Tsurumi PN Series Submersible Wastewater Pumps

Automatic (PNA) models carry an integrated float switch, so the pump starts and stops with the water level and won’t run dry. Auto-alternation versions share the load between two pumps in duty/standby installations, and guide-rail versions make pit servicing easier. The video shows how the automatic models work.

The resin and stainless construction tolerates seawater and rainwater pumping duty. For anything permanently immersed in salt water — intakes, live-holding, marine RAS — the titanium Tsurumi TM series is the right choice.

Pick the PN on cleaner drainage — its semi-vortex design gives more head per kilowatt. If the water carries larger or stringy solids, the vortex PU series passes solids to 46 mm without clogging.

They are taken from Tsurumi’s 50 Hz performance curves. Max flow is at zero head and max head is at zero flow, so use the performance curve to check your actual duty point.

It comes down to your duty point — flow, delivery head, pipe run and what’s in the water. Send us those details and we’ll confirm the right model, price and lead time.