GF Series
Grinder pumps
Grinder pumps for pressure sewage systems. A hardened cutter grinds solid matter before it enters the pump casing.
Models and specifications
Select a model to see its data. We will confirm suitability against your required flow, head and site conditions.
14 models · Voltage options update with your selection.
32GF21.0
Maximum head and maximum flow are separate limits; they are not reached at the same time. Use the performance curve in the catalogue to confirm your duty point.
Where two weights are given, they are single phase / three phase, excluding cable.
Need selection advice?
Fits a guide rail: The 50 mm models. See the Guide Rail System
View all model specifications
| Model | Power | Voltages | Discharge | Best efficiency point | Max head | Max flow | Solids | Weight |
|---|---|---|---|---|---|---|---|---|
| 32GF21.0 | 1.0 kW | 220, 380 V | 32 mm / 1.25″ | 60 L/min at 17 m | 20.5 m | 130 L/min | 27/25 kg | |
| 32GF21.0F | 1.0 kW | 220, 380 V | 32 mm / 1.25″ | 60 L/min at 17 m | 20.5 m | 130 L/min | 27/25 kg | |
| 32GF21.5 | 1.5 kW | 220, 380 V | 32 mm / 1.25″ | 60 L/min at 23 m | 26 m | 150 L/min | 36/32 kg | |
| 32GF21.5F | 1.5 kW | 220, 380 V | 32 mm / 1.25″ | 60 L/min at 23 m | 26 m | 150 L/min | 36/32 kg | |
| 32GF21.5H | 1.5 kW | 220, 380 V | 32 mm / 1.25″ | 60 L/min at 26 m | 30 m | 140 L/min | 36/32 kg | |
| 32GF21.5HF | 1.5 kW | 220, 380 V | 32 mm / 1.25″ | 60 L/min at 26 m | 30 m | 140 L/min | 36/32 kg | |
| 32GF22.2 | 2.2 kW | 220, 380 V | 32 mm / 1.25″ | 60 L/min at 29 m | 32 m | 165 L/min | 38/36 kg | |
| 32GF22.2F | 2.2 kW | 220, 380 V | 32 mm / 1.25″ | 60 L/min at 29 m | 32 m | 165 L/min | 38/36 kg | |
| 50GF22.2 | 2.2 kW | 380 V | 50 mm / 2″ | 200 L/min at 20 m | 25 m | 330 L/min | 44 kg | |
| 50GF23.7 | 3.7 kW | 380 V | 50 mm / 2″ | 200 L/min at 27 m | 31.5 m | 330 L/min | 47 kg | |
| 50GF25.5 | 5.5 kW | 380 V | 50 mm / 2″ | 400 L/min at 24 m | 33 m | 550 L/min | 73 kg | |
| 50GF25.5H | 5.5 kW | 380 V | 50 mm / 2″ | 250 L/min at 33 m | 40 m | 370 L/min | 74 kg | |
| 50GF27.5 | 7.5 kW | 380 V | 50 mm / 2″ | 400 L/min at 35 m | 46 m | 550 L/min | 80 kg | |
| 50GF27.5H | 7.5 kW | 380 V | 50 mm / 2″ | 250 L/min at 46 m | 53 m | 370 L/min | 73 kg |
GF Series features
Specially designed to macerate waste for pressure sewage systems, with chromium alloy and stainless steel parts.
Sealed cable entry
An epoxy resin cable base stops moisture getting into the motor through the core wires.
Automatic motor protection
An auto-cut thermal switch cuts power on a power surge, locked rotor, phase failure or overload, then restarts the motor once it has cooled.
High-efficiency dry motor
Varnish-insulated stator coils for good insulation, efficiency and durability.
Double mechanical seals
Abrasion-resistant silicon carbide seals run in an oil housing, independent of the pumped liquid.
Hardened cutting system
A cutter on the shaft works against a stationary cutting ring at the inlet, both hardened to 55 to 60 Rockwell C, grinding solids before they reach the casing.
Strong single phase start
A centrifugal switch and capacitor design gives the single phase pumps five times the torque of average capacitor starting.
Catalogue and specifications
See the manufacturer's catalogue for performance curves, dimensions and technical information.
GF Series catalogue
50 Hz · PDF
Related ranges
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