UNIQA Series chopper pumps

Zenit has extended its UNIQA range by developing models with high-efficiency motors and a hydraulic Chopper specifically for heavily soiled waters, capable of cutting up and expelling any destructible solid body in the waste-water thanks to an efficient chopping system.

The Zenit solution

ZUG CP models with high-efficiency motors and hydraulic "Chopper" can expel any solid shreddable body present in the wastewater by exploiting an effective cutting system.

Range

Zenit Uniqa Series ZUG Chopper electric submersible pump

ZUG Chopper

  • Channel impeller in hard cast iron as standard
  • Chopper sistem able to cut particles of any shape of proportion
  • Efficiency of hydraulics only 3/5% less than that of a normal channel impeller

  • Liquids containing solid parts and fibres
  • Suitable for sewage, lifting of not strained black water
Zenit Uniqa Series ZUG Chopper electric submersible pump impeller

Product range characteristics

  • Power supply
    380/400 V ~3
  • Frequency
    50 Hz
  • Power
    3 ÷ 45 kW
  • Poles
    2 / 4 / 6
  • Vertical discharge
    -
  • Horizontal discharge
    DN80 ÷ DN250
  • Free passage
    -
  • Max flow rate
    244.0 l/s
  • Max head
    75.0 m
  • Power supply
    380/400 V ~3
  • Frequency
    60 Hz
  • Power
    3 ÷ 45 kW
  • Poles
    2 / 4 / 6
  • Vertical discharge
    -
  • Horizontal discharge
    DN80 ÷ DN250
  • Free passage
    -
  • Max flow rate
    244.0 l/s
  • Max head
    75.0 m

Details

Zenit Uniqa Series ZUG Chopper electric submersible pump knife

The heart of the system consists of a robust steel knife with a sharp edge, skimming the blades of the channel impeller for cutting solid bodies of any shape and material.

Zenit Uniqa Series electric submersible pump clogging proof hydraulics

Channel chopper impeller made of hard cast iron with solid body shredding system.
Hydraulic efficiency only -3/5% compared to a normal channel impeller.

Zenit Uniqa Chopper Series electric submersible pump cutting system

The innovative No-Lock system allows the cutting of shreddable solid bodies present in the wastewater, avoiding potential blockage.

Zenit Uniqa Chopper Series electric submersible pump hard cast iron
Channel impeller with sharp-edged blades made of a new material we call Hard cast iron, which is stronger than the commonly used grey cast iron, with a hardness between 450 and 500 HB.

Cutting system formed by a knife skimming the impeller blades, made of AISI 431 steel.
This material has a carbon content of about 1.2%. It is an excellent stainless steel with a hardness value of about 300 HB and a high shear strength.
Zenit Uniqa Chopper Series electric submersible pump anti clogging system

The ACS (Anti-Clogging System) consists of a spiral groove of suitable depth cut into the diffuser plate.
This prevents clogging of the impeller even with heavily soiled liquids, allows stringy items to be pulled out or unwound and renders the hydraulics clogging-proof.

Zenit Uniqa Chopper Series electric submersible pump atex

ATEX version suitable for installation in potentially explosive atmosphere. Humidity probe to detect water in the mechanical-seal oil-chamber is standard for this ATEX version.

Zenit Uniqa Chopper Series electric submersible pump high efficiency motor

Class H motor and PREMIUM IE3 efficiency guaranteeing high performance and excellent energy efficiency.

Zenit Uniqa Chopper Series electric submersible pump motor compartment

One or more probes can be installed inside the motor, terminal box or oil chamber to signal the presence of water or moisture. Bearing vibration and temperature sensors.

Want to configure your product? Explore the Zeno Navigator Suite

Specifications

The implemented constructive specifications and technical solutions make the UNIQA Chopper perfect for a wide range of civil and industrial applications 

  • Heavy-duty applications in civil wastewater treatment plants
  • Pumping stations for wastewater containing solids
  • Sewerage lifting systems
  • Farms and livestock farm lifting systems
  • Meat processing industry
  • Fishing and canning industry
  • Pulp and paper mill lifting systems
  • Water recirculation in the textile and tanning industry
  • Pumping of wastewater in industrial processes in general
Zenit UNIQA Series Chopper 50 Hz electric submersible pump operating ranges
Max operating temperature 40°C (60°C on request)
pH of treated liquid 6 ÷ 14
Viscosity of treated liquid 1 mm²/s
Max immersion depth 20 m
Density of treated fluid max 1 Kg/dm³
Max acoustic pressure <70 dB
Max starts per hour 20 [<10 kW] - 15 [≥ 10 kW]
Motor casing Cast iron EN-GJL-250
Impeller Hard Cast Iron
Nuts and bolts Stainless steel - Class A2-70
Standard gaskets NBR - rubber
Drive shaft Stainless steel - AISI 431
Cutting knife Stainless steel - AISI 440C
Painting Bicomponent epoxy paint with high resistance to corrosion
Zenit DAC V 65 350 couplers

DAC-V 65÷350

Zenit DAC H couplers

DAC-H

Zenit DAC R couplers

DAC-R

Zenit KBS base plates

KBS

Zenit KBC base plates

KBC

Zenit KBS H base plates

KBS-H

Zenit FLX flushing valve

FLX

Zenit SRP knife gate valve

SRP

Zenit VAC clapet check valve

VAC

Zenit VAP 65 300 ball check valve

VAP 65÷300

Zenit KCR Uni bend unions

KCR UNI

Zenit KCR Uni Gas bend unions

KCR UNI-GAS

Zenit KAF sliding flange

KAF

Zenit KFL flange

KFL

Zenit KAT chain

KAT

Zenit LEVEL float switch

LEVEL

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Downloads

Uniqa Series
Data Booklet

Uniqa Series

Uniqa Series 60Hz
Data Booklet

Uniqa Series 60Hz

Hard Cast Iron
Catalogue

Hard Cast Iron

Uniqa Series
Catalogue

Uniqa Series

Uniqa Chopper Series
Catalogue

Uniqa Chopper Series

Industrial & Civil
Catalogue

Industrial & Civil

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