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Reliable General-Purpose Drainage: The Davey Dewatering Sump Pump (D40M)
Engineered for versatile fluid transfer and rapid site dewatering, the Davey Dewatering Sump Pump (D40M) is a robust, manual-operation submersible pump built to handle clean or slightly dirty water. Featuring a dependable 400W motor and an open-impeller centrifugal layout, it is an ideal all-rounder for clearing rainwater, emptying sumps, and draining flooded environments.
Key Features & Benefits
Open-Impeller Centrifugal Design: Expertly designed to handle small soft solids in suspension (up to 10 mm or 10% small soft organic solids), making it far less susceptible to clogging or blockages in pipework.
Double Mechanical Shaft Seal: Operates in an oil bath featuring a hard-faced silicon carbide/ceramic seal on the pump side, paired with a protective sand-slinger lip seal for extended motor life and superior water-ingress defense.
Corrosion-Resistant Build: Built with a durable 304 stainless steel motor shell, strainer, handle, and fastenersalongside a heavy-duty cast-iron pump body and motor top for long-term rust protection.
Manual Control Operation ("M" Model): Designed for direct plug-and-play manual control, making it perfect for targeted dewatering jobs where an attached automatic float switch isn't required.
Built-In Thermal Overload: Features an automatic-reset thermal cut-out that protects the motor from burning out during heavy loads or accidental over-current situations.
Heavy-Duty Power Lead: Supplied with a 10-metre oil-resistant HO7RN-F power lead and 3-pin plug for flexible positioning and reliable outdoor durability.
Technical Specifications
Motor Output (P1) - 400W (0.4kW)
Electrical Supply - 220–240V, 50Hz, Single Phase (Running Amps: 3.7 A)
Maximum Flow Rate - Up to 240–250 Litres per minute (LPM)
Maximum Total Head - 12 metres
Maximum Submergence Depth - 10 metres
Maximum Water Temperature - Up to 50°C
Discharge Outlet Size - 2” BSP Male / 50mm
Max. Soft Solid Diameter - Up to 10 mm
Materials of Construction - 304 Stainless Steel (Motor Shell, Shaft, Strainer, Handle) & Cast Iron (Pump Body, Motor Top, Impeller)
Versatile Applications
Site & Foundation Dewatering: Rapidly clears water from building footings, trenches, and construction excavations.
Cellar & Garage Flood Recovery: Efficiently pumps out unwanted stormwater or surface water accumulation from low-lying spaces.
Sump & Pit Emptying: Clears drainage collection pits, garden ponds, and ditches.
General Water Transfer: Handles clean or greywater movement across residential, rural, and light commercial properties.
Dependable power when water needs to move fast. Trust Davey engineering to keep your lower-level spaces clear.
Reliable General-Purpose Drainage: The Davey Dewatering Sump Pump (D40M)
Engineered for versatile fluid transfer and rapid site dewatering, the Davey Dewatering Sump Pump (D40M) is a robust, manual-operation submersible pump built to handle clean or slightly dirty water. Featuring a dependable 400W motor and an open-impeller centrifugal layout, it is an ideal all-rounder for clearing rainwater, emptying sumps, and draining flooded environments.
Key Features & Benefits
Open-Impeller Centrifugal Design: Expertly designed to handle small soft solids in suspension (up to 10 mm or 10% small soft organic solids), making it far less susceptible to clogging or blockages in pipework.
Double Mechanical Shaft Seal: Operates in an oil bath featuring a hard-faced silicon carbide/ceramic seal on the pump side, paired with a protective sand-slinger lip seal for extended motor life and superior water-ingress defense.
Corrosion-Resistant Build: Built with a durable 304 stainless steel motor shell, strainer, handle, and fastenersalongside a heavy-duty cast-iron pump body and motor top for long-term rust protection.
Manual Control Operation ("M" Model): Designed for direct plug-and-play manual control, making it perfect for targeted dewatering jobs where an attached automatic float switch isn't required.
Built-In Thermal Overload: Features an automatic-reset thermal cut-out that protects the motor from burning out during heavy loads or accidental over-current situations.
Heavy-Duty Power Lead: Supplied with a 10-metre oil-resistant HO7RN-F power lead and 3-pin plug for flexible positioning and reliable outdoor durability.
Technical Specifications
Motor Output (P1) - 400W (0.4kW)
Electrical Supply - 220–240V, 50Hz, Single Phase (Running Amps: 3.7 A)
Maximum Flow Rate - Up to 240–250 Litres per minute (LPM)
Maximum Total Head - 12 metres
Maximum Submergence Depth - 10 metres
Maximum Water Temperature - Up to 50°C
Discharge Outlet Size - 2” BSP Male / 50mm
Max. Soft Solid Diameter - Up to 10 mm
Materials of Construction - 304 Stainless Steel (Motor Shell, Shaft, Strainer, Handle) & Cast Iron (Pump Body, Motor Top, Impeller)
Versatile Applications
Site & Foundation Dewatering: Rapidly clears water from building footings, trenches, and construction excavations.
Cellar & Garage Flood Recovery: Efficiently pumps out unwanted stormwater or surface water accumulation from low-lying spaces.
Sump & Pit Emptying: Clears drainage collection pits, garden ponds, and ditches.
General Water Transfer: Handles clean or greywater movement across residential, rural, and light commercial properties.
Dependable power when water needs to move fast. Trust Davey engineering to keep your lower-level spaces clear.
