Supplier item number: SPT 337
Pros and Cons:
+ Powerful 3.7 kW three-phase current pump (400V) for sandy and dirty water
+ Open vortex impeller — resistant to fibers 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 current — no 230V version
Professional dirty water submersible pump
The SPT 337 is a powerful three-phase submersible pump (3.7 kW, 400V) for heavy-duty jobs. With up to 55 m³/hour and 29 meters head, it effortlessly pumps sandy and gravel-containing dirty water in construction pits, industry, and municipal dewatering.
The pump housing and motor are made of wear-resistant cast iron, the open vortex impeller of chrome steel cast. With a double mechanical shaft seal of silicon carbide (SiC) and built-in thermal motor protection, the 337 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 337 delivers up to 55 m³/hour and 29 meters head. If you need more pressure or flow rate, consider a heavier model from the SPT 215–8220 series. Do you have doubts about the right choice? Feel free to ask us for advice.
Scope of delivery
SPT 337 submersible pump with R 3" discharge connection. This 400V three-phase current pump does not have a built-in float; level control is done via an external controller.
Technical specifications SPT 337
| Power | 3.7 kW (2-pole, 2900 rpm) |
| Voltage | 400 V / 3-phase (three-phase current) |
| Rated current | 7.70 A |
| Max. head | 29 meters |
| Max. flow rate | 55 m³/hour |
| Free passage | 8.5 mm |
| Discharge connection | 3" (80 mm) R"AG |
| Material | Cast iron housing, chrome steel impeller |
| Shaft seal | Double mechanical seal (SiC) |
| Weight | 65 kg |
Downloads
1. SPT 215–8220 datasheet (DE)
Obligation-free advice?
Are you unsure if the SPT 337 is suitable for your situation? Feel free to contact our customer service — we are happy to help you.
