wilo pumps

Wilo Pumps - CronoNorm NL Series

Design Of Wilo Pumps


Single-stage low-pressure centrifugal Wilo Pumps with axial suction point, according to EN 733 and ISO 5199, mounted on a baseplate.


Application Wilo Pumps


  • For pumping heating water (in accordance with VDI 2035), water-glycol mixtures and cooling and cold water without abrasive substances in heating, cold water and cooling water systems
  • For applications regarding the municipal water supply, irrigation, building services, industry, power stations etc. (e.g. circulation, transfer and pressure-boosting tasks)


Type key of Wilo Pumps


Example NL 40/200B-11/2
NL Standard pump with axial suction
40 DN for the pressure flange
200B Nominal diameter of impeller
11 Rated motor power P2 [kW]
2 number of poles


Special features/product advantages of Wilo Pumps


  • Reduced life-cycle costs through optimised efficiency levels
  • Bidirectional, force-flushed mechanical seal
  • Low NPSH values, best cavitation properties
  • Shaft coupling with or without intermediate sleeve
  • Shaft deflection satisfies the requirements of ISO 5199


Technical data of Wilo Pumps


  • Minimum Efficiency Index (MEI) ≥ 0.4
  • Permissible temperature range of -20°C to +120°C
  • Mains connection 3~400 V, 50 Hz
  • Protection class IP 55
  • Nominal diameter DN 32 to DN 150
  • Max. operating pressure 16 bar


Scope of delivery


  • Wilo Pumps with free shaft end or
  • Wilo Pumps on baseplate with coupling and coupling protection or
  • Completely mounted pump on baseplate with electric motor
  • Installation and operating instructions


Materials of Wilo Pumps


  • Wilo Pumps housing and pressure lid: EN-GJL-250
  • Bearing bracket: EN-GJL-250
  • impeller: EN-GJL-250
    (special version: G-CuSn10)
  • Shaft: X20Cr13
  • Mechanical seal: AQ1EGG
    (other mechanical seals on request)


Description/design of Wilo Pumps


  • Wilo Pumps Single-stage low-pressure centrifugal pump as baseplate pump with axial suction piece with flanged bearing bracket and axis mounting for flexibly coupled drives.
  • Spacer coupling (sleeve coupling) available as an option; they make it possible to leave the motor in position when removing the rotor unit
  • Shaft deflection meets the requirements of ISO 5199




  • If pumps with 2900 rpm are installed inside residential buildings, then corresponding noise reducing measures are to be implemented.
  • Pump curves and specific motor powers depend on the respective fluid being pumped. Pump curves and power vary considerably when fluids are conveyed that differ from water in thickness and/or viscosity. For this, please observe the table “Recommended limit values for dimensioning”.
    The recommended limit values for dimensioning are calculated as follows:
    Qoptimum (volume flow at which the pump reaches its best efficiency), to be read from the individual pump curve; factors Qmin and Qmax , to be taken from the table “Recommended limit values for dimensioning”.Qmin dimensioning = Qmin x Qoptimum
    Qmax dimensioning = Qmax x Qoptimum
    Example: Size NL 32-125
    Qmin = 0.3 x 8 = 2.4 m3/h
    Qmax = 1.2 x 8 = 9.6 m3/h
  • Load-sensitive pump output
    All Wilo standard pumps are equipped with IEC standard motors. The Wilo control devices are suitable for automatic load-sensitive speed control of pumps that are driven by any standard motors of conventional manufacture.
  • Main/standby mode


Accessories Wilo Pumps


Automatic speed control:

for automatic, infinitely variable pump power control. for additional information, see “Switchgears and control devices” section.




Motors with efficiency class IE3, other voltages and frequencies on request


General notes – ErP (ecological design-) directive


  • The benchmark for most efficient water pumps is MEI ≥ 0.70
  • The efficiency of a pump with a trimmed impeller is usually lower than that of a pump with the full impeller diameter. The trimming of the impeller will adapt the pump to a fixed duty point, leading to reduced energy consumption. The minimum efficiency index (MEI) is based on the full impeller diameter.
  • The operation of this water pump with variable duty points may be more efficient and economic when controlled, for example, by the use of a variable speed drive that matches the pump duty to the system.
  • Information on benchmark efficiency is available at www.europump.org/efficiencycharts


Wilo-Multivert MVIL Pumps

Design Pump


Non-self-priming multistage pump


Application Pump


  • Water supply and pressure boosting
  • Commerce and industry
  • Washing and spraying systems
  • Rainwater utilisation
  • Cooling and cold water circuits


Type key Pump


Example: MVIL 107N-16/E/3-400-50-2
MVIL Multistage vertical high-pressure centrifugal pump
1 Volume flow in m3/h
07 Number of impellers
N Standardised motor
16 Maximum operating pressure in bar
E Type of gasket
3 1 = 1~ (single-phase current)
3 = 3~ (three-phase current)
400 Connection voltage in V
50 Frequency in Hz
2 Number of poles


Special features/product advantages Pump


  • Space-saving, compact block design
  • Drinking water approval for all components that come in contact with the fluid (EPDM version)


Technical data Pump


  • Minimum Efficiency Index (MEI) ≥ 0.1
  • Mains connection 1~230 V (±10 %), 50 Hz or optionally 220 V (±10 %), 60 Hz
  • Mains connection 3~230 V (±10 %), 50 Hz (Δ), optionally 220 V (±10 %), 60 Hz (Δ), 400 V (±10 %), 50 Hz (Y) or optionally 380 V (±10 %), 60 Hz (Y)
  • Fluid temperature of -15 to +90 °C
  • Operating pressure max. 10 bar or max. 16 bar, depending on type
  • Inlet pressure max. 6 bar or max. 10 bar depending on type
  • Protection class IP 54
  • Nominal diameters of pipe connections Rp 1, Rp 1¼ or Rp 1½, depending on type
  • Minimum Efficiency Index (MEI): ≥0.1


Equipment/function Pump


  • Pump in in-line design
  • Hydraulics in 1.4301, pump housing in EN‐GJL‐250
  • Oval flange
  • Single-phase or three-phase AC motor
  • Single-phase AC motor with integrated thermal motor protection


Materials Pump


  • Impellers 1.4301 stainless steel
  • Stage chambers 1.4301 stainless steel
  • Shaft stainless steel 1.4404
  • Gasket EPDM
  • Housing cover EN‐GJL‐250 (cataphoretic-coated)
  • Lower housing section EN‐GJL‐250 (cataphoretic-coated)
  • Mechanical seal SiC/carbon
  • Bearing, tungsten carbide


Scope of delivery


  • Pump
  • Oval counter flanges Rp 1 to Rp 1 1/2
  • Installation and operating instructions


General notes – ErP (ecological design-) directive


  • The benchmark for most efficient water pumps is MEI ≥ 0.70
  • The efficiency of a pump with a trimmed impeller is usually lower than that of a pump with the full impeller diameter. The trimming of the impeller will adapt the pump to a fixed duty point, leading to reduced energy consumption. The minimum efficiency index (MEI) is based on the full impeller diameter.
  • The operation of this water pump with variable duty points may be more efficient and economic when controlled, for example, by the use of a variable speed drive that matches the pump duty to the system.
  • Information on benchmark efficiency is available at www.europump.org/efficiencycharts

Drain TM/TMW/TMR 32 Series - Wilo Pumps


Basement drainage water pump, water-cooled

Application in Water

  • For pumping water clear or slightly muddy water
    • From water tanks, sumps or pits
    • For water overflows and flooding
    • For draining water basement stairways and basement areas

The TMR is suited for lowering the water level to a remaining water level of 2 mm.


The service life of submersible pumps water, which are used in water pump sumps and through which washing machine water, soapy water from basins and showers, or other mixtures water flow, is considerably reduced by settling sediment. Such sediment can form deposits in the water pump sump, resulting in the accumulation of mud and odours.

Wilo-Drain water TMW 32 has a turbulator that prevents the build-up of sediment, expelling it together with the fluid in water. This reduces costs and the time needed for regular cleaning water of the sump. In addition, problems associated with mud removal and the observance of occupational safety hygiene regulations during cleaning water of the pump sump are minimized.


Type key


Example: Wilo-Drain TM 32/7
TM Submersible pump
32 Nominal diameter of discharge port
/7 Max. delivery head [m]
Example: Wilo-Drain TMW 32/11 HD
TM Submersible pump
W W = with turbulatorR = with flat suction
32 Nominal diameter of discharge port
/11 Max. delivery head [m]
HD For aggressive fluid


Special features/product advantages for in Water

  • Minimum residual water level of 2 mm for absolute reliability
  • Ergonomic handle, low weight, user-friendly due to ready-to-plug version (Plug & Pump)
  • Operational reliability due to integrated sheath current cooling, mechanical seal with sealing chamber and stainless steel-encapsulated motor
  • Cable length 3 to 10 m, depending on type
  • Fluid temperature water: max. 90 °C


Technical data

  • Mains connection 1~230 V, 50 Hz
  • Protection class: IP 68
  • Submersion depth max. 3 m
  • Fluid temperature 3 ‐ 35 °C, max. 90 °C for short periods up to 3 min.
  • Cable length 3 to 10 m, depending on type
  • Free ball passage 10 mm (TMR: 2 mm)
  • Pressure port Rp 1 ¼


Equipment/function in the water

  • Ready-to-plug
  • Thermal motor monitoring
  • Sheath current cooling
  • Connection cable



  • Pump housing PP‐GF30
  • Impeller PPE/PS-GF20
  • Shaft 1.4104 (AISI 430F)/1.4404 (AISI 316L) (for TMW 32/11 HD)
  • Shaft seal: NBR on motor side, carbon/ceramic on pump side
  • Motor housing 1.4301(AISI 304) / 1.4404 (AISI 316L) (with TMW 32/11 HD)



Submersible pump water suitable for stationary, fully automatic operation. A pressure hose of appropriate length is connected for mobile use, while a pipe is connected to the pressure port for stationary applications. A residual current device for a trigger current of 30 mA that is to be provided onsite (regulation concerning outdoor installation) must be utilised in accordance with EN 60335-2,41.

The pumps of the TM series are suitable for drainage applications with a multi-channel impeller and a free ball passage of 10 mm according to EN 12050-2 (except TMR).

The water pump is continuously cooled by the fluid between the outside shroud of the water pump and the stainless steel motor housing. The serially installed thermal motor protection assures a permanent protection of the pump. The pump is equipped with a 3 or 10 m connecting cable with shockproof plug and a float switch (not TM 32/8-10M).


The Wilo-Drain TMR water pumps are built for special applications whereby it is essential to keep the amount of residual water low. The special strainer enables the fluid to be pumped out to a remaining level of 2 mm.


Due to its design, the Wilo-Drain TMW ensures constant turbulence in the suction area of the pump. This results in a clean pump sump.

No fluid-related odours are generated, due to the turbulence and the elimination of the settling sediment connected with it. The maintenance intervals are extended.

Deactivating the Twister (see installation and operating instructions) increases the pump curve by 1 m.


Jacket-cooled, stainless steel-encapsulated, dry electric motor with built-in thermal overload protection and automatic reactivation.


In accordance with DIN EN 60335-2-41, 10 m of electrical connection line should be used for outdoor operation (however note that regulations vary from country to country).

Sealing of water pumps/motor compartment

Mechanical seal on impeller side, one rotary shaft seal on motor side; there is an oil chamber between the seals.


Scope of delivery

Pump ready for connection with cable, plug and attached float switch (except for TM 32/8), supplied non-return valve (except for TM 32/7), installation and operating instructions.

Wilo Pumps- EMU KPR Series By Wilo Pumps



Axial submersible pump with dry motor for use in pipe sumps




  • For pumping cooling water or rainwater
  • Pumping of purified sewage
  • For irrigation and pumping sludge.


Type key


Example: Wilo pump-EMU KPR 760-16° + T 49-10/53P Ex
Hydraulics: KPR 760-16°
KPR Axial pump
760 Propeller diameter
16° Angular position of the propeller blades
Motor: T 49-10/53P Ex
T Motor version
49 Size
10 Number of poles pump
53 x10 = package length [mm]
P Motor for axial pump
Ex Ex-rated


Special features/product advantages


  • Installation pump directly in the discharge pipe
  • Angle of propeller blades adjustable
  • Pump Process reliability thanks to comprehensive monitoring devices
  • Minimal vibrations and long service life due to high-quality components pump
  • Customer-specific versions possible


Technical data


  • Mains connection: 3~400 V, 50 Hz
  • Immersed operating mode: S1
  • pump Protection class: IP 68
  • Max. fluid temperature: 3 ‐ 40°C, higher temperatures on request
  • Sealing: With two mechanical seals or one block seal cartridge, depending on the motor
  • Free ball passage: 85 – 130 mm.
  • Short common pump/motor shaft
  • Permanently lubricated roller bearings
  • Max. immersion depth: 20 m




  • Heavy-duty version in cast iron




Axial submersible pump as submersible monobloc unit for stationary wet installation


The angle of the propeller/impeller blades can be adjusted by hand. This makes it possible to adapt the unit to use in different conditions.


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 permanent operation.

A sealing chamber protects the motor from fluid ingress. It can be accessed from the outside and can be monitored with an optional sealing chamber electrode.

All filling fluids used are potentially biodegradable and environmentally safe.

The cable inlet of the T motors is longitudinally watertight. Cable lengths can be individually configured.


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

  • Version G: Two independently operating mechanical seals
  • Version K: Block seal cartridge with two independently operating mechanical seals




  • Pump Housing components: EN-GJL
  • Propeller: Stainless steel
  • Sealing on pump side: SiC/SiC
  • Sealing on motor side: SiC/SiC
  • Pump Static seals: NBR
  • Pump Shaft: Stainless steel 1.4021


Scope of delivery


  • Axial submersible pump
  • Cable length per customer request
  • Accessories per customer request
  • Operating and maintenance manual




  • Pump Switchgears, relays and plugs

Wilo Pumps - MultiPress HMP



Non-self-priming water – supply unit




  • Water supply
  • Sprinkling
  • water Irrigation and water spraying


Type key


Example: HMP-305-EM
H System consisting of a pump with diaphragm pressure vessel
MP MultiPress (multistage, non-self-priming, horizontal centrifugal pump)
3 Nominal flow rate Q in m³/h
05 Number of impellers
EM Single-phase current, 1~230 V, 50 Hz
DM Three-phase current, 3~230/400 V, 50 Hz


Special features/product advantages


  • Ideal system for supplying water throughout the building
  • Low-noise due to multistage design
  • All parts in contact with the fluid are corrosion-free
  • Reduction of switch-on frequency and avoidance of pressure surges due to large-sized 50 l diaphragm pressure vessel


Technical data


  • Mains connection 1~230 V, 50 Hz / 3~400 V, 50 Hz
  • Max. inlet pressure 6 bar
  • Fluid temperature +5 °C to +35 °C
  • Max. operating water pressure 10 bar
  • Pressure switch setting range 1-5 bar
  • Protection class IP 54
  • Suction- and pressure-side connection Rp 1




  • Directly flanged motor
  • Pressure switch
  • Diaphragm pressure vessel
  • for use with single-phase motor
    • Connection cable with plug
    • Thermal motor protection switch




  • water Pump housing made of 1.4301 stainless steel
  • Impeller made of Noryl
  • Shaft made of 1.4057 / 1.4404 stainless steel (1.1 kW)
  • Mechanical seal made of carbon/ceramic
  • Stage chambers made of Noryl
  • Seal made of NBR


Scope of delivery


  • Pump for water
  • Pressure switch
  • Pressure gauge
  • Diaphragm pressure vessel (50 l)
  • Pressure hose with steel casing and screwed connection
  • Installation and operating instructions




  • Protection against low water level:
    • Float switch WAEK 65 with small switchgear (only for EM version),
    • Float switch WA 65,
    • SK 277 with three submersible electrodes,
  • Pressure switch WVA,
  • WILO Fluidcontrol (EK),
  • System switching:
    • Float switch WAO 65,
    • Float switch WAO EK 65 with small switchgear (only for EM version).

Wilo Pumps - Comfort-N-Vario COR-1 MVISE...-GE

wilo-comfort-N-vario COR-1 MVISE-206-806-GEDesign Pumps

Water-supply pumps units with a non-self-priming glandless high-pressure multistage centrifugal pumps and integrated speed control


Application Pumps

  • For fully automatic water supply pumps in inlet mode, either from the public water supply pumps network or from a tank.
  • Pumping of drinking water, process water, cooling water, water for fire-fighting or other water mixtures that do not chemically or mechanically attack the materials used and do not contain abrasive or long-fibre constituents





Type key Pumps

Example: Wilo-COR-1 MVISE 206/GE
CO Compact pressure boosting system
R Control by frequency converter
1 With one pump
MVISE Pumps series
2 pumps Rated volume flow of the single pump [m3/h]
06 Number of single-pump stages
GE Basic unit; i.e. without additional control device


Special features/product advantages Pumps


  • Virtually noiseless system due to glandless stainless steel high-pressure multistage centrifugal pumps with integrated frequency converter
  • Up to 20 dB[A] quieter than conventional systems with comparable hydraulic output
  • Easily adjustable and operationally reliable due to the MVISE pumps series used with integrated dry-running detection and automatic cut-out in event of low water


Technical data Pumps


  • Mains connection 3~400 V, 50 Hz
  • Fluid temperature max. 50 °C
  • Operating pressure 16 bar
  • Inlet pressure 6 bar
  • Nominal connection diameters Rp 1¼ ‐ Rp 1½
  • Protection class IP 44


Equipment/function Pumps


  • 1 MVISE series pumps with glandless pump motor and infinitely variable control mode via integrated frequency converter
  • All components in contact with fluid are corrosion resistant
  • Base frame made of galvanised 1.4301 stainless steel, with height-adjustable vibration absorbers for insulation against structure-borne noise
  • Check valve, on the pressure side
  • Non-return valve, pressure side
  • Diaphragm pressure vessel 8 l, PN16


Description/design Pumps


  • Base frame: Stainless steel with height-adjustable vibration absorbers for comprehensive insulation against structure-borne noise
  • Pipework: complete pressure-side pipework made of stainless steel, suitable for the connection of all piping materials used in building services; the pipework is dimensioned according to the overall hydraulic performance of the pressure boosting system
  • Pumps: 1 pumps from the MVISE 2.., 4.., 8.. series is used; the adapted frequency converter on the pump motor enables continuous auto control for all pumps of these series; all pump components in contact with fluid are made of stainless steel
  • Valves: the pumps is fitted on the pressure side with a check valve with DVGW approval mark and a DVGW-approved non-return valve
  • Diaphragm pressure vessel: 8 l/PN 16 located on the discharge side with a butyl rubber diaphragm, completely safe in accordance with food safety laws; for testing and inspection purposes, with shut-off ball cock, with drain and throughflow fitting according to DIN 4807


Materials Pumps


  • Foot 1.4301 stainless steel
  • Impellers 1.4301 stainless steel
  • Stage chambers 1.4301 stainless steel
  • Pressure shroud 1.4301 stainless steel
  • Shaft 1.4122 stainless steel
  • Bearing/mechanical seal made of carbon, resin-impregnated
  • Pipework made of 1.4571 stainless steel


Scope of delivery pumps


  • Factory-mounted, connection-ready pressure boosting system checked for functionality and impermeability
  • Packaging pumps
  • Installation and operating instructions pumps


Planning guide pumps


Pressure reducer pumps

Fluctuating inlet pressure is compensated by the speed control integrated into each single pumps as long as the pressure fluctuation is not greater than the difference between the setpoint pressure value and the zero-delivery head of the single pumps at minimum speed. If the pressure pumps fluctuation is greater, a pressure reducing valve must be installed upstream of the system.

Residual-current-operated protection switch

When installing residual-current-operated protection switches in conjunction with frequency converters, bear in mind that only universal-current-sensitive residual-current-operated protection switches in accordance with DIN/VDE 0664 are to be fitted.

Inlet pumps pressure

The maximum inlet pressure (see Technical data) must be taken into account when configuring the system. The maximum inlet pressure is calculated from the maximum system operating pressure minus the maximum pumps delivery head at Q = 0.

Only for fire protection systems

Version in accordance with DIN 1988 (EN 806), part 5+6

Always observe the specifications in DIN 1988 (EN 806) when using and operating the pressure boosting system.

Low-water cut-out switchgear (WMS)

The installed Helix VE pump type already has integrated dry-running detection as safety equipment for the pumps.

Electronics/EMC details

  • Single-pumps system up to and including 7.5 kW motor power:
    • Emitted interference in accordance with the specifications in EN 61000-6-3
    • Interference resistance in accordance with the specifications in EN 6100-6-1

Note: Systems to be used in residential buildings must be installed by personnel who have completed EMC training.

Wilo Pumps - Drain LP Series wilo

Design Pumps

Self-priming drainage pumps

Application Pumps

Pumping of wastewater for

  • Ponds
  • Sprinkling / spraying of gardens and green areas
  • Mobile drainage

Type key

Example: Wilo-Drain LP 40/10
LP Self-priming pumps
40 Nominal diameter (DN 40)
10 Maximum delivery head in m

Special features/product advantages

  • High operational safety
  • Simple handling
  • Easy operation

Technical data Pumps

  • Mains connection: 1~230 V, 50 Hz
  • Protection class: 44
  • Fluid temperature: 3 ‐ 35 °C
  • Free ball passage: 5 mm
  • Connection: Rp 1½
  • Max. suction head: 6 m

Equipment/function Pumps

  • Thermal motor monitoring
  • Oval counter flange
  • Vortex impeller

Materials Pumps

  • Motor housing: Al
  • Pump housing: PP
  • Impeller: Brass
  • Shaft: 1.4006
  • Sealing: C/Cr mechanical seal
  • Static seals: NBR

Description/design Pumps

Self-priming centrifugal pump for portable dry well installation, not submersible.

The centrifugal pump is equipped with a vortex impeller. Stable installation is ensured by a low-vibration polypropylene baseplate.

Scope of delivery

Pump includes 2 oval counter flanges with inside thread G 1 ½, carrying handle and installation and operating instructions.

Wilo - Water supply pumps

wilo-pumps-waterDesign for Water supply pumps

Non-self-priming water supply unit with frequency converter





Application Wilo – Water supply pumps

  • Water supply
  • Rainwater utilisation
  • Irrigation and spraying

Type key

Example EMHIL 304 M
EMHIL Water supply unit with frequency converter Electronic Control
304 Pump series MHIL 304
M Electrical supply to the system 1~230 V


Special features/product advantages Wilo – Water supply pumps


  • Heavy-duty multistage pump with stainless steel hydraulics
  • ID), freeze protection
  • Plug & Pump, pre-assembled and fitted with connecting cable
  • Meets the EMC standards for domestic use (EN 61000-6-2 and EN 61000-6-3)
  • Float switch can be connected optionallly


Wilo – Water supply pumps for Technical data


  • Maximum operating pressure: 10 bar
  • Max. fluid temperature: 40 °C
  • Min. fluid temperature:0 °C
  • Maximum ambient temperature: 50 °C
  • Mains connection: 1~230 V, 50/60 Hz


Equipment/function Wilo – Water supply pumps


  • including 1.4 m mains connection and plug
  • including EMC filter
  • with built-in pressure and flow monitors


Description/design Wilo – Water supply pumps


  • Multistage pump with stainless steel hydraulics
  • Pre-cabled and pre-assembled with rotatable connections and shut-off valve
  • Fully automatic protection against:
    • Excess current
    • Dry running
    • Undervoltage and overvoltage
    • Excess temperature
    • Short-circuit


Materials for Wilo – Water supply pumps


  • Stage chambers 1.4301
  • Impellers: 1.4301
  • Shaft: 1.4028
  • Mechanical seal: Si-carbide / carbon
  • Pump housing: Cast iron
  • Gasket: EPDM
  • Rotatable connection: Brass
  • Shut-off valve: POM


Scope of delivery


1 control device Electronic Control with:

  • 1 series MHIL pump with 1 Electronic Control (1.4 m connecting cable)
  • 1 rotatable connection and 1 check valve
  • One each Installation and operating instructions for MHIL pump and for Electronic Control