Product Description
AS Series Drainage Pumps
AS Series Drainage Pumps provide reliable dewatering for civil engineering, construction and general drainage applications across India. Stanflo designed this lightweight submersible pump range for contractors who need durable equipment that they can move easily between work areas.
Moreover, these civil engineering drainage pumps combine a water-cooled motor with an efficient, abrasion-resistant impeller. Therefore, they support dependable operation in excavations, tunnels, foundations and other demanding drainage environments.
The stainless-steel outer cover also protects the pump during site use. As a result, the AS Series provides a practical solution for temporary and continuous construction dewatering.
Reliable Civil Engineering Dewatering
Construction sites often collect groundwater, rainwater and drainage water inside pits and excavations. Consequently, contractors need portable pumps that can remove water efficiently as site conditions change.
AS Series Drainage Pumps use a compact and lightweight design. Therefore, workers can transport, install and reposition them more easily than many heavier conventional pumps.
Furthermore, the range can support temporary and continuous drainage duties when users select the correct model. However, engineers should confirm the required flow, discharge head, sediment concentration and electrical supply before installation.
Key Features and Benefits
The AS Series provides:
- Lightweight submersible construction
- Water-cooled motor design
- Stainless-steel outer cover
- High-efficiency impeller
- Abrasion-resistant hydraulic components
- Double mechanical seals
- Additional oil seal
- Automatic-reset thermal protection
- Low-water-level operating capability
- H, N and L impeller configurations
- Portable design for contractor use
- Suitable for construction dewatering
Together, these features support dependable operation in demanding civil engineering and drainage applications.
Water-Cooled Motor Design
The double outer casing directs pumped water around the motor housing. As a result, the liquid helps control motor temperature during submerged operation.
Moreover, this cooling arrangement allows AS Series Drainage Pumps to continue operating at relatively low water levels. Therefore, they suit the final stages of draining excavations, tunnels and construction pits.
However, operators should always maintain the minimum operating water level specified for the selected model.
Lightweight and Durable Construction
Stanflo combines compact dimensions with a durable stainless-steel outer cover.
Consequently, the pump offers portability together with added protection in demanding site conditions. Contractors can move the pump between different locations as water levels and drainage requirements change.
In addition, the outer cover helps protect important internal components from corrosion, impact and general site exposure.
High-Efficiency Impeller
The high-efficiency impeller supports effective water movement while limiting unnecessary energy use.
Therefore, the AS Series Drainage Pumps can provide dependable performance across varying construction dewatering conditions.
In addition, the abrasion-resistant impeller handles water containing permitted fine sediment and suspended particles. However, users should prevent large stones, metal objects and oversized construction debris from entering the pump.
Double Mechanical Seal Protection
The pump uses double mechanical seals to help protect the motor from water entry. Furthermore, an additional oil seal strengthens the sealing arrangement.
Consequently, the seal system supports reliable submerged operation and helps protect internal components.
Regular inspection and maintenance also help preserve sealing performance over extended service periods.
Thermal Motor Protection
An automatic-reset thermal protector helps monitor motor temperature.
If the motor becomes excessively hot, the protection system interrupts operation. As a result, this feature can reduce the risk of overheating damage.
Nevertheless, thermal protection does not replace correct pump sizing, suitable electrical protection or proper installation.
Available Impeller Configurations
Stanflo offers different AS Series impeller configurations for varying performance requirements:
- H configuration – higher head and lower capacity
- N configuration – normal head and normal capacity
- L configuration – lower head and higher capacity
Therefore, contractors can choose an AS drainage pump that matches the required flow and discharge head.
For example, deeper excavations may require a higher-head configuration. Meanwhile, shallow dewatering applications may benefit from a higher-capacity option.
AS Series Drainage Pump Applications in India
AS Series Drainage Pumps may support applications across India such as:
- Civil engineering dewatering
- Tunnel construction and maintenance
- Foundation drainage
- Construction pit dewatering
- Stormwater removal
- Drainage after heavy rainfall
- Sediment-bearing water removal
- Temporary contractor pumping
- Industrial maintenance drainage
- General construction-site dewatering
Moreover, their portable construction suits projects where drainage points change frequently.
Suitable Pumped Liquids
The AS Series handles drainage water containing permitted fine sediment and suspended particles.
However, the pumps do not suit untreated sewage, fibrous waste, aggressive chemicals or heavy slurry. Likewise, users should keep large debris away from the inlet.
Correct liquid assessment helps protect the impeller, seals and hydraulic components. Consequently, it can reduce maintenance requirements and improve operating reliability.
Selecting the Correct AS Series Drainage Pump
Correct selection depends on:
- Required flow rate
- Total dynamic head
- Sediment concentration
- Maximum particle size
- Installation depth
- Minimum operating water level
- Discharge-pipe diameter
- Electrical supply
- Required impeller configuration
- Continuous or intermittent duty
In addition, the installation may require discharge hoses, non-return valves, control panels and lifting equipment.
Therefore, engineers should select AS Series Drainage Pumps from model-specific hydraulic and technical data.
Product Enquiries in India
The AS Series Drainage Pumps are presented through Pumps Bharat for civil engineering, construction, tunnel drainage, foundation dewatering, stormwater removal and other site-drainage applications across India.
When submitting an enquiry, please provide the required flow, total head, sediment conditions, installation depth, preferred impeller configuration and electrical supply. Consequently, the available Stanflo AS Series models can be evaluated against the application requirements.




















