Heavy Duty Submersible Sewage Pumps: The Power Behind Modern Wastewater Management 2025

Multi Torque Industries

Heavy Duty Submersible Sewage Pumps

In demanding industrial and municipal environments, standard pumps just don’t cut it. Heavy duty submersible sewage pumps are designed to handle the dirtiest jobs—literally. Whether you’re dealing with raw sewage, sludge, or industrial wastewater, you need equipment built for high solids, high flow, and high reliability.

At MultiTorque, we supply and service top-tier submersible sewage pumps engineered to withstand the harshest conditions. From mining camps in WA to treatment plants in QLD, we help keep Australia flowing.

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What Are Heavy Duty Submersible Sewage Pumps?

A heavy duty submersible sewage pump is a pump that is fully submerged in the fluid it is designed to handle. Unlike standard above-ground sewage pumps, these are specifically engineered to handle:

  • Raw sewage with high solid content
  • Industrial wastewater
  • Grease and sludge
  • Abrasive or corrosive liquids
  • Continuous-duty applications in harsh environments

They’re often used in wastewater treatment facilities, mining operations, food processing, and commercial facilities where high-capacity, non-clogging performance is essential.


Key Features of Heavy Duty Submersible Sewage Pumps

✅ Solids Handling Capabilities

  • Can handle solids up to 100 mm (or larger)
  • Impeller designs such as vortex or channel-style minimize clogging
  • Ideal for raw sewage and effluent pumping

✅ Corrosion and Abrasion Resistance

  • Cast iron, stainless steel, or duplex alloy construction
  • Ceramic-coated seals and hardened impellers
  • Suitable for chemically aggressive environments

✅ Long Service Life

  • Double mechanical seals with oil chambers
  • Thermal protection and moisture detection built in
  • Designed for continuous, unattended operation

✅ Energy Efficiency

  • Available with high-efficiency motors and variable speed drive (VSD) options
  • Low maintenance requirements = lower total cost of ownership

Where Are Submersible Sewage Pumps Used?

🏗️ Municipal & Government

  • Wastewater treatment plants
  • Sewer pump stations
  • Stormwater overflow control
  • Septic systems

🛠️ Industrial

  • Meat and food processing facilities
  • Chemical and pharmaceutical plants
  • Oil and gas separation pits
  • Heavy manufacturing washdown areas

🛢️ Mining

  • Underground sumps
  • Remote camp effluent systems
  • Tailings containment pits
  • Sludge dewatering

At MultiTorque, we support projects in Perth, Brisbane, and across regional Australia with the right pump for every application.


Choosing the Right Heavy Duty Submersible Pump

When selecting a pump, it’s critical to match the right specs to your site’s requirements. Factors to consider:

FactorWhy It Matters
Flow rate (L/min or m³/h)Ensures the pump can keep up with demand
Head pressure (m)Affects motor power and impeller design
Solid particle sizeDetermines required impeller clearance
Liquid compositionChemicals, pH, temperature affect material choice
Duty cycleContinuous, intermittent, or automatic

We work closely with customers to assess site conditions and recommend the best submersible sewage pump system—no guesswork, just results.


Top Brands We Work With

At MultiTorque, we supply, service, and repair equipment from trusted names in the pump industry, including:

  • Flygt
  • Tsurumi
  • Zenit
  • ABS/Sulzer
  • Lowara
  • Davey Water
  • Ebara

Whether you’re replacing a failed unit or building a new pump station, we can supply the exact model—or a compatible upgrade—ready for Australian conditions.


Pump System Integration & Custom Builds

Sometimes an off-the-shelf pump just won’t cut it. That’s where we shine.

Our team of engineers and fabricators builds custom solutions such as:

  • Skid-mounted submersible pump systems
  • Float switch and control panel integration
  • Stainless steel lifting chains, guide rails, and bases
  • Telemetry and remote monitoring
  • Plug-and-play trailer systems for mobile wastewater handling

If you need a turnkey solution, we can design and deliver it.


Repairs, Rebuilds & Spare Parts

Heavy duty doesn’t mean maintenance-free. These pumps operate in brutal conditions, and timely servicing prevents catastrophic failures.

MultiTorque Provides:

  • Full workshop rebuilds in Perth and Brisbane
  • Mechanical seal and bearing replacements
  • Electrical diagnostics and cable repair
  • Impeller and wear plate machining
  • Site inspections and condition reporting

We stock and source genuine spare parts for most major brands, and we can fabricate custom components if OEM is unavailable.


Why Choose MultiTorque?

You don’t want to waste time and money on underperforming pumps. You need a partner that delivers reliability, performance, and support.

✅ 15+ Years of Industry Experience

We’ve worked on mine sites, municipal treatment plants, and remote stations—across WA, QLD, and beyond.

✅ Custom Engineering Expertise

Need a mobile pumping trailer with remote start? No problem. We design around your needs.

✅ Full Life-Cycle Support

From design and selection to install, service, and rebuild—we’re with you the whole way.


Ready for a Heavy Duty Pump That Handles the Job?

If you need a heavy duty submersible sewage pump that can take a beating and keep pumping—MultiTorque has your back. Talk to our team today and we’ll help spec, supply, and support the right solution.

📞 Call us at 1300 726 525
📧 Email: sales@multitorque.com
🌐 www.multitorque.com.au
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