When the water sits below ground, the pump goes to the water. Submersible pumps operate fully immersed, which removes the suction-lift limit that constrains surface-mounted pumps and lets them draw from depths a centrifugal pump at ground level simply cannot reach. Running submerged also keeps the motor cool and the unit quiet.
The Niagara submersible range
The range spans clean-water borehole duty through to solids-handling wastewater: the NBS and NBZ series for deep-well and borehole extraction, the WQ, WQ-T-QG and SWQ series for drainage, sewage and industrial wastewater, and the QDX, NX and NCM series for domestic and light commercial transfer.
Applications
Borehole and deep-well water supply, agricultural irrigation, basement and site dewatering, stormwater sumps, and municipal or industrial wastewater handling.
Selecting a submersible pump
Start with the bore diameter, then the duty point — required flow (m³/h) against total head (m), including friction losses in the rising main. Water quality matters too: solids content, sand and abrasives all affect material selection and expected service life.
50 Hz and 60 Hz
Models are available in both 50 Hz and 60 Hz variants. Frequency changes the duty point, so confirm the correct variant for your supply before ordering.
NBS 50Hz
The NBS pump is a durable submersible pump designed for sludge, slurry, and sewage applications in civil engineering and mining.
NBS 60Hz
The NBS pump is a durable submersible pump designed for sludge, slurry, and sewage applications in civil engineering and mining.
NBZ 50Hz
The NBZ pump is a heavy-duty cast iron submersible pump ideal for civil engineering, mining, and sewage treatment applications.
NBZ 60Hz
The NBZ pump is a heavy-duty cast iron submersible pump ideal for civil engineering, mining, and sewage treatment applications.
NCM 50Hz
The NCM pump is a deep well submersible pump ideal for water supply in domestic, civil, industrial, and irrigation applications.
NCM 60Hz
The NCM pump is a deep well submersible pump ideal for water supply in domestic, civil, industrial, and irrigation applications.
NX 50Hz
The NX pump is a deep well submersible pump ideal for water supply in domestic, civil, industrial, and irrigation applications.
NX 60Hz
The NX pump is a deep well submersible pump ideal for water supply in domestic, civil, industrial, and irrigation applications.
QDX 50Hz
Submersible QDX pump for irrigation, drainage, and household water use, with a max liquid temperature of +40°C.
QDX 60Hz
Submersible QDX pump for irrigation, drainage, and household water use, with a max liquid temperature of +40°C.
SWQ 50Hz
The SWQ pump is a high-capacity stainless steel submersible pump designed for industrial wastewater, sewage, and corrosive medium applications.
SWQ 60Hz
The SWQ pump is a high-capacity stainless steel submersible pump designed for industrial wastewater, sewage, and corrosive medium applications.
