Davey DT22K Cutter/Shredder Pump 415v


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Product Documents

Davey DT22K 3Φ 415V Automatic Single Channel Sewage Pump with Cutting Impeller

Single channel, sewage handling submersible sump pumps with a cutting impeller, capable of pumping semi-screened or grey water of neutral pH. Primarily used for sewage water pumping, the Davey Cutter pumps can also be used for sump emptying, septic effluent disposal, water transfer, pumping light slurries and factory waste, or pumping wastewater with stringy or long soft solids in suspension. Ideal for sewage water pumping, sump emptying, septic effluent disposal, water transfer, pumping of light slurries and factory waste and pumping wastewater with stringy or long soft solids in  suspension.

Corrosion resistant 304SS grade shaft, motor shell and fasteners mean a long service life, and an open impeller and single channel centrifugal design with a cutting leading edge means it is less susceptible to blockage and capable of higher heads and pressure. The ability to cut string like materials and pump soft solids in suspension reduces the risk of blockages in pipework or the pump itself.

A double mechanical shaft seal in oil bath with hard faced silicon carbide/ceramic seal on pump side/sand slinger lip seal provides added motor protection.

Davey recommends utilising slide rail kits with Cutter pumps, for easy removal and re-installation. There is a choice of either single or three phase motors. This product is not suitable for sanitary or flushable wipe products, please consider the Grinder models for this application.

Power: 2200W
Max. flow: 1400T/min
Head: 21m
Outlet: 3″F / 75mm
Maximum sumbergance: 20m
Maximum Operation Temperature: 40ºC
Maximum soft solid diameter: up to 80% of discharge size
Warranty on pump: 1 Year

Materials of Construction
Cast Iron
Cutting tip: Tungsten Carbide
Diffuser Top: Hardened case iron
Pump casing: Cast Iron
Outlet: Cast Iron
Shaft seal pump side: Silicon carbide / Ceramic
Shaft seal motor side: Carbon / Ceramic (mechanical seal in captive oil bath with oil seal)
Shaft seal elastomer:
Nitrile rubber
Pump shaft:
304 Stainless Steel
O ring:
Nitrile rubber
Motor shell:
304 stainless steel
304 stainless steel + NBR
304 stainless steel

Suitable Fluids: Semi-screened sewage or “grey water” of neutral pH containing up to 20% small soft solids or 1% string like solids. Some wear should be expected while pumping hard solids in suspension.

Electrical Data
Supply Voltage:
Output: 2200W
Locked rotor current: 31.5 A
Running Amps: 4.5A

• Sump emptying
• Sewerage water pumping
• Water transfer
• Pumping waste water with stringy or long soft solids in suspension
• Septic effluent disposal
• Factory waste

Installation & Priming

Use a rope to position and retrieve the pump. Do not lower or retrieve the pump using the power lead as this may damage the cable entry seals, causing water leaks and unsafe operation. Don’t use this product for recirculating or filtering swimming pools, spas, etc. While these pumps are built to high safety standards, they are not approved for installations where people will be in the water while they are operating. Don’t pump abrasive materials. Sand and grit in the water being pumped will accelerate wear, causing shortened pump life. Keep your pump clean, particularly in situations where lint, hair or fibrous materials may get bound around the pump shaft. Regular inspection and cleaning will extend pump life. Make room for the float switch to operate.  automatic models have a float switch to turn them on when the water level rises and turn them off again when it has been pumped down to the safe operating level of the pump. If the float switch is not free to rise and fall, correct pump operation may not be possible. Don’t run your pump dry



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