GNWQ Cutting Submersible Sewage Pump50GNWQ15-25-4S Stainless High-Head Cutter Pump
The 50GNWQ15-25-4S combines SS304 corrosion resistance with 25 m of head — for lifting shredded, aggressive effluent through small lines. 15 m³/h, 4 kW

Model: 200GNWQ300-15-22
At 300 m³/h the 200GNWQ300-15-22 is the largest GNWQ cutter sewage pump — a 22 kW, 200 mm workhorse for municipal pumping stations and large drainage.
| Flow Rate | 300m³/h |
|---|---|
| Head | 15m |
| Power | 22kW |
| Inlet / Outlet Diameter | 200mm |
| Material | Cast Iron,SS304 |
When a municipal lift station or district drainage line has to move serious volume — and that flow carries everything a city sewer collects, from rags and wipes to plastic and textiles — you need size and a cutter that keeps up with both. The 200GNWQ300-15-22 sits at the top of the GNWQ range for exactly that.
It pushes up to 300 m³/h at 15 m head from a 22 kW motor through a 200 mm outlet. At that throughput even a good non-clog impeller still jams on the modern sewage stream — wet wipes being the notorious culprit. The GNWQ answer is to shred first: the 48 HRC alloy cutter reduces solids on intake so the large 3Cr13 impeller passes them cleanly.
It’s built to run hard — HT200/HT250 cast iron, heavy bearings, a mechanical seal rated for continuous duty — and the cutter disc is detachable for field service without pulling the whole pump.
Specifying a station pump? Send us your flow, head and the worst thing in your influent to sales@haquanpump.com.
GNWQ Cutting Submersible Sewage PumpThe 50GNWQ15-25-4S combines SS304 corrosion resistance with 25 m of head — for lifting shredded, aggressive effluent through small lines. 15 m³/h, 4 kW
GNWQ Cutting Submersible Sewage PumpThe 100GNWQ100-15-7.5S is a precision-cast SS304 cutter sewage pump for salty, acidic or food-processing effluent that rusts cast iron. 100 m³/h, 15 m, 7.5 kW.
GNWQ Cutting Submersible Sewage PumpThe 80GNWQ35-12-2.2 is a 2.2 kW, 80 mm cutter sewage pump built for farm and livestock slurry — its alloy cutter disc handles straw, bedding and manure fibre without clogging.