Wilo-EMU 10" ... 24"

Series description

Design

Multistage 10...24” submersible pump in sectional construction for vertical and horizontal installation

Application

  • For drinking water supply / general water supply from boreholes and rainwater storage tanks
  • Process water supply
  • Municipal water supply
  • Sprinkling and irrigation
  • Pressure boosting
  • Pumping water in industrial applications and for water control
  • Utilisation of geothermal energy
  • Utilisation in offshore areas

Type key

Example:Wilo-EMU K 127.1-7 + NU 122-2/100
Hydraulics:K 127.1-7
K127Hydraulics
1High-stage material version
7Number of hydraulic stages
  
Motor:NU 122-2/100
NUSubmersible motor (NU…, U…)
122Size (5… , 6… = 6"; 7…, 8… = 8"; 9… = 10"; 12… = 12"; 16… = 16"; 21… = 21")
2Number of poles
100Package length

Special features/product advantages

  • Energy-efficient hydraulic systems via customizable hydraulics at the desired duty point
  • Drinking water version with ACS approval
  • Motors with sheath current cooling (CoolAct technology) for high power densities
  • Easy maintenance, rewindable motors
  • Optional Ceram CT coating for increasing efficiency

Equipment/function

  • Multistage submersible-motor pump with radial or semi-axial impellers
  • Hydraulics and motor freely configurable according to power requirements
  • Non-return valve can be integrated (depending on type)
  • Three-phase motor for direct or star-delta starting
  • Hermetically cast motors
  • Rewindable motors

Technical data

Mains connection: 3~400 V, 50 HzImmersed operating mode: S1Max. fluid temperature (higher temperatures on request):NU 5... / NU 6… / NU 7… / NU 811 = 30 °CNU 801 / NU 9... / NU 12.. / NU 16… / U… = 20 °CMinimum motor flow:NU 5... / NU 7... = 0.16 m/sNU 611 = 0.1 - 0.5 m/sNU 811 = 0.5 m/sNU 801 / NU 9... / NU 12… / NU 16… / U... = 0.1 m/sMax. sand content: 35 g/m3Max. number of starts: 10/hMax. immersion depth:NU 5…, NU 7…= 350 mNU 611, NU 811 = 100 mRemaining motors = 300 mProtection class: IP 68Control range for frequency converter:NU 5... / NU 6… / NU 7… / NU 811 / U 21… = 30-50 HzNU 801 / NU 911 / NU 12… / NU 16… (2-pole) = 25-50 HzNU 801 / NU 911 / NU 12… / NU 16… (4-pole) = 30-50 Hz

Description/design

Submersible-motor pump for vertical or horizontal installation.

Hydraulics

Multistage submersible-motor pump with radial – semi-axial hydraulics. Housing parts made of EN‐GJL or EN‐GJS with 2K coating or G‑CuSn10, impellers made of G‑CuSn10 or NiAl‐Bz.

Pressure port as threaded connection (up to K 12...) or as flange connection. A non-return valve can be installed instead of the pressure port on types K 12..., K 14…. For the remaining types, a non-return valve can be mounted directly on the pressure outlet.

Motor

Three-phase motor for direct and star-delta starting Sealed, hermetically cast motor with enamel-insulated winding, resin-impregnated (NU 5…, NU 7…) or rewindable motor with PVC‐insulated winding (NU 611, NU 8…, NU 9…, NU 12…, NU 16…, U…).

Standardised pump connection. Sealing of the motor shaft is achieved through the use of a mechanical seal (NU… series) made of solid silicon carbide material or through the use of rotary shaft seals (U… series). Self-lubricating motor bearing. Thrust bearing with rockers for absorption of high axial thrust. Negative axial thrust is absorbed by the counter-thrust bearing.

Motors in the NU 5…-, NU 7...-, NU 801, NU 9…, NU 12… and NU 16… series are filled with a water‐glycol mixture, motors in the NU 611 and NU 811 series are filled with a water-glycerine mixture. NU 611-, NU 8…-, NU 9…-, NU 12… and NU 16… series motors can also be filled with drinking water (T version). U… series motors generally have to be filled with drinking water. Frequency converter operation is permitted (SF 1.1).

Cooling

The motor is cooled by the fluid. The motor must always be operated in submerged state. The limit values for the max. fluid temperature and the minimum flow rate must not be exceeded. Vertical installation is possible optionally with or without cooling jacket. For horizontal installation, bearing brackets must be used for reinforcement of the unit. An anti-vortex plate or cooling jacket may be used to improve the inlet flow.

Pressure shroud

The pressure shroud is used for direct installation of the unit in the pipe network. Standard models are without mounted non-return valves. The maximum inlet pressure is 10 bar or 5 bar, starting from a pressure shroud diameter of 559 mm.

Configuration

  • No suction mode is possible with these units!
  • The unit must be fully immersed in water during operation.

Scope of delivery

  • Hydraulics + motor fully assembled
  • Connecting cable approved for drinking water, cable cross-section and length per standard design or per customer request
  • Installation and operating instructions

Options

  • Special materials
  • Drinking water version with ACS approval
  • 60 Hz version
  • PT100 sensor for thermal motor monitoring

General notes - ErP (ecological design-) directive

The benchmark for most efficient water pumps is MEI ≥ 0.70The 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/efficiencychartsPumps with power consumption > 150 kW or a volume flow QBEP < 6 m3/h are not subject to the Ecodesign Directive for water pumps. Therefore, no MEI value is shown.

Duty chart

Duty chart 2-pole

Duty chart

제품

Design

NEMA connection

Standardised connection

Integrated non-return valve

Without non-return valve

AC motor

-

Three-phase motor

Direct activation

Star-delta activation

FC operation

Motor with cast stator

Rewindable motor

Oil motor filling

-

Water-glycol motor filling

Drinking water motor filling

º

Hydraulics/motor preassembled

Application

Horizontal installation

Vertical installation

Equipment/function

Motor temperature monitoring, PT100

º

PTC motor temperature monitoring

º

Capacitor box for 1~230 V

-

Dry-running protection

º

Integrated lightning protection

-

Accessories

Bearing brackets for horizontal installation

º

Cooling jacket

º

Non-return valve

º

Pressure shroud

º

Materials

Pump housing

On customer request

Pump housing (special version)

On customer request

Impeller

On customer request

Impeller (special version)

On customer request

Motor housing

On customer request

Motor housing (special version)

On customer request

Downloads

Certification Booklet Wilo-EMU D/DCH/K/KD/KM/NK/SCH / Wilo-Sub TWI/TWU / Wilo-Zetos K8 (w/o motor)

Article Number 6080455
Edition 1702
Version number 02
Page format A4
Number of pages 71

PDF (1 MB)

다운로드

Certification Booklet Wilo-EMU NU/U-Motor

Article Number 6080454
Edition 1702
Version number 01
Page format A4
Number of pages 8

PDF (427 kB)

다운로드

Certification Booklet Wilo-EMU / Wilo-Zetos + NU / U-Motor

Article Number 6074549
Edition 1702
Version number 04
Page format A4
Number of pages 53

PDF (935 kB)

다운로드

Clean Water

Page format A4
Number of pages 24

PDF (8 MB)

다운로드

General overview

Edition 2017
Page format A4
Number of pages 72

PDF (46 MB)

다운로드

Wilo-EMU pressure shroud pump with pre-filled motor

Version number 3.0
Page format A4
Number of pages 63

PDF (897 kB)

다운로드

Wilo-EMU pressure shroud pump without pre-filled motor

Version number 3.0
Page format A4
Number of pages 63

PDF (967 kB)

다운로드

Wilo-EMU borehole pump with pre-filled motor

Version number 3.0
Page format A4
Number of pages 77

PDF (1 MB)

다운로드

Wilo-EMU borehole pump without pre-filled motor

Version number 3.0
Page format A4
Number of pages 67

PDF (998 kB)

다운로드

PDF: Wilo-EMU 10" ... 24"

구성

페이지 선택

페이지 크기

선택적 정보

머리글에 표시 할 개인 정보를 입력 할 수 있습니다.

다운로드