Submersible Pump STP2-500 Set – Sludge Pump
Product code (SKU): 401010004Submersible Pump STP2-500 Set – Sludge Pump
Submersible Pump STP2-500 Set – powerful for pumping sand, sludge and slurry
The Submersible Pump STP2-500 Set is designed for pumping liquids containing sand, sludge and slurry. It is delivered as a complete package: pump, 15 m hose with couplings and an impact-resistant plastic case. In addition, a 10 m rope and an approved impact-resistant plug mounted on a 10 m power cable (3×1.5 mm²) are included. The hose is available as a blue PVC hose or as a white braided hose.
The pump housing is made of cast iron, ensuring excellent wear resistance and high flow capacity. The impeller is made of polyurethane, and a 10 mm gap between the impeller and the pump housing guarantees high flow rates and stable pumping performance.
The bottom intake with 10 mm holes prevents larger particles from entering the impeller. The built-in thermal protection automatically shuts down the pump in case of overheating, allowing temporary dry running without the risk of damage.
The pumps are designed for easy maintenance – with only three screws, access to the impeller is possible.
Particularly suitable for:
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Pumping sand, sludge and slurry
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Construction site dewatering with solids
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Emptying tanks and trenches
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Dewatering of low-lying areas with contaminated water
Submersible pump STP2-500 is a sludge pump for liquids that contain sand, mud and slurry. The set comes as a complete package with hose, rope and an impact-resistant storage case.

Add the product to the quotation basket and send your request – we confirm availability and delivery time at the same time.
Submersible pump STP2-500 – features
- For pumping sand, sludge and slurry
- Max. flow 205 l/min, head 12 m
- Motor power 0.4 kW, 230 V
- Cast iron housing and polyurethane impeller
- Particles up to 10 mm
- Thermal protection, temporary dry running possible
- IP rating IP68, max. immersion depth 6 m
- Includes 15 m hose with couplings, 10 m rope and plastic case
- 10 m power cable (3×1.5 mm²) with approved impact-resistant plug
- Weight 10 kg
Submersible pump STP2-500 – design and operation
The pump housing is cast iron, which gives excellent wear resistance and high flow capacity. In addition, the impeller is polyurethane.
A 10 mm gap between the impeller and the housing ensures high flow rates and stable pumping, even with water containing solids.
The bottom intake has 10 mm holes that keep larger particles out of the impeller. Furthermore, the thermal protection stops the pump if it overheats.
As a result, the pump can even run dry for a short time without risk of damage.
Applications
- Pumping sand, sludge and slurry
- Construction site dewatering with solids
- Emptying tanks and trenches
- Dewatering low-lying areas with contaminated water
Submersible pump STP2-500 – maintenance
The pump is designed for easy maintenance. For example, you reach the impeller by opening only three screws.
After muddy water, rinse the pump with clean water. Therefore, sand and sludge do not dry inside the pump.
In addition, keep the pump, hose and rope in the impact-resistant case, so everything is in one place on the next site.
Choosing among our submersible pumps
The STP2-500 set passes 10 mm particles and lifts water to 12 m. For flat suction of clean water, however, the STP2-480DW set suits better, as it removes water down to 1.0 mm.
For wastewater with particles up to 50 mm, the Vortex 100M is available. You find the other pumps in the submersible pumps product group.
Submersible pump STP2-500 – safety
The pumped liquid may be up to 40 °C, and the maximum immersion depth is 6 m. Lower the pump into a trench with the included 10 m rope.
Never lift or lower the pump by its power cable; use the rope or handle instead. Keep the plug in a dry place above the water level, and connect the pump to a socket protected by a residual current device (RCD). A qualified electrician carries out repairs and electrical work. The requirements for electrical work are described on the Tukes website.
Submersible pump STP2-500 – technical data
| Max. flow | 205 l/min |
| Head | 12 m |
| Max. pressure (0 l/min) | 1.2 bar @ 12 m |
| Motor power | 0.4 kW |
| Rated voltage | 230 V |
| Outlet size | 2″ |
| Max. particle size | 10 mm |
| IP rating | IP68 |
| Max. liquid temperature | 40 °C |
| Max. immersion depth | 6 m |
| Hose length | 15 m (blue PVC or white braided) |
| Power cable | 10 m, 3×1.5 mm² |
| Weight | 10 kg |
| Product number | 401010004 |
Frequently asked questions
What is the STP2-500 for?
It pumps liquids that contain sand, mud and slurry.
How large particles can the pump handle?
Up to 10 mm. The 10 mm holes in the bottom intake keep larger particles out.
Can the pump run dry?
For a short time, yes. The thermal protection stops the pump if it overheats.
Which hose comes with the set?
The hose is available as a blue PVC hose or a white braided hose.
What is the product number?
The product number (MPN) is 401010004. Use it in quotation requests.
Request a quote
Add the product to the quotation basket and tell us which hose option you prefer and what kind of water you pump. We confirm availability and delivery time at the same time.
Technical information
| Size of cable entry | 2" |
|---|---|
| Nominal voltage | 230V |
| Moottorin teho | 0,4 kW |
| Maximum flow rate | 205 L/min |
| Maximum head | 12 m |
| Weight | 10 kg |
| Maximum particle size | 10 mm |
| Hose length | 15 m |
| Enclosure class | IP68 |
| Max. paine (0 L/min) | 1,2 Bar @12m |
| Min. paine | ≈ 0 @0m |
| Nesteen max. lämpötila | 40°C |
| Max. upotussyvyys | 6m |