due to suspension unit or pump support foot


Submersible sewage pump as submersible monobloc unit for stationary and portable wet well installation.


The outlet on the pressure side is designed as horizontal flange connection. The maximum possible dry matter content is 8%, depending on the hydraulics and impeller type.

The following impeller shapes are used:

  • Vortex impeller (W)
  • Single-channel impeller (E)

Each single-channel hydraulic system (E) is equipped with an impeller wear ring and casing wear ring made of hardened material. These ensure the consistently high efficiency of the unit for a long duration.


Dry motors (T motors) give off their heat directly to the surrounding fluid via the housing components and can be used in immersed state for continuous duty. Depending on the size, they can also be used in non-immersed state for short-time duty.

All motors have a sealing chamber that protects the motor from fluid ingress. It can be accessed from the outside and can be monitored with an optionally sealing chamber electrode. All filling fluids used are potentially biodegradable and environmentally safe.

The cable lead-in of the dry motors is longitudinally watertight. The cable length is 10 m.


Fluid-side and motor-side sealing is possible in the following versions depending on the motor type:

  • Version H: Mechanical seal for the fluid side, rotary shaft seal for the motor side
  • Version G: Two independently-acting mechanical seals


  • Pump housing: EN-GJL-250
  • Impeller: EN‐GJL or EN‐GJS
  • Static seals: NBR
  • Mechanical seal on pump side: SiC/SiC
  • Mechanical seal on motor side: SiC/SiC (depending on type)
  • Rotary shaft seal on motor side: NBR (depending on type)
  • Motor housing: EN-GJL-250
  • Shaft: Stainless steel 1.4021

Scope of delivery

  • Pump ready for connection with 10 m connecting cable without plug
  • Installation and operating instructions


  • Suspension unit or pump base
  • Various pressure outlets and Storz couplings
  • Chains
  • Switchgears, relays and plugs

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