Tsurumi 50PNI2 Automatic Submersible Drainage Pump | Compact Bell Float
Built for the job
Tsurumi 50PNI2 Automatic Submersible Drainage Pump | Compact Bell Float for Narrow Sumps
The Tsurumi 50PNI2 is a light, compact automatic drainage pump for clean and dirty water, with an energy efficient motor and an integral anti-airlock valve. Its small bell-shaped float makes it well suited to narrow sumps, to jobs that need precise level control, and to places where a traditional pendant float could be fouled.
What is the Tsurumi 50PNI2 used for?
- Basement and cellar drainage
- Narrow sumps and pits
- Domestic and utility drainage
- Industrial and processing applications, including food processing and aquaculture (the motor is lubricated with paraffin oil)
Not recommended for ponds or water features, and not a sewage pump: for foul water, choose a dedicated sewage pump.
Dual control float switch
The float switch is dual control, so the pump can run automatically or be switched to manual operation. The on and off levels are adjustable, so the pump can be set to suit the sump. The float is a small, bell-shaped unit that sits close to the pump body rather than swinging on a cable.
Construction and durability
The pump casing, outlet, impeller and top cover are GFRP (glass fibre reinforced polymer), which resists corrosion and keeps the pump light. The motor casing is 304 stainless steel. The vortex impeller passes solids up to 10 mm with less risk of blockage, and a double silicon carbide mechanical seal protects the motor.
Specification
| Model | Power | Supply | Max flow | Max head | Free passage | Switch on level | Switch off level | Dry weight |
|---|---|---|---|---|---|---|---|---|
| 50PNI2.4S(A) | 0.40 kW | 230V | 280 L/min | 12 m | 10 mm | 325 mm | 110 mm | 7.4 kg |
| 50PNI2.75S(A) | 0.75 kW | 230V | 340 L/min | 15.5 m | 10 mm | 345 mm | 110 mm | 9.5 kg |
| Construction | Detail |
|---|---|
| Pump casing, outlet, impeller and top cover | GFRP (glass fibre reinforced polymer) |
| Motor casing | 304 stainless steel |
| Shaft | 403 stainless steel |
| Impeller type | Vortex |
| Shaft seal | Double mechanical, silicon carbide |
| Lubrication | Paraffin oil (liquid paraffin) |
| Strainer stand | ABS |
| Level switch | Bell float, GFRP, dual control (manual or automatic), adjustable levels |
| Motor | 2 pole, IP68, Class E, integral thermal protection, internal capacitor |
| Outlet | 2 inch BSPF |
| Cable | 10 m rubber |
| Dimensions (W x L x H) | 246 x 241 x 380 mm |
| Liquid | Clean and dirty water, 0 to 40°C |
Optional auto-coupling
An auto-coupling set (TOK4-P, for 0.40 kW to 0.75 kW motors) is available for permanent sump installations, so the pump can be lifted out on guide rails without disconnecting the pipework.
What's in the box
- 1 x Tsurumi 50PNI2 submersible drainage pump with bell float switch and 10 m cable
