Supplier Part Number: SPT 437
Pros and Cons:
+ Powerful 3.7 kW three-phase pump (400V) for sand and dirty water
+ Open vortex impeller — resistant to fibres and solids
+ Robust cast iron housing with chrome steel impeller — wear-resistant
+ Double mechanical shaft seal (SiC) and thermal protection
- Only available as 400V three-phase — no 230V version
Professional Dirty Water Submersible Pump
The SPT 437 is a powerful three-phase submersible pump (3.7 kW, 400V) for heavy-duty jobs. Pumping up to 90 m³/hour and with an 18-meter head, it effortlessly pumps sandy and gravel-laden dirty water on construction sites, in industry, and for municipal drainage.
The pump casing and motor are made of wear-resistant cast iron, and the open vortex impeller is made of chrome steel casting. With a double mechanical shaft seal of silicon carbide (SiC) and built-in thermal motor protection, the 437 is resistant to abrasive, contaminated water and continuous operation.
Which SPT submersible pump do I need?
Choose based on power, head, and flow rate. The 437 delivers up to 90 m³/hour and an 18-meter head. If you need more pressure or flow rate, consider a heavier model from the SPT 215–8220 series. Unsure about the right choice? Feel free to ask us for advice.
Scope of delivery
SPT 437 submersible pump with R 4" discharge connection. This 400V three-phase pump does not have a built-in float; level control is managed via an external control unit.
Technical specifications SPT 437
| Power | 3.7 kW (2-pole, 2900 rpm) |
| Voltage | 400 V / 3-phase (three-phase current) |
| Rated current | 7.70 A |
| Max. head | 18 meters |
| Max. flow rate | 90 m³/hour |
| Free passage | 8.5 mm |
| Discharge connection | 4" (100 mm) R"AG |
| Material | Cast iron housing, chrome steel impeller |
| Shaft seal | Double mechanical seal (SiC) |
| Weight | 66 kg |
Downloads
1. SPT 215–8220 datasheet (DE)
No-obligation advice?
Unsure if the SPT 437 is right for your situation? Feel free to contact our customer service — we are happy to help you find the best solution.
