Davey's Residential High Head drainage pump
Key features:
- Sump pump type.
- Suitable for residential area.
- For a broad range of drainage applications.
- Can be combined with Torrium2 controller for rainwater recycling usage.
- 12 months warranty for pump, motor & float switch.
- Hermetic seal for watertight closure.
Davey's Residential High Head drainage pump overview
In every home, managing water efficiently is not just about convenience; it is about protection and peace of mind. Whether facing a rising water table beneath the foundation, excess stormwater after heavy rain, or a persistent sump pit overflow, the Residential High Head drainage pump by Davey series ensures water is managed intelligently and reliably.
Engineered for low flow, high head drainage applications, these submersible pumps deliver outstanding pressure and efficiency, even where water must be lifted over significant vertical distances. They form the backbone of many residential rainwater recycling systems, ensuring that collected water is effectively reused for lawn irrigation, yard drainage, or even in cooling tower and sanitary sewer discharge systems.
This series embodies Davey’s philosophy of making water work smarter. Built with corrosion-resistant materials, multi-stage impellers, and hermetic seals, they combine professional-grade durability with everyday usability. Their silent, dependable operation makes them ideal for basements, storm drains, and drainage systems around the home, protecting your property from poor drainage, flooding, and unwanted moisture intrusion.
Drainage pump models
Every drainage installation is unique. Some homes require compact sump pumps for foundation drainage, while others need higher capacity solutions for stormwater or wastewater pump duties. The Davey residential high head drainage series offers several models tailored to these differing needs.
| Model No. | Motor output, kW | Stages | Voltage | Outlet | Product Group |
| D23A/B | 0.20 | 1 | 220/240 | 1″ | 1051 |
| D42A/B | 0.60 | 2 | 220/240 | 1″ | |
| D53A/B | 0.84 | 3 | 220/240 | 1″ | |
| 20m lead options | |||||
| D42A/B20 | 0.60 | 2 | 220/240 | 1″ | 1205 |
| D53A/B20 | 0.84 | 3 | |||
The D23A/B is ideal for low-flow applications such as small sump pits or storm drain sewer lines, providing dependable drainage for basements or yards.
For taller homes or systems requiring higher hydraulic head, the D42A/B and D53A/B offer extended reach and increased pressure, making them suitable for rainwater recycling, foundation drainage, and stormwater transfer to elevated storage tanks.
All models are centrifugal multi-stage submersible pumps that run quietly, efficiently, and safely in both residential and light commercial properties.
Method of pump identification
Selecting the correct model is straightforward once you understand the naming logic behind Davey’s residential high head drainage series.
Each model code provides clear insight into the pump’s configuration and capabilities.
- Prefix “D”: Identifies the Davey drainage and sump pump series, designed for low flow, high head applications.
- Number 23/42/53: Indicates the model’s relative performance level and hydraulic capacity.
- Suffix A/B: Identifies the complete configuration within the model range.
The D53A/B embodies the top tier of the residential high head drainage pump series. The “D” confirms it is part of Davey’s drainage category, while “53” identifies a three-impeller centrifugal submersible pump capable of delivering up to 130 litres per minute at a maximum head of 45 metres. The “A/B” suffix indicates it is a complete, fully configured model within the range, equipped for residential stormwater, rainwater recycling, or basement drainage applications.
Attachments
H07RN-F oil-resistant power lead
Each pump includes a 10-metre H07RN-F oil-resistant power lead designed for continuous immersion in damp environments.
Its reinforced insulation resists oil, abrasion, and moisture, maintaining electrical safety in sump pits, stormwater, or wastewater pump setups. The length enables flexible installation without compromising the hermetic seal at the motor entry. Rated for heavy-duty performance, the cable ensures uninterrupted power supply and compliance with residential plumbing code and safety standards.
This robust power cord reduces downtime, minimises maintenance, and guarantees dependable electrical connection in all submersible pump installations, supporting consistent performance and long-term operational confidence.
Certifications
Certifications ensure the Davey sump pump meets strict safety, quality, and performance standards. They verify that the pump is manufactured with approved materials, operates safely under electrical and environmental conditions, and complies with local and international regulations.
EMC Compliance: It shows compliance with Electromagnetic Compatibility (EMC) standards regulated by Australian Communications and Media Authority (ACMA). It ensures the pump does not cause or suffer from electromagnetic interference, allowing safe operation near other electrical equipment.
European Conformity: Certifies that the pump complies with European Union directives for electrical safety, health, and environmental protection.
Geprüfte Sicherheit: The GS mark, meaning “tested safety” confirms that the pump has passed independent testing under German Product Safety Act (ProdSG). It guarantees compliance with high European safety standards, validating that the pump’s electrical and mechanical designs ensure dependable, long-term operation with proven safety assurance for consumers.
Standards Australia: Develops national standards to ensure product safety and quality.
- AS4020 Sub-Clause: Tested according to AS/NZS4020 to confirm suitability for contact with drinking water. It ensures no harmful substances leach from the pump’s materials, maintaining water safety and compliance with Australian health regulations.
New Zealand Standards: Governs product compliance within the country’s regulatory framework.
- NZS4020 Sub-Clause: Equivalent to Australia’s AS4020, this standard ensures the pump’s materials are safe for potable water contact. It validates environmental and health safety, ensuring the pump’s reliability in New Zealand’s domestic and commercial water systems.
Submersible single-phase electric motor for power
At the heart of every Davey residential high head drainage pump lies a precision-engineered submersible single-phase electric motor. Designed for quiet and dependable operation, it powers the centrifugal impeller system that drives consistent water movement under varying hydraulic head conditions. The motor’s totally enclosed construction prevents water ingress through a hermetic seal, allowing full immersion in sump pits, storm drains, and rainwater tanks.
Thermal overload protection is built in to automatically shut down the motor in the event of overheating or voltage irregularities, safeguarding both user and system. With its corrosion-resistant 304 stainless steel housing and precision-balanced rotor assembly, the Davey submersible motor delivers long-term reliability and consistent performance for demanding drainage systems, sump pump, and rainwater recycling applications.
Sump pump selection guide
The Davey sump pump selection guide assists in choosing the correct pump based on fluid type and application. Models D23A/B, D42A/B, and D53A/B are best suited for rainwater, stormwater, and light grey water handling in residential systems. They deliver reliable performance for clean to slightly dirty water applications such as garden irrigation, yard drainage, or rainwater reuse, but are not recommended for wastewater, effluent sewage, or slurry plumbing.
| 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 | ✔ | ||||||||
Stainless steel and thermoplastic construction
Every Davey submersible pump is engineered for endurance, combining 304 and 316 stainless steels with engineered thermoplastics for outstanding corrosion resistance and structural integrity. The stainless-steel shaft, fasteners, and motor shell prevent rust and wear in stormwater or wastewater pump environments, while the glass-filled polycarbonate casing ensures impact strength and heat stability.
This material pairing delivers long service life in harsh drainage systems, sump pits, and basement waterproofing installations. Even when exposed to fluctuating water levels or slightly contaminated fluids, the durable construction safeguards performance and efficiency, ensuring reliable low flow, high head operation year after year.
Multi-stage impellers
The pump’s performance relies on its centrifugal multi-stage impeller system, available in both two- and three-impeller configurations depending on the model. Constructed from reinforced polycarbonate, these impellers are engineered to withstand continuous operation in stormwater, wastewater, or sump pit environments where low flow and high head are critical. Each impeller stage progressively increases pressure, producing a smooth, energy-efficient discharge up to 45 metres in the D53A/B model. This closed vane design prevents internal leakage and maintains hydraulic integrity, while the long engagement “D” drive ensures mechanical stability during operation.
This configuration allows the pump to deliver high performance without compromising on energy efficiency, making it ideal for drainage problems in basements, yards, or foundation areas.
Double mechanical seal system for dual layer protection
To guarantee watertight reliability, each residential high head drainage pump features a double mechanical seal system, where one seal is housed in an oil bath on the motor side and a second seal protects the pump section. These carbon, ceramic, and silicon carbide faces resist abrasion, temperature, and pressure, ensuring complete isolation of electrical components from wastewater or storm drain fluids. The oil bath maintains lubrication, reducing friction and extending seal life under constant submersion.
This robust sealing configuration prevents leaks, safeguards the hermetic motor seal, and upholds safety across sump pump and drainage system applications where long-term reliability is critical.
Included In The Box
Residential High Head Drainage Pump
User Manual
Proof of Purchase
12 Months of Manufacturer Warranty
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