Submersible Sewage Pump — Anti-clogging submersible pump engineered for complex sewage conditions.
Resolves fiber entanglement, mechanical seal leakage, and high-risk underwater maintenance, enabling zero-clogging operation, pit-free servicing, and long-term reliability.
Ideal for municipal drainage, industrial wastewater, building basement sewage, and agricultural irrigation, handling ≤50% solids content, long-fiber media, and 20m submersion depth.
Extended Service Life: Oil-chamber long-life mechanical seals + wear-resistant alloy wetted parts resist dry-grinding & corrosion. Design lifespan ≥12 years—over 40% longer than standard single-seal sewage pumps.
Significant Energy Savings: Dual-blade hydraulic model + intelligent liquid level control achieve ≥74% efficiency at rated duty, avoiding idle running waste. Annual electricity costs drop by 20%–30%.
Lower Maintenance Costs: Auto-coupling rail system + external seal design enables pump lifting & seal replacement without entering sewage pit. One technician completes maintenance within 45 minutes, reducing labor costs by 55%.
Lightweight & Compact Design: Integrated streamlined structure eliminates pump house & heavy baseplate. Overall weight reduced by ~18% for equivalent flow ratings, lowering civil construction costs & lifting complexity.
Faster Installation: Pre-installed coupling base + quick-connect hose interfaces support fixed/mobile/outdoor direct-install three modes. Standard units reach commissioning readiness within 2 hours from positioning, compressing installation cycle by 45%.
Municipal Drainage: Wastewater treatment plants, rainwater pumping stations, street drainage networks, strong anti-clogging performance ensuring flood drainage efficiency during rainy seasons.
Industrial Wastewater: Chemical plants/dyeing factories/mining slurry transport, corrosion/wear resistant, adapting to high-impurity harsh conditions.
Building Sewage: Underground basement/subway stations/civil air defense sewage discharge, submersible low-noise operation, saving building space.
Agricultural Water Conservancy: Farmland flood drainage, biogas digester mixing, aquaculture sewage discharge, flexible mobile deployment, low maintenance costs.
Media Compatibility: Sewage/slurry/fiber-containing liquids. Solid content ≤5% (vol), particle size ≤50% of outlet diameter, submersion depth ≤20 m.
Media: Sewage/slurry/fiber liquids | Solids ≤5% vol, size ≤50% outlet | pH 4–10 (cast iron)
Temp: Media 0–40°C (32–104°F, high-temp optional) | Ambient ≤40°C (≤104°F)
System: Submersion depth ≤20m (≤66 ft) |
Install: Fixed coupling/mobile hose/level control
Electrical: Power 3-phase 380V/50Hz (customizable) |
Protection: IP68 (fully submersible) / Optional IP54 outdoor |
Insulation: Class F/H optional
Note: Special conditions (high temp/corrosion/high particles/high altitude)? Consult before selection. Custom solutions available.
Product Structure Diagram
 | |||
| 1 | Electric Motor | 12 | Oil Chamber |
| 2 | Coupling | 13 | Oil Seal |
| 3 | Connection Cover | 14 | Pump Cover |
| 4 | Bearing Cover | 15 | Impeller Nut |
| 5 | Mounting Plate | 16 | Impeller |
| 6 | Bearing Housing | 17 | Discharge Elbow |
| 7 | Bearing | 18 | Pump Casing |
| 8 | Shaft Extension | 19 | Wear Ring |
| 9 | Support Tube | 20 | Baseplate |
| 10 | Bearing | 21 | Discharge Pipe |
| 11 | Mechanical Seal | / | / |
National Standard Compliance: Strictly manufactured per GB/T 24674-2009 “Submersible sewage pumps” & JB/T 5118-2010. Hydraulic performance & mechanical safety 100% compliant. Third-party full performance curve test reports available.
Motor Protection Certification: Standard IP68 rated motors comply with IEC 60034 rotating electrical machines standards, suitable for long-term submersion/high-humidity/dusty industrial environments. Optional IP54 outdoor protection type available.
International Quality System: ISO 9001:2015 certified. Core pressure-bearing components evaluated per CE/PED 2014/68/EU, meeting EU/US market entry requirements.
Factory Inspection Standard: Every unit undergoes 1.5× rated pressure hydrostatic test (5-min hold) + G6.3 dynamic balance calibration + passage capacity test (fibers/particles pass smoothly), guaranteeing zero-leakage, zero-clogging delivery.
Fast Standard Delivery: Covers flow 10–500 m³/h, head 5–60 m. Standard cast iron + oil-chamber long-life seals + IP68 motors. Technical confirmation & sample prototyping within 72 hours.
Deep Customization Capabilities:
Material Upgrade: Wetted parts optional in 304/316 stainless steel or wear-resistant alloy for high-chloride/mild acid-alkali/high-abrasion industrial wastewater.
Seals & Motors: Optional high-temp mechanical seals (up to 70℃ intermittent), explosion-proof motors (Ex d IIB T4), IE4 ultra-efficiency or VFD-dedicated drives.
Structural Adaptation: Supports rail coupling/mobile hose/liquid level control three installation modes, flange standard switching (GB/ANSI/DIN), outdoor rain/soundproof canopy customization.
Intelligent Expansion: Pre-wired interfaces for level/temperature/leakage sensors; supports integration with auto control cabinets, IoT remote monitoring, multi-pump rotation modules.
Please contact us for customization inquiries. Our engineering team delivers process proposals within 48 hours.
Installation Key Points:
1.Mount pump vertically on coupling base. Ensure rail parallelism ≤2 mm/m for natural seal mating during pump descent, preventing misalignment leakage.
2.Connect inlet/outlet with flexible rubber joints or quick-connect hoses. Rigid pipe direct connection is prohibited. Provide independent supports for inlet/outlet piping.
3.Route float switch cable along rails, avoid interference with moving parts. Separate signal cables from control cables to prevent EMI.
4.Before initial startup, manually rotate impeller to confirm no binding. Jog test to verify rotation (clockwise from motor end). Confirm insulation resistance ≥50 MΩ before operation.
Commissioning Process: Prime & vent → Jog test for direction → No-load run 5 min → Slowly open discharge valve to rated duty → Record current/pressure/vibration/temp rise → Acceptance.
Request the “Submersible Sewage Pump Installation & Maintenance Manual” (PDF/English version) for complete dimensional drawings, coupling installation diagrams, and commissioning logs.
Q1: How does dual-blade impeller enable solids ≤50% of outlet diameter to pass smoothly?
Dual-channel design expands minimum flow area + optimized blade outlet angle. Combined with non-clogging hydraulic model, tested Φ100mm solids/300mm fibers pass smoothly, eliminating entanglement/clogging.
Q2: How does oil-chamber long-life sealing prevent dry-grinding & extend lifespan?
Dual mechanical seals operate oil-immersed + WC/SiC mating faces precision ≤0.001 mm. Tested: ≥8,000h continuous operation with zero leakage, extending lifespan 3× vs. dry-running seals.
Q3: How does rail coupling system enable “maintenance without entering sewage pit”?
Pump body auto-aligns and seals with base via rails. For maintenance, simply lift pump to ground level—no personnel entry into sewage pit required. One technician completes seal/impeller replacement within 45 minutes.
Q4: How does intelligent liquid level control prevent motor overload?
Float switch sets start/stop level difference ≥200 mm. Combined with control cabinet overload protection, auto-shutdown when water level drops below set point, preventing dry-run motor burnout.
Q5: What protections are needed for outdoor pump-house-free deployment?
Standard IP68 submersible protection. Optional IP54 outdoor motor + rain-proof canopy + lightning protection grounding module, suitable for open-air installation, saving 30%+ civil construction & pump house costs.
