Product Description
AL Series Sewage Pumps
AL Series Sewage Pumps provide dependable wastewater, effluent and drainage-water handling for industrial, commercial and infrastructure applications across India. Stanflo builds this compact submersible range with a complete cast-iron structure for stable operation in demanding environments.
Moreover, the pumps combine an Auto-cut motor protector with silicon carbide double mechanical seals and an epoxy-treated cable base. Therefore, the series helps protect key electrical and mechanical components while transferring wastewater, surface water and floodwater. The semi-open impeller also supports efficient liquid movement across a broad operating range.
Reliable Wastewater and Effluent Handling
Industrial and commercial sites often need to move wastewater from collection pits, process areas and drainage systems. Consequently, they require a pump that delivers reliable flow while resisting wear and water entry.
AL Series Sewage Pumps operate directly inside the pumped liquid. As a result, they simplify installations in sumps, drainage pits, wastewater tanks and underground pumping areas.
Furthermore, the high-head design supports applications with elevated discharge points or longer pipelines.
However, engineers should select each model according to required capacity, total head, solids size and electrical supply.
Key Features and Benefits
The AL Series provides:
- Complete cast-iron construction
- Semi-open impeller design
- Auto-cut motor protection
- Silicon carbide double mechanical seals
- Oil chamber for seal lubrication
- Epoxy-treated cable base
- Compact submersible design
- Two-pole electric motor
- Rated capacities up to 60 m³/h
- Rated heads up to 27 metres
- Solids passage up to 21 mm
- Maximum submergence depth up to 30 metres
- Single-phase and three-phase options
- Guide-rail compatibility on selected larger models
Together, these features support dependable wastewater, effluent and high-head drainage duties.
Cast-Iron Construction
Stanflo uses cast iron for the upper cover, casing, impeller and motor frame.
Therefore, the AL Series Sewage Pumps provide mechanical strength and stability during demanding wastewater applications. In addition, the compact construction supports installation in restricted spaces.
Selected 7.5 HP and 10 HP models also use a triangular handle designed for compatible guide-rail installations. Consequently, technicians can simplify pump positioning and removal in permanent wastewater systems.
Auto-Cut Motor Protection
The built-in Auto-cut protector responds if motor temperature rises abnormally.
Consequently, it helps reduce the risk of overheating damage. Moreover, the dry two-pole motor operates at approximately 3,000 RPM on a 50 Hz electrical supply.
The range uses Class B insulation, while selected 5–10 HP models use Class F insulation.
Nevertheless, thermal protection does not replace correct pump sizing, electrical safeguards or proper installation.
Silicon Carbide Double Mechanical Seals
The lower mechanical seal uses abrasion-resistant silicon carbide faces. Meanwhile, the upper seal provides additional separation between the motor and pumped liquid.
Furthermore, an oil chamber supports seal lubrication and cooling. Therefore, the sealing arrangement helps the AL Series Sewage Pumps maintain dependable submerged performance when correctly installed and maintained.
Epoxy-Treated Cable Entry
Stanflo applies epoxy treatment around the cable base to strengthen waterproof protection.
As a result, the cable-entry design helps limit moisture penetration during submerged operation. This additional protection supports reliable performance in wastewater pits and drainage installations.
AL Series Performance Range
Published range data covers models from approximately 2 to 10 HP, with motor outputs from 1.5 to 7.5 kW.
Depending on the selected model, the AL Series provides:
- Discharge sizes: 2 to 4 inches
- Rated capacities: 24 to 60 m³/h
- Rated heads: 8 to 27 metres
- Solids passage: 14 to 21 mm
- Maximum submergence depth: 30 metres
- Liquid temperature: 0°C to 40°C
- Electrical options: Single-phase and three-phase
Therefore, users can select an AL submersible sewage pump for different flow and head requirements.
However, engineers should always use the exact model performance curve because maximum values vary across the range.
AL Series Sewage Pump Applications in India
AL Series Sewage Pumps may support applications across India such as:
- Industrial wastewater drainage
- Commercial effluent transfer
- Surface-water pumping
- Drainage-water removal
- Floodwater management
- Stormwater pumping
- Underground floor drainage
- River and lake water extraction
- Wastewater collection pits
- High-head dewatering systems
Moreover, these cast-iron sewage pumps suit liquids containing low to moderate solids.
However, applications involving fibrous waste, oversized solids or heavy sludge may require a grinder or heavy-duty non-clog pump instead.
Selecting the Correct AL Series Pump
Correct selection depends on:
- Required flow rate
- Total dynamic head
- Maximum solids size
- Discharge diameter
- Installation depth
- Electrical supply
- Liquid temperature
- Operating frequency
- Sump dimensions
- Control requirements
In addition, a complete installation may require a control panel, float switches, guide rails, non-return valve and isolation valve.
Therefore, engineers should select the AL Series Sewage Pumps from model-specific hydraulic and technical data.
Product Enquiries in India
The AL Series Sewage Pumps are presented through Pumps Bharat for industrial wastewater, commercial effluent, floodwater, stormwater, drainage and other submersible pumping applications across India.
When submitting an enquiry, please provide the required flow, total head, solids size, discharge diameter, installation depth, wastewater description and electrical supply. Consequently, the available Stanflo AL Series configurations can be evaluated against the application requirements.