Product Description
Zenit UNIQA ZUG-OC Open Channel Pump
The Zenit UNIQA ZUG-OC Open Channel Pump provides heavy-duty submersible pumping for sewage and wastewater containing suspended solids. Its cast-iron channel impeller provides a large free passage; therefore, the pump can move high wastewater volumes while reducing clogging risks.
Moreover, the ZUG-OC range combines efficient hydraulics with a Premium IE3 motor design. Consequently, it suits municipal, commercial and industrial wastewater systems across India that require dependable lifting and high-flow performance.
ZUG-OC Open Channel Pump Design
The Zenit UNIQA ZUG-OC Open Channel Pump uses a channel impeller manufactured from cast iron as standard. Its open hydraulic passages allow suspended solids to pass through the pump without requiring a grinder or cutting system.
In addition, Zenit designs the ZUG-OC hydraulics to resist clogging and fouling. Therefore, this UNIQA open-channel submersible pump suits high-flow sewage, drainage and wastewater duties.
Key Features and Benefits
The Zenit ZUG-OC range provides:
- Cast-iron channel impeller
- Large free passage
- Suitability for suspended solids
- 1.1–250 kW range at 50 Hz
- Two-, four-, six- and eight-pole motors
- DN65–DN500 discharge sizes
- Free passage up to 160 × 110 mm
- Maximum 50 Hz flow up to 1,240 l/s
- Maximum 50 Hz head up to 100.3 m
- Premium IE3 motor design
- WET and DRY installation versions
- Dual silicon-carbide mechanical seals
- Seal-chamber leakage monitoring
- Hazardous-area versions available
Together, these features make the Zenit UNIQA ZUG-OC Open Channel Pump suitable for demanding sewage and wastewater infrastructure.
UNIQA Open-Channel Pump Performance
The 50 Hz ZUG-OC wastewater pump range provides:
- Motor power: 1.1–250 kW
- Motor poles: Two, four, six or eight
- Discharge sizes: DN65–DN500
- Maximum free passage: 160 × 110 mm
- Maximum flow: 1,240 l/s
- Maximum head: 100.3 m
Meanwhile, selected 60 Hz models cover 2.2–200 kW and provide flow rates up to 1,186 l/s with heads up to 92.4 metres.
However, these figures represent separate maximum limits across the range. Therefore, engineers should select the exact pump from its model-specific hydraulic curve.
ZUG-OC Anti-Clogging Hydraulics
The Zenit ZUG-OC sewage pump combines large hydraulic passages with efficient flow characteristics. As a result, it can transfer suspended solids while maintaining the capacity required by major pumping stations.
Moreover, selected configurations can use a flushing valve to keep wastewater moving inside the collection tank. Consequently, the system may reduce sediment accumulation and simplify sump maintenance.
IE3 Motor Efficiency
Zenit designs UNIQA motors to achieve Premium IE3 efficiency according to EN 60034-30. Therefore, the Zenit UNIQA ZUG-OC Open Channel Pump supports controlled energy consumption during prolonged wastewater duties.
In addition, Class H insulation and integrated thermal protection support demanding operating cycles. Consequently, the motor combines strong output with dependable protection.
WET and DRY Installation Versions
The WET ZUG-OC pump operates fully submerged inside a sump or wet well. Alternatively, the DRY version can operate while partially submerged or installed inside a dry chamber.
The DRY UNIQA pump uses a closed cooling jacket with internal liquid circulation. Therefore, it requires no external cooling-water supply during normal operation.
Moreover, suitable DRY configurations support continuous S1 operation.
Mechanical Seals and Monitoring
The Zenit UNIQA ZUG-OC Open Channel Pump uses two silicon-carbide mechanical seals inside a large oil chamber. Moreover, a leakage-detection probe monitors the seal chamber as standard.
Consequently, operators can identify water ingress early and plan maintenance before seal deterioration causes an unexpected shutdown.
ZUG-OC Material Options
Standard ZUG-OC hydraulics use EN-GJL 250 cast iron. Alternatively, selected configurations may use:
- AISI 316 stainless steel
- AISI 329 Duplex
- Molib-tech materials
Consequently, engineers can select materials for more demanding wastewater conditions. However, availability depends on the specific model and configuration.
Zenit ZUG-OC Applications in India
The Zenit UNIQA ZUG-OC Open Channel Pump may support applications across India such as:
- Municipal sewage lifting
- Industrial wastewater transfer
- Drainage pumping stations
- First-rain collection tanks
- Wastewater containing suspended solids
- High-flow sewage systems
- Treatment-plant intermediate transfer
- Process-water circulation
- Commercial wastewater stations
- Dense and heavily soiled liquids
Moreover, suitable certified configurations may support environments where wastewater contains traces of potentially explosive substances.
Hazardous-Area Configurations
Zenit offers selected ATEX, IECEx and FM-certified UNIQA configurations for potentially explosive environments.
However, certification varies according to the motor, hydraulics and WET or DRY construction. Therefore, engineers should verify the exact certification marking and documentation before installation.
Selecting the Correct Zenit ZUG-OC Pump
Correct selection depends on:
- Required flow and total head
- Suspended-solids size
- Wastewater density
- Sump dimensions
- Installation method
- Discharge size
- Operating frequency
- Motor power
- Construction material
- Hazardous-area requirements
Therefore, engineers should select the Zenit UNIQA ZUG-OC Open Channel Pump from model-specific performance data. Otherwise, an unsuitable configuration may reduce efficiency, increase clogging risk or shorten equipment life.
Product Enquiries in India
The Zenit UNIQA ZUG-OC Open Channel Pump is presented through Pumps Bharat for municipal sewage, industrial wastewater, drainage stations, treatment plants and other high-flow solids-handling applications across India.
When submitting an enquiry, please provide the required flow, total head, solids characteristics, sump dimensions, power supply and installation arrangement. Consequently, the available ZUG-OC configurations can be evaluated against the application requirements.