Davey D120GA submersible sewage grinder pump

Davey

Davey D120GA / D120G Submersible Sewage Grinder Pump – 1.2kW

$3,682.30incl. GST
Float or no Float

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Brand
Davey
Type
Sewage Cutter & Grinder Pumps
SKU
D120GA
Stock
In stock

Fit check

Is it right for my water supply?

A quick check before you buy.

  • Sewage and black water

    Good fit

    Davey grinder pumps suit grey and black water, sump emptying, septic effluent and sewage disposal.

  • Sanitary products

    Good fit

    The grinding ring shreds soft organic solids, sanitary products, thin rubber products and even some textiles to a slurry.

  • Flushable wipes or hard solids

    Not this one

    Don't put flushable wipes or hard solids through these grinder pumps.

  • Small pipes and pressure sewer

    Good fit

    The high heads and small solids suit small discharge pipe systems, especially pumping to pressure sewer mains.

  • Float or manual

    Good fit

    The D120GA has a float switch. The D120G is manual: switch it off by hand, or with an external float or level switch.

  • Seal protection

    Good fit

    Seal sensor leads connect to a protection relay so a seal can be repaired before the motor is damaged.

Specs

Specs

Model
D120GA (float switch) / D120G (manual)
Pump type
Submersible sewage grinder pump, open impeller with shredding and grinding ring
Motor output
1.2 kW P2 (1.6 kW P1)
Range limits
Capacities to 324 lpm, 35 m max total head (grinder datasheet, incl. three phase models to 3.7 kW)
Max submergence
20 m
Max water temperature
40 °C
Suitable fluids
Sewage or grey water of neutral pH with up to 20% soft organic solids
Power supply
220–240 V, 50 Hz, single phase
Full load current
10 A
Speed
2 pole, 2,900 rpm
Power lead
10 m HO7RN-F, bare wire ends
Outlet
1¼" F BSP, hose tail provided
Float
D120GA: float switch. D120G: none, switch off manually or with an external float/level switch
Seal sensor
Seal sensor leads for a protection relay
Protection
Automatic resetting thermal overload, IPX8, Class F insulation
Seals
Double mechanical seal in captive oil bath (silicon carbide/ceramic pump side, carbon/ceramic motor side), sand slinger lip seal
Materials
Cast iron impeller and casing; high chromium steel shredding and grinding rings; 304 stainless steel shaft, motor shell and fasteners
Weight
31 kg
Warranty
2 years

Compare

Compare the Davey cutter and grinder pumps

Figures for each model.

Common questions

D120GA or D120G?

The D120GA has a float switch for automatic operation. The D120G is manual: switch it off by hand, or with an external float or level switch, once water drops to the top of the pump housing.

What can a grinder pump handle?

Davey grinder pumps shred soft organic solids, sanitary products, thin rubber products and even some textiles to a slurry. Don't put flushable wipes or hard solids through them.

Can it pump to a pressure sewer?

The high heads and small solids of its grinder pumps suit small discharge pipe systems, especially pumping waste water to pressure sewer mains.

How much water can it move?

Across the grinder range, capacities go to 324 lpm and 35 m maximum total head, with the three phase models at the top. The performance curve shows the D120GA / D120G figures.

What warranty does it have?

The D120GA and D120G come with a 2-year warranty.

Still not sure?

Tell us about your home and water supply and we'll point you to the right pump.

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Full product details

Read the full description

Davey's sewage grinder pumps have a heavy duty high chromium steel shredding and grinding ring at the inlet, which shreds soft organic solids, sanitary products, thin rubber products and even some textiles to a slurry. The D120GA / D120G suits grey and black water, sump emptying, septic effluent and sewage disposal, and the high heads and small solids suit small discharge pipes and pressure sewer mains. The D120GA has a float switch; the D120G is manual. It has seal sensor leads for connection to a protection relay, so a seal can be repaired before the motor is damaged.

The D120GA / D120G is rated at 1.2 kW output (1.6 kW input) on 220–240 V single phase, 2,900 rpm, with a 1¼" F BSP outlet and a 10 m lead with bare wire ends. Across the grinder range, capacities go to 324 lpm and 35 m maximum total head (including three phase models to 3.7 kW), with 20 m maximum submergence. It handles sewage or grey water of neutral pH with up to 20% soft organic solids, and weighs 31 kg.

It comes with a 2-year warranty. Don't put flushable wipes or hard solids through it.

Need more power? See the Davey D150GA / D150G.

We're NZ owned in Te Rapa, Hamilton. If it's not right, we'll put it right.