Tsurumi 50PNA21.5 Automatic Submersible Portable Sewage & Wastewater Pump – 50PNA21.5
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The Tsurumi 50PNA21.5 is an automatic submersible portable sewage and wastewater pump designed for demanding wastewater, stormwater, and drainage applications. Built with a corrosion-resistant glass-fibre reinforced resin casing and a 304 stainless steel shaft, it features a semi-vortex impeller with a 20 mm solids passage for reliable handling of wastewater containing small solids. The integral automatic float switch provides unattended operation, while Tsurumi's dual silicon carbide mechanical seals with Oil Lifter, anti-wicking cable entry, and built-in thermal motor protection ensure dependable long-term performance and reduced maintenance. :contentReference[oaicite:0]{index=0}
Suitable Applications
- Residential wastewater drainage
- Basement rainwater pumping
- Septic tanks
- Wastewater treatment systems
- Construction wastewater drainage
- Waterscapes, fountains, ponds, and fish farms
Key Specifications
| Product Name | 50PNA21.5 |
| Pump Series | PN Series |
| Pump Type | Automatic Submersible Portable Sewage & Wastewater Pump (Semi-Vortex) |
| Model | 50PNA21.5 |
| Discharge Bore | 50 mm |
| Motor Output (P2) | 1.5 kW |
| Phase | Three Phase |
| Starting Method | Direct On Line (D.O.L.) |
| Maximum Solids Passage | 20 mm |
| Maximum Flow Rate | 15 L/sec (0.9 m³/min) |
| Maximum Head | 26.1 m |
| Impeller Type | Semi-Vortex |
| Shaft Seal | Dual Silicon Carbide Mechanical Seal with Oil Lifter |
| Bearing | Double-Shielded Ball Bearing |
| Pump Casing | Glass-Fibre Reinforced Resin |
| Impeller Material | Glass-Fibre Reinforced Resin |
| Shaft Material | 304 Stainless Steel |
| Motor Type | Dry-type Submersible Induction Motor, 2-Pole |
| Fluid Type | Wastewater and Water Carrying Small Solid Matters |
| Liquid Temperature | 0–40 °C |
| Discharge Connection | Threaded Oval Flange |
| Protection Device | Circle Thermal Protector |
| Lubricant | Liquid Paraffin (ISO VG32) |
| Cable Length | 6 or 10 m |
| Dry Weight | 16.8 kg |
| Operation | Automatic Float Switch |
| Approval | RCM |
Documentation & Downloads
| PN Series Product Guide | Download |
| VANCS PU / PN / TM Series Catalogue | Download |