
TSURUMI Vortex Resin Sludge Pump (Automatic OMA5)
潛水泵
$2,470.00
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The TSURUMI 50PUMA2.15S is the automatic-operation model in the PU series of vortex-type resin submersible sewage pumps. In the model code, "50" denotes a 50mm (2") discharge bore, "MA" denotes the float-switch automatic-operation variant, "2.15" denotes a 0.15kW (1/5HP) motor output, and "S" denotes the small single-phase motor version. The pump uses a semi-vortex resin impeller together with an engineering-resin pump casing and a 304 stainless steel motor housing, with a built-in float switch that starts and stops the pump automatically as the liquid level rises and falls — suitable for unattended small-scale sewage sumps, basement drainage pits and garden water features.

| Model | 50PUMA2.15S |
|---|---|
| Discharge Bore | 50mm (2"), NPT companion flange |
| Motor Output | 0.15kW (1/5HP) |
| Poles / Speed | 2-pole, approx. 3430rpm (60Hz) |
| Phase | Single phase |
| Voltage / Frequency | Varies by market (factory data sheet lists 115V/230V, 60Hz for the North American version); Hong Kong stock units — refer to the pump nameplate |
| Starting Method | Capacitor-Start |
| Max Total Head | Approx. 6.0m (19.7ft) |
| Max Capacity | Approx. 0.19 m³/min (approx. 11.4 m³/h) |
| Max Passable Solids | 35mm |
| Impeller Type | Semi-vortex resin impeller |
| Mechanical Seal | Silicon carbide |
| Main Materials | Pump casing: engineering resin (ABS/PPO); Motor housing/shaft: 304 stainless steel |
| Operation | Automatic start/stop via built-in float switch (MA automatic type) |
| Dry Weight | Approx. 6.1kg (pump only, excl. float switch cable) |
| Warranty | Warranty provided by the authorized Hong Kong distributor |