Product Description
Zenit UNIQA ZUG-GR Grinder Pump
The Zenit UNIQA ZUG-GR Grinder Pump is a heavy-duty electric submersible pump for soiled wastewater containing fibres, filaments, organic waste and breakable solids. Its grinding system uses a rotary triangular steel knife; therefore, it reduces troublesome material before the liquid enters the discharge line.
Moreover, the grinder hydraulics combine a cast-iron multi-channel open impeller with a high-head two-pole motor. Consequently, the pump supports professional wastewater lifting where fibrous debris could block conventional hydraulics.
ZUG-GR Grinder Pump Design
The Zenit UNIQA ZUG-GR Grinder Pump uses a cast-iron multi-channel open impeller. In addition, a rotating triangular steel knife works against the cutting plate to grind compatible solids and fibres.
As a result, this UNIQA grinder submersible pump reduces particle size before discharge. However, it cannot process stones, metal pieces or other non-destructible objects. Therefore, operators should prevent unsuitable debris from entering the sump.
Key Features of the Zenit ZUG GR Sewage Pump
- Cast-iron multi-channel open impeller
- Rotary triangular steel grinding knife
- Suitable for fibres and filaments
- Professional and heavy-duty design
- 7.5–11 kW power range at 50 Hz
- Maximum 50 Hz flow up to 9.0 l/s
- Maximum 50 Hz head up to 63.5 m
- 11 kW configuration at 60 Hz
- Maximum 60 Hz flow up to 6.4 l/s
- Maximum 60 Hz head up to 78 m
- Two-pole, three-phase motor
- DN50 or G2-inch discharge options
- Premium IE3 motor design
- WET and DRY installation versions
- Dual silicon-carbide mechanical seals
- Certified hazardous-area versions available
Together, these features make the Zenit UNIQA ZUG-GR Grinder Pump suitable for demanding wastewater systems.
UNIQA Grinder Pump Performance
At 50 Hz, the ZUG GR grinder pump range uses 7.5 to 11 kW two-pole motors. Moreover, selected models deliver up to 9.0 l/s and 63.5 metres of head.
At 60 Hz, Zenit lists an 11 kW two-pole configuration. Meanwhile, maximum series performance reaches 6.4 l/s and 78 metres of head.
However, these figures represent separate limits across the range. Therefore, engineers must select each Zenit grinder pump from its model-specific hydraulic curve.
Rotary-Knife ZUG GR Hydraulics
The UNIQA grinder submersible pump uses a rotary three-blade knife to break down compatible organic waste, processing residue, fibres and filaments.
Consequently, the grinder system can reduce blockage risk inside smaller discharge pipelines. Moreover, the high-head hydraulics help move wastewater through rising mains and pressure systems.
Nevertheless, users should confirm solids type, fibre load, density, temperature and chemical composition before selecting the Zenit UNIQA ZUG-GR Grinder Pump.
IE3 Motor for the Zenit Grinder Pump
Zenit designs the UNIQA motor to target Premium IE3 efficiency according to EN 60034-30. Consequently, the Zenit grinder pump combines high performance with controlled energy consumption.
In addition, the motor suits prolonged operation and frequent starts. Therefore, it can support pumping stations with irregular inflow and repeated duty cycles.
WET and DRY UNIQA Grinder Versions
The WET version operates while submerged in the wastewater sump. Alternatively, the DRY version can run continuously while partially submerged or installed in a dry chamber.
The UNIQA DRY grinder pump uses an internal closed cooling circuit. Consequently, it needs no external cooling-water supply during normal operation. Moreover, the system supports continuous duty under dry or partially submerged conditions.
ZUG GR Seals, Monitoring and Installation
The Zenit ZUG GR sewage pump uses two silicon-carbide mechanical seals inside an oil chamber. Furthermore, an oil lifter keeps the upper seal lubricated, while a moisture probe monitors the seal chamber.
In addition, the pump supports free-standing, permanent wet-well and bottom-coupler installations. Therefore, engineers can adapt the Zenit UNIQA ZUG-GR Grinder Pump to new stations or replacement projects.
ZUG GR Wastewater Pump Applications
The UNIQA grinder submersible pump suits:
- Industrial wastewater treatment plants
- Municipal sewage lifting
- Wastewater containing fibres and filaments
- Organic-waste transfer
- Processing-residue pumping
- Commercial sewage stations
- Food-processing wastewater
- Selected livestock wastewater
- Pressure sewer systems
- Heavy-duty drainage applications
However, agricultural duties require a complete solids and chemical review. Therefore, users should not assume suitability for every manure or slurry application.
Certified Zenit UNIQA Grinder Pumps
Zenit offers ATEX and IECEx-certified UNIQA versions for potentially explosive atmospheres. Available markings include UNIQA WET II 2G Ex db h IIB T4 Gb and UNIQA DRY II 2G Ex db h IIB T4 Gb / II 2D Ex h tb IIIC T135°C Db.
However, certification depends on the exact configuration. Therefore, buyers must verify the nameplate and certificates for the ordered Zenit UNIQA ZUG-GR Grinder Pump.
Selecting a ZUG GR Grinder Pump
Correct selection depends on required flow, total head, fibre content, solids characteristics and installation type.
Moreover, engineers should confirm voltage, frequency, discharge connection, liquid conditions and hazardous-area classification. Therefore, specialists should select the Zenit ZUG GR sewage pump from model-specific performance data.
Request a Zenit ZUG GR Pump in the UAE
Contact our pump specialists for technical selection, specifications and UAE pricing.
Please provide the required flow, total head, wastewater description, fibre content, sump layout and installation method. Consequently, our team can recommend the correct Zenit UNIQA ZUG-GR Grinder Pump configuration.


