Davey's Sewage Cutter submersible pump
Key features:
- Sump pump type.
- Suitable for sewage
- For applications with soft or stringy solids.
- 12 months warranty for pump, motor, & float switch.co
- Hermetic seal for watertight closure.
Overview of Davey's Sewage Cutter submersible pump
In a world where wastewater management is essential to hygiene, safety, and sustainability, the Sewage Cutter submersible pump by Davey delivers confidence where it matters most. Designed for performance in demanding domestic sewage systems, municipal wastewater networks, and industrial wastewater treatment plants, this robust submersible cutter pump transforms water movement into a smarter, cleaner, and more reliable process.
Whether it is a community sewer system, a residential sump, or a commercial wastewater plant, these heavy-duty sump pumps combine intelligent engineering with practical versatility. Built from high-grade materials, each pump features a cutting-edge mechanism that shreds soft or stringy solids into small fragments, preventing clogging, improving flow, and ensuring uninterrupted operation. This makes the Davey Sewage Cutter submergible pump ideal for managing greywater, blackwater, and factory waste, as well as applications involving organic compounds, oil, grease, or other challenging effluents.
Engineered with decades of Australian pump expertise, Davey’s cutter range integrates efficiency, durability, and ease of maintenance. It is a pump built to tackle the realities of modern wastewater, from human waste and garbage disposal units to biodegradable sediment, soil, and industrial by-products, all while protecting our environment and keeping water systems flowing freely.
Pump variation
Every installation has its own hydraulic and operational demands. That is why the Davey Sewage Cutter pump series offers a diverse range of models, designed to meet the varied needs of domestic, commercial, or municipal applications.
| Model No. | Motor Output, kW | Rail Kit | Voltage | Outlet |
| D75KM | 0.75 | SR50 | 220/240 | 2′′ |
| D75KA | 0.75 | SR50 | 220/240 | 2′′ |
| DT08K | 0.75 | SR50 | 415 | 2′′ |
| DT15K | 1.50 | SR80 | 415 | 3′′ |
| DT22K | 2.20 | SR80 | 415 | 3′′ |
| DT37K | 3.70 | SR80 | 415 | 4′′ |
| DT55K | 5.50 | SR100 | 415 | 4′′ |
| DT75K | 7.50 | SR100 | 415 | 4′′ |
The compact D75KA model, equipped with an automatic float switch, provides convenient, unattended control for small-scale sump or sewage installations. Its 0.75 kW motor makes it ideal for household wastewater, residential plumbing, or light greywater transfer.
For more intensive tasks, the DT series includes three-phase models, offering motor outputs up to 7.5 kW. These high-performance units are engineered for municipal sewer networks, industrial wastewater treatment, and agricultural applications requiring high flow and continuous duty.
Each model supports installation flexibility, whether free-standing or mounted on slide rails, ensuring effortless servicing and maintenance in underground pits, wet wells, or drainage systems. Designed for both temporary and permanent installations, they can also be coupled with lay-flat hoses using the supplied hose tail, making them a dependable solution across residential, commercial, and industrial wastewater environments.
Method of sump pump identification
Davey’s structured model naming simplifies product selection, helping users, installers, and consultants quickly identify each unit’s configuration and capability.
- The prefix “D” or “DT” – Indicates the Davey submersible sump pump family. “D” represents single phase, while “DT” designates three-phase models.
- The following numbers – Represent the motor output power in kilowatts.
- The inclusion of “K” – Signifies a cutter pump configuration, equipped with a hardened cutting mechanism for dealing with stringy solids, biological waste, and organic debris commonly found in blackwater and greywater systems.
- The suffix “A” or “M” – “A” designates an automatic model fitted with a float switch for water level sensing, while “M” requires manual control or integration into an automated system.
For instance, model D75KA is a 0.75 kW single-phase sewage cutter pump with an automatic float switch, perfect for residential wastewater or septic effluent disposal.
Attachments
HO7RN-F oil-resistant power cable
Each Davey submersible cutter pump is equipped with a 10-metre HO7RN-F oil-resistant power cable, designed for dependable electrical performance in harsh conditions.
Resistant to oil, grease, wastewater, and chemical exposure, this flexible lead ensures safe and stable power delivery even when submerged.
Its generous length offers installation freedom, while its high insulation integrity reduces the risk of electrical faults, ensuring consistent performance and compliance with international safety standards in every application.
Stable mounting and slide rail kit
Installation and maintenance are effortless with Davey’s stable mounting base and optional slide rail kits (SR50, SR80, SR100).
The robust base ensures steady operation during high-pressure pumping, while the slide rail system allows for quick removal and reinstallation, perfect for underground sumps, sewage pits, or industrial wastewater tanks.
Automatic float switch
The FS750-10 submersible float switch provides automatic water level control for effortless operation.
Ideal for sump or sewage systems, this smart accessory prevents dry running, conserves energy, and extends pump life.
Its HO7RN-F rubberised lead withstands exposure to sewage, greywater, and chlorinated water, ensuring reliable function in demanding environments.
Sewage Cutter submergible pump's certifications
Every Davey Sewage Cutter pump is engineered and manufactured to meet strict international standards for safety, quality, and environmental performance. Built to withstand demanding sewage, drainage, and industrial wastewater conditions, each unit undergoes rigorous testing and certification to ensure long-term reliability, electrical safety, and compliance with global regulations. The following certifications and approvals apply to this product range:
European Conformity (CE): Demonstrates full compliance with the European Union’s directives for electrical safety, health, and environmental protection. This certification confirms that every Davey Sewage Cutter pump has been independently tested for safe electrical performance, robust construction, and adherence to environmental standards.
Electromagnetic Compatibility (EMC) Compliance: Demonstrates conformity with the Australian Communications and Media Authority (ACMA). This certification ensures that the pump neither causes nor is affected by electromagnetic interference, maintaining stable and safe operation alongside other electrical and control equipment in complex wastewater installations.
Geprüfte Sicherheit, GS (TÜV022849EA): Certifies that Davey Sewage Cutter pumps have passed independent testing conducted by TÜV under the German Product Safety Law (ProdSG). The GS mark confirms verified mechanical and electrical safety, providing confidence in the pump’s reliability and durability when used in domestic sewage, municipal wastewater, and industrial effluent systems.
Standards Australia: Confirms that the Davey Sewage Cutter pump meets national benchmarks for product safety, performance, and material integrity established by Standards Australia.
- AS4020 Sub-Clause: Tested in accordance with AS4020 to confirm suitability for contact with potable water. This ensures that no harmful substances leach from the pump’s materials, maintaining water purity and compliance with Australian health and safety regulations.
New Zealand Standards: Demonstrates adherence to New Zealand’s regulatory framework for electrical and water-handling products, ensuring safe and reliable performance across both domestic and commercial wastewater applications.
- NZS4020 Sub-Clause: Equivalent to Australia’s AS4020, this standard verifies that all materials in the Davey Sewage Cutter submersible pump are safe for contact with potable water. It reinforces the product’s environmental responsibility and health-safety compliance with New Zealand’s water management systems.
Thermal overload and motor protection
Reliability meets intelligence with the built-in automatic resetting thermal overload system.
This feature protects the motor from overheating, power surges, and excessive load, automatically restoring operation once safe conditions return.
In unpredictable sewage or industrial wastewater applications where flow rates can vary, this protection prevents damage from dry running or blockages, ensuring dependable performance and extended motor life.
Sump pump selection guide
Choosing the right pump starts with understanding your water type.
This selection guide helps match each Davey pump to specific applications, from clean rainwater to heavy sludge. For sewage and wastewater containing stringy or fibrous materials, the Davey cutter pump (K models) offers superior performance.
Its high-torque cutting mechanism shreds solids efficiently, preventing blockages and ensuring continuous and reliable flow in domestic, commercial, and municipal systems.
| Suitable Fluid | Rainwater | Drainage | Dirty Water / Greywater | Wastewater / Effluent / Sewage | Sludge / Slurries | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pumps | D23A/B, D42A/B & D53A/B | Small Double Case Submersible Water Pump Models (DC10) | Small Dewatering Pump Models (D10 & D15) | Double Case Models (DCS40 & Above) | Dewatering Pump Models (D25 & Larger) | Single Channel Models (S) | Vortex Models (V) | Cutter Models (K) | Grinder Models (G) | Sludge & Slurry Models (KZN) |
| Fluids / Application | ||||||||||
| Fountains | X | ✔ | — | |||||||
| Rainwater (e.g. tank to garden or home) | ✔ | — | ✔ | — | ||||||
| Stormwater and surface run off water | ✔ | X | ✔ | |||||||
| Greywater with nil or few soft solids (e.g. septic tank pump-outs) | ✔ | X | ✔ | |||||||
| Dirty water with less than 1% small hand solids – some wear can be expected (e.g. site dewatering, swimming pool drainage, stormwater pumping) | ✔ | X | ✔ | X | ✔ | |||||
| Water with up to 10% soft solids in suspension – max. particle size is 80% of pump outlet (e.g. semi screened raw sewage, stock effluent, grease traps) | X | ✔ | ||||||||
| Water with medium volumes of hair in suspension (e.g. greywater, abattoir wash down, dog washing, animal washing) | X | ✔ | X | |||||||
| Water with stringy materials in suspension (e.g. laundromats, cotton & wool mills, food factories) | X | ✔ | X | |||||||
| Raw sewage including sanitary products | X | ✔ | X | |||||||
| Slurries with up to 35mm particles in suspension up to 70% by weight (e.g. sand and slurries, building site water, mine site water) | X | ✔ | ||||||||
304 stainless steel motor shell and shaft
Durability begins with construction. Each Davey submersible cutter pump is engineered with a 304 stainless steel motor shell, shaft, and fasteners to deliver exceptional resistance to corrosion, moisture, and chemical exposure.
This ensures long-lasting performance in greywater, sewage, and industrial wastewater environments.
The stainless-steel shaft maintains alignment under continuous operation, minimising wear on seals and bearings.
Whether submerged in municipal sewer pits or factory wastewater tanks, the motor’s protective housing guarantees consistent cooling, low maintenance, and unmatched strength, while maintaining peak performance even when exposed to organic compounds, bacteria, and oily sediments during long-term operation.
Cast iron pump housing and impeller
At the heart of every Davey Sewage Cutter pump lies a cast iron impeller fitted with a tungsten carbide cutting tip and hardened diffuser plate.
This heavy-duty assembly slices through stringy solids, hair, and organic waste before discharging them efficiently. Its centrifugal design maintains high pressure while preventing clogging, making it ideal for domestic sewage, municipal wastewater, and industrial effluent.
The robust cast iron housing absorbs vibration, resists abrasion, and extends the pump’s life even when handling greywater, blackwater, or oil-contaminated sludge.
Built for reliability, this cutting mechanism keeps systems flowing freely in demanding conditions.
Oil-bathed double mechanical seals
Engineered for endurance, the double mechanical shaft seal safeguards the motor against water ingress and contaminants.
Housed within a protective oil bath, the silicon carbide and ceramic seal faces provide superior resistance to abrasion, chemical attack, and thermal stress.
This design isolates the motor from sewage, greywater, or industrial slurries, ensuring the pump runs smoothly even when handling fine sediment, organic matter, or grease-laden wastewater.
The additional sand slinger lip seal prevents grit from damaging internal components, extending the lifespan of critical moving parts, and maintaining consistent performance under continuous heavy-duty operation.
Included In The Box
Sewage Cutter Submersible Pump
User Manual
Proof of Purchase
12 Months of Manufacturer Warranty
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