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Wilo-Actun ZETOS | Wilo

Wilo-Actun ZETOS

Efficient raw water intake for all fields of applications

Your advantages
Wilo-Actun ZETOS-K10

Efficient raw water intake for all fields of applications

The Wilo-Actun ZETOS is our versatile solution for efficient raw water intake, from municipal water supply to agriculture and mining. With a best-in-class pump efficiency of up to 85.5 %, the ZETOS is ideal for energy-efficient water supply in virtually all processes. The tough stainless steel investment casting and the robust design guarantee a long service life and a sustainable high efficiency, especially in difficult conditions, i.e. a high sand content of up to 150 g/m3.


Your advantages

  • High pump efficiency of up to 85.5 %
  • A previously unequalled total efficiency of more than 75 % in this class with permanent magnet motor
  • Particularly corrosion-resistant thanks to hydraulics comprised entirely of cast stainless steel in 1.4408 (AISI 316)
  • High wear resistance: max. sand content of 150 g/m³
  • ACS approved for domestic water applications
  • Easy maintenance, simple to dismantle system
Series description
Wilo-Actun ZETOS

Design

Multi-stage stainless-steel investment-casting submersible pump in sectional construction for vertical and horizontal installation.

Application

  • Boreholes and cisterns
  • Sprinkling and irrigation
  • Ground-water lowering
  • Pressure boosting
  • Off-shore installations
  • Fire-extinguishing systems
  • Geothermal energy and thermal applications
  • Underground mining

Liquids

For pumping in the following commercial areas:

  • Drinking water (ACS approval, motor-dependant)
  • Industrial water with max. sand content up to 150 g/m³
  • Sea water

Equipment/function

  • With or without integrated non-return valve
  • NEMA coupling up to nominal motor size of 8"
  • Wilo standard connection starting at nominal motor size of 10"

Typekey

Example:

Wilo-Actun ZETOS-K8.130-17 + NU 711-2/130

Hydraulics

Actun ZETOS-K8.130-17

Actun

Product family

ZETOS

Series made of stainless steel investment casting

K

Pump type

8

Diameter of the hydraulics in inches

130

Volume flow in m³/h at the best efficiency point at 50 Hz

17

Number of hydraulic stages

Motor

NU 711-2/130

NU

Submersible motor

711

Size:

  • 5 ..., 6 ... = 6"
  • 7 ..., 8 ... = 8"
  • 9 ... = 10"
  • 12 ... = 12"
  • 16 ... = 16"

2

Number of poles

130

Motor-dependant definition:

  • NU 5 ..., NU 6 ..., NU 7 ..., NU 811 ..., NU 812 ...: Rated power in kW at 50 Hz
  • NU 801 ..., NU 9 ..., NU 12 ..., NU 16 ...: Stator length in cm

Technical data

Hydraulics

  • Max. volume flow: 485 m³/h
  • Max. delivery head: 640 m
  • Max. fluid temperature: 70 °C
  • Max. sand content: 100 g/m³ (K12), 150 g/m³ (K8, K10)
  • Discharge port
    • K8: G 5, DN 100/PN 10/16, DN 125/PN 10/16, DN 150/PN 10/16
    • K10: G 6, DN 150/PN 10/16, DN 150/PN 40
    • K12: 8-8 NPT, DN 200/PN 10/16, DN 200/PN 25, DN 200/PN 40

Motor

  • Mains connection: 3~400 V, 50 Hz ±10 %; 3~460 V, 60 Hz ±10 %
  • Max. fluid temperature: 60 °C, depending on motor type and flow velocity at the motor
  • Submerged operating mode: S1
  • Max. number of starts:
    • NU 5 ..., NU 6 ..., NU 7 ... = 20/h
    • NU 8 ..., NU 9 ..., NU 122 ... = 10/h
    • NU 160 = 5/h
  • Max. immersion depth:
    • NU 501, NU 512, NU 701, NU 711 = 350 m
    • NU 801, NU 911, NU 122, NU 160 = 300 m
    • NU 611, NU 612, NU 811, NU 812 = 100 m
  • Protection class: IP68
  • Control range for frequency converter:
    • Asynchronous motors: NU 501, NU 701 = 30 ... 50 Hz
    • Asynchronous motors: NU 611, NU 801, NU 811, NU 911, NU 122, NU 160 = 25 ... 50 Hz
    • Permanent magnet motors: NU 512, NU 612, NU 711, NU 812 = 60 ... 100 Hz
    • After consultation with the manufacturer, motors can also be operated at higher frequencies!

Construction

Hydraulics

Multi-stage submersible pump with semi-axial hydraulics. Housing parts and impellers made of stainless steel investment casting (1.4408). Discharge port with threaded or flange connection available with or without integrated non-return valve. Motor connection as standard NEMA connection (up to 8") or standard Wilo connection (from 10").

Motor

Asynchronous and synchronous motors can be selected as the drive:

  • Asynchronous three-phase AC motors for direct and star-delta starting:
    • NU 501, NU 701: Hermetically sealed motor with enamel-insulated winding, resin-impregnated
    • NU 611, NU 811, NU 911, NU 122, NU 160: Rewindable motor with insulated PE2 or PVC winding
    • Operation on the frequency converter is permitted!
  • Synchronous three-phase permanent magnet motor for direct starting:
    • NU 512: Hermetically sealed motor with enamel-insulated winding, resin-impregnated
    • NU 612, NU 711, NU 812: Rewindable motor with insulated PE2 winding
    • A frequency converter is absolutely necessary!

Motor shroud made of steel, stainless steel or bronze casting. Hydraulic connection as standard NEMA connection (up to 8") or standard Wilo connection (from 10"). The motor shaft is sealed with a mechanical seal made of solid silicon carbide material. The motor bearings are self-lubricating. The thrust bearing is equipped with rockers to absorb the high axial thrust. The counter-thrust bearing absorbs the negative axial thrust.

Motors in the NU 5 … and NU 7 … series are filled with a water-glycol mixture. All other motors are filled with a water-glycerine mixture.

Cooling

  • The motor is cooled by the pumped fluid. The motor must always be immersed.
  • The limit values for maximum fluid temperature and minimum flow velocity must be adhered to.
  • Vertical installation is possible with or without cooling shroud.
  • In horizontal installation, the unit is supported by bearing blocks. An anti-vortex plate or cooling shroud may be used to improve the inlet flow.

Scope of delivery

  • Unit (hydraulics system + motor) pre-assembled at the factory
  • Connection cable per customer request
  • Installation and operating instructions
Documents

General overview

General Overview 2022 - International version

Edition 2022
Page format 209.9 x 297.0 mm
Number of pages 78
PDF (38 MB)

Certification booklet

Wilo-EMU D/DCH/K/KM/SCH (w/o motor), Wilo-Sub TWI/TWU (w/o motor), Wilo-Actun ZETOS-K8 (w/o motor), Wilo-Actun ZETOS-K10 (w/o motor)

Article Number 6080455
Edition 2021-06
Page format 209.9 x 297.0 mm
Number of pages 72
PDF (7 MB)

Wilo-EMU D/DCH/K/KM/SCH (w/ motor), Wilo-EMU D/DCH/K/KM/SCH (w/ motor), Wilo-Actun ZETOS-K8 (w/ motor), Wilo-Actun ZETOS-K10 (w/ motor)

Article Number 6074549
Edition 2021-06
Page format 209.9 x 297.0 mm
Number of pages 56
PDF (6 MB)

Brochure

Product information Wilo-EFC. Powerful, flexible, cost-efficient.

Page format 209.9 x 297.0 mm
Number of pages 8
PDF (8 MB)

Wilo-Actun ZETOS - Your universal water supply solutions

Page format 209.9 x 297.0 mm
Number of pages 12
PDF (4 MB)

Certificate REACH

REACH Regulation

Edition 2021-05
Page format 209.9 x 297.0 mm
Number of pages 4
PDF (212 KB)