Submersible Nonclog Sewage Pump — WSP Series
Submersible pumps for sewage, dewatering, and effluent handling, designed to pass solids and run continuously while submerged.

The WSP Series Submersible Nonclog Sewage Pump is a robust, portable submersible pump engineered for reliable drainage and sewage handling across a wide spectrum of light to heavy industrial, municipal, and commercial applications. Designed and manufactured under ISO 9001:2015 certified processes, the WSP Series embodies a strong commitment to durability, low maintenance, and dependable performance — even in the most demanding wet conditions.
Available from 1 HP to 20 HP with delivery sizes from 50 mm to 100 mm, the WSP Series covers a comprehensive performance range — from compact single-phase portable units for construction sites and hotel basements, to three-phase heavy-duty models for municipal sewage stations, power plants, fertilizer facilities, and large-scale effluent handling. The nonclog impeller design ensures reliable passage of solids without blockage, while the IP-68 rated motor protection and thermal overload safeguard ensures continuous duty operation even in submerged environments.
Material of construction is carefully selected for durability and corrosion resistance: SS-202 motor body and strainer, CI IS 210FG260 / SS-304 / SS-316 pump casing and impeller, SS-404 shaft, and double-type mechanical seals in SiC vs SiC or TC vs TC configuration. Deep groove SKF ball bearings ensure long service life with minimal maintenance intervention.
The WSP Series runs at 2900 RPM on 50 Hz supply and is available in single-phase (220V, 1.0–2.0 HP) and three-phase (415V, 1.0–20.0 HP) configurations. Optional agitator and cutter models are available on request, as is a float switch for single-phase units. Every WSP pump carries a guarantee of in-house quality validation and traceable manufacturing backed by decades of pumping expertise.
Key features
- Power range: 1 HP to 20 HP covering light portable to heavy-duty industrial duty
- Delivery sizes: 50 mm, 80 mm, and 100 mm for varied flow requirements
- Nonclog impeller design for reliable solids passage without blockage
- IP-68 rated motor protection with thermal overload safeguard for continuous submerged duty
- Motor: Two-pole continuous duty squirrel cage submersible induction motor, Insulation Class F
- Motor body and strainer: SS-202; Shaft: SS-404; Casing and impeller: CI IS 210FG260 / SS-304 / SS-316
- Double mechanical seal: SiC vs SiC / TC vs TC for zero-leakage reliability
- Deep groove SKF ball bearings for extended service life
- Available in single-phase 220V (1.0–2.0 HP) and three-phase 415V (1.0–20.0 HP) configurations
- Optional agitator, cutter model, and float switch available on request
Outcomes
- Portable design enables rapid deployment across multiple sites with minimal setup time
- Nonclog impeller eliminates costly unplanned stoppages from solid-induced blockages
- IP-68 and thermal overload protection ensures uninterrupted operation in fully submerged conditions
- Wide HP range means a single product family covers construction, industrial, and municipal requirements
- ISO 9001:2015 certified manufacturing guarantees consistent quality and traceability
- Low maintenance robust construction reduces total cost of ownership over the pump's service life
- Optional agitator and cutter variants extend suitability to sludge and fibrous media handling
Standards & certifications
- ISO 9001:2015
- IP-68 Motor Protection
Key Specifications
| Specification | Value |
|---|---|
| Max Flow | 3800 LPM |
| Max Head | 50 m |
| Max Temperature | 40 °C |
Applications
Construction Dewatering
Construction site dewatering and pit drainage.
Municipal Sewage
Municipal sewage collection and drainage systems.
Commercial Wastewater
Wastewater handling in hotels and hospitals.
Heavy Industry Dewatering
Power plants, steel, fertilizer, and cement plants.
Effluent Handling
Effluent handling in chemical and process industries.
Flood Dewatering
Rainwater dewatering during floods and high-rainfall events.
Sump & Basement Drainage
Sump and basement drainage in commercial and industrial facilities.
Technical Specifications
| Specification | Value |
|---|---|
| Power Range | 1 HP to 20 HP |
| Delivery Size | 50 mm / 80 mm / 100 mm |
| Max Shut-Off Head | Up to 50 m |
| Max Flow Rate | Up to 3800 LPM |
| Operating Speed | 2900 RPM, 50 Hz |
| Voltage — Single Phase | 220V AC, 1 Phase (1.0–2.0 HP) |
| Voltage — Three Phase | 415V AC, 3 Phase (1.0–20.0 HP) |
| Motor Type | Two-Pole Continuous Duty Squirrel Cage Submersible Induction Motor |
| Insulation Class | Class F |
| Motor Protection | IP-68 / Thermal Overload |
| Cable | PVC Insulated Copper Conductor Flexible |
| Motor Body | SS-202 |
| Pump Casing | CI IS 210FG260 / SS-304 / SS-316 |
| Impeller | CI IS 210FG260 / SS-304 / SS-316 |
| Shaft | SS-404 |
| Strainer | SS-202 |
| Mechanical Seal | Double Type: SiC vs SiC / TC vs TC |
| Bearing | Deep Groove Ball Bearing (SKF) |
Configurations
| Specification | Value |
|---|---|
| Single Phase 220V | Portable, 1.0–2.0 HP |
| Three Phase 415V | 1.0–20.0 HP |
| 50 mm Delivery | 1.0–5.0 HP |
| 80 mm Delivery | 3.0–5.0 HP |
| 100 mm Delivery | 5.0–20.0 HP |
| With Agitator | On request |
| With Cutter | On request |
| With Float Switch | Single Phase only |
Models & Performance (2900 RPM, 50 Hz)
| Spec | Value |
|---|---|
| Duty Points | 400 LPM @ 2m | 350 @ 4m | 300 @ 6m | 240 @ 8m | 145 @ 10m |
| Shut-off Head | 13.5 m |
Frequently Asked Questions
Focus areas
- Pumping Solutions
- Waste Water Treatment