Wilo-Actun ZETOS

Efficient raw water intake for all fields of applications.

Enquire About This Product

  • Description

    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 86 %, 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.

  • Advantages
    • Energy-saving water supply with a pump efficiency of up to 86%
    • Cost-efficient operation, thanks to the highest overall efficiency in this class with permanent magnet motor
    • High reliability as a result of the particularly corrosion-resistant hydraulics made completely of 1.4408 (AISI 316) stainless steel investment casting
    • High wear resistance: Max. sand content of up to 150 g/m³
    • ACS approval for use with drinking water
    • Straightforward maintenance, easy installation and dismantling
  • Technical Features

    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

     

    Liquid

    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

     

    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: 765 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 5 …, NU 711 = 350 m
        • NU 6 …, NU 701, NU 8 …, NU 9 …, NU 12 …, NU 16 … = 300 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.

     

    Options

    • Special voltages
    • Higher fluid temperatures
    • Flange adapter to accommodate different connection sizes
    • Drinking water as motor filling (T version)
    • Version with pressure shroud for the direct installation of the unit in the pipeline system. Standard models are without mounted non-return valves. The maximum inlet pressure is 10 bar.

     

    Accessories

    • Cooling shrouds
    • Pressure shroud
    • Bearing brackets and anti-vortex plate
    • Transitions
    • Switchgears
    • Frequency converter
    • Output filter
    • Plastic cable connector set
  • Downloads

Why Wilo Pumps…

test

Self-Priming

test

Convenient

test

Highly-Efficient

test

Noise-Free

test

Diversity

test

Optimised Design

What Trebles Customers Think

We relied on Trebles expertise to ensure the right products were sourced for our project.

Top workmanship and a professional attitude from a supportive team

Excellent customer service again! You genuinely make my life so much easier

Excellent service and a company I would recommend to anyone in future

Engineers were very professional with an excellent knowledge of their trade

We’re writing to express our sincere thanks to all who help ensure our hospitals are able to run smoothly

Job delivered and commissioned at the height of the pandemic with no changes to the excellent service we always receive.

The team at Trebles were great. I really can’t praise them enough.

Not many providers would be able to fully breakdown & rebuild a booster on site