Product Description
Zenit Grey DRG Dreno Pump
The Zenit Grey DRG Dreno Pump provides dependable submersible pumping for drainage, civil lifting and industrial water recirculation. Its cast-iron channel impeller creates a large free passage; therefore, the pump can handle compatible water containing suspended solids.
Moreover, Zenit redesigned the Grey Series hydraulics and motors to improve performance, energy use and versatility. Consequently, the DRG range supports efficient operation in professional water-management systems across India.
Zenit DRG Drainage Pump Design
The Zenit Grey DRG Dreno Pump uses a cast-iron channel impeller. Unlike a vortex impeller, the channel design guides liquid through defined hydraulic passages.
As a result, the Zenit DRG drainage pump combines efficient fluid transfer with solids-handling capability. In addition, the large free passage helps reduce clogging when water contains compatible suspended matter.
Key Features and Benefits
The Grey DRG submersible pump provides:
- Cast-iron channel impeller
- Large free passage
- Power range from 0.55 to 18.5 kW
- Two-, four- and six-pole motor options
- 50 Hz and 60 Hz configurations
- Maximum free passage up to 100 × 70 mm
- Maximum 50 Hz flow up to 205.3 l/s
- Maximum 50 Hz head up to 50 m
- Maximum 60 Hz flow up to 201 l/s
- Maximum 60 Hz head up to 38.5 m
- Horizontal and vertical discharge options
- Two silicon-carbide mechanical seals
- AISI 431 stainless-steel drive shaft
- Seal-chamber leakage monitoring
- ATEX and IECEx versions available
Together, these features make the Zenit Grey DRG Dreno Pump suitable for demanding drainage and water-lifting installations.
DRG Channel-Impeller Pump Performance
At 50 Hz, the DRG range covers motor ratings from 0.55 to 18.5 kW. Moreover, selected configurations deliver flow rates up to 205.3 l/s and heads up to 50 metres.
Meanwhile, selected 60 Hz models provide flow rates up to 201 l/s and heads up to 38.5 metres.
However, these figures represent separate maximum limits across the complete range. Therefore, engineers should select each Zenit DRG pump from its model-specific hydraulic performance curve.
Large Free-Passage Hydraulics
Selected DRG models provide a free passage up to 100 × 70 mm. Consequently, the Zenit Dreno pump can handle compatible suspended solids that may block smaller hydraulic passages.
Moreover, the channel impeller helps move solids towards the discharge while limiting fouling around the hydraulic section.
Nevertheless, the DRG does not use a grinder, chopper or cutting system. Therefore, wastewater containing long fibres, filaments or difficult solids may require a specialised grinder or chopper pump.
Grey DRG Motor and Construction
Zenit developed the Grey Series around matched motor and hydraulic combinations. Consequently, each configuration targets efficient performance around its intended operating point.
The DRG motor casing and standard impeller use GJL-250 cast iron. In addition, the drive shaft uses AISI 431 stainless steel, while protective epoxy coating helps resist external corrosion.
Therefore, the Zenit Grey DRG Dreno Pump provides durable construction for professional drainage and industrial water-transfer duties.
Mechanical Seals and Monitoring
The Grey DRG pump uses two silicon-carbide mechanical seals inside an oil chamber. Consequently, the oil lubricates and cools the seal faces while reducing direct exposure to suspended material.
Moreover, a leakage sensor monitors the seal chamber. Therefore, operators can detect water ingress early and schedule maintenance before significant motor damage develops.
Anti-Clogging Channel Hydraulics
Zenit shapes the DRG hydraulic section to encourage suspended solids to move through the pump. As a result, the channel-impeller design helps reduce fouling around the impeller.
In addition, correct pump sizing maintains suitable flow velocity through the pump and discharge pipe. Consequently, facilities may reduce sediment accumulation and unnecessary cleaning.
Zenit DRG Installation Options
Zenit supports free-standing and permanent installation of the DRG drainage pump. Alternatively, engineers can use compatible vertical or horizontal bottom-coupling systems.
Consequently, technicians can lift the pump from the sump without entering the chamber. Moreover, the guide system helps maintain alignment between the pump and discharge connection.
Zenit DRG Applications in India
The Zenit Grey DRG Dreno Pump may support applications across India such as:
- Industrial water recirculation
- Process-water transfer
- Civil water lifting
- Stormwater drainage
- First-rain collection tanks
- Industrial drainage
- Basement and underpass drainage
- Treatment-plant water transfer
- Rainwater management
- Water containing compatible suspended solids
Moreover, its broad flow range supports both compact drainage stations and larger water-management systems.
However, engineers should review particle size, fibre content, operating temperature and chemical composition before final selection.
Hazardous-Area Configurations
Zenit offers selected Grey Series configurations with ATEX and IECEx certification for specified potentially explosive gas environments.
However, certification varies by model. Therefore, engineers should verify the nameplate, certificate and permitted installation conditions before using the pump in a hazardous area.
Selecting the Correct Zenit DRG Pump
Correct selection depends on:
- Required flow and total head
- Suspended-solids size
- Water composition
- Pipe dimensions
- Sump configuration
- Installation method
- Power supply and frequency
- Motor rating
- Discharge connection
- Hazardous-area requirements
Therefore, engineers should select the Zenit Grey DRG Dreno Pump from model-specific hydraulic data. Otherwise, an unsuitable configuration may reduce efficiency, increase fouling or shorten equipment life.
Product Enquiries in India
The Zenit Grey DRG Dreno Pump is presented through Pumps Bharat for stormwater drainage, industrial water transfer, civil lifting, rainwater management and other professional drainage applications across India.
When submitting an enquiry, please provide the required flow, total head, water composition, suspended-solids size, sump dimensions, power supply and installation arrangement. Consequently, the available DRG configurations can be evaluated against the application requirements.