Güde GS 4002 P Submersible Dirty Water Pump – 7500 l/h, 5 m head, 400 W
The GS 4002 P pump is specialized equipment for draining blackwater and dirty water from construction sites, flooded basements, ditches, wells, and cellars after heavy rains, as well as for maintaining ditches and gardens. Unlike clean water pumps, the GS 4002 P is built to handle solid particles up to 35 mm (small stones, mud, debris, leaves) without clogging or damage.
The flow rate of 7500 liters/hour is suitable for efficient drainage in domestic and semi-industrial settings. The 5-meter head allows water to be transported up to 5 meters in vertical height – sufficient for pumping from a basement to street level or from a ditch to a drainage channel. The adjustable float switch automatically activates and deactivates the pump when the water level rises/falls, eliminating the need for continuous monitoring.
Key Features:
-
Flow rate 7500 liters/hour – Rapid drainage of accumulated water. Basement emptying time for 2-3 meters: approximately 10-15 minutes per meter of depth with horizontal discharge pipe
-
5-meter head – Water transport up to 5 m vertical height. Suitable for basement→street, ditch→channel, cellar→surface
-
Particles up to 35 mm – Robust Noryl impeller accepts small stones, mud, debris without clogging. No preliminary filter needed as with clean water pumps
-
Impact-resistant plastic body – Lightweight (3.6 kg) and robust against construction site impacts. Does not rust when exposed to prolonged humidity
-
Adjustable float switch – Automatic drainage: pump activates when water rises, deactivates when it falls. Eliminates manual flooding for operators
-
10-meter connection cable – Length already included. Access to deep wells and basements without the need for extension cords
-
Integrated thermal protection – Shuts off the motor if overheating occurs from prolonged intense cycles
-
CE + GS Certifications – European safety compliance. German Güde quality standard
Who chooses it in Italy
Construction and excavation companies – Constant drainage of construction pits, foundations, excavations on construction sites during heavy rains. The 7500 l/h flow rate allows for rapid work cycles without interruptions.
Basement and garage owners – Basement floods after exceptional rains, water infiltration from groundwater. A pump always available in the garage reduces damage and drying time.
Agricultural and landscaping companies – Drainage of ditches, emergency irrigation, emptying water collection wells. The ability to handle mud and debris without preliminary filters is an advantage in an agricultural environment.
After-sales support and compatibility
Krollit provides original Güde spare parts for the GS 4002 P with average delivery times of 5-7 working days:
- Replacement impeller (if damaged by coarse particles)
- Replacement mechanical seal (if pressure loss)
- Replacement sliding ring seal
- Replacement float switch
- Replacement motor
- Replacement connection cable (10 m)
- Replacement sealing gaskets (kit)
- Manual in Italian and technical data sheet available in PDF
Who the GS 4002 P is suitable for
| Profile |
Suitable? |
Reason |
| Construction site / construction company |
Ideal |
Continuous drainage of foundation pits. 7500 l/h flow rate covers rapid work cycles. 35 mm particle capacity avoids preliminary filters |
| Homeowner / basement owner |
Ideal |
Occasional flooding from heavy rains. 10 m cable allows placement in deep basements. Float switch reduces manual intervention |
| Agricultural company |
Adequate |
Drainage of ditches and water collection wells. If frequent use cycles (150+ hours/year), investment is justified |
Not suitable for: Clean pool water (use specific clean water pumps); crystal clear water situations that do not require filtration; occasional single cycles (1-2 times/year – rental is a more economical option); immersion depth >4 m (declared limit).
Technical Specifications
Pumping Performance
| Maximum flow rate |
7500 liters/hour |
| Flow rate in m³/hour |
7.5 m³/hour |
| Maximum head |
5 m (meters water column) |
| Maximum immersion depth |
4 m |
| Suction depth |
Up to 4 m from the surface |
Water type and particles
| Permitted water type |
Blackwater, dirty water, muddy water |
| Maximum particle size |
35 mm (small stones, mud, debris) |
| Maximum water temperature |
35 °C |
| Typical use |
Construction sites, flooded basements, ditches, gardens, collection wells |
Motor and power supply
| Motor power |
400 W |
| Supply voltage |
230 V, single-phase |
| Frequency |
50 Hz |
| Connection cable |
10 meters (included) |
| Plug |
Standard European 230V plug |
| Thermal protection |
Integrated (shuts off if overheating) |
| Protection class |
IP 68 (fully submersible) |
Pumping and discharge
| Discharge pipe diameter |
32 mm (IG 1 1/4") |
| Connection type |
Internal thread 1 1/4" |
| Impeller |
Noryl (resistant to abrasion and particles) |
| Seal |
Sliding ring |
Automatic control
| Switch |
Adjustable float |
| Operation |
Automatic: turns on when level rises, turns off when level falls |
| Sensitivity adjustment |
Variable by positioning the float |
Construction and design
| Pump body |
Impact-resistant plastic (high-density polyethylene) |
| Handle |
Integrated carrying handle |
| Dimensions (L × W × H) |
200 × 126 × 294 mm |
| Net weight |
3.6 kg |
| Net weight (alternative data) |
3.3 kg |
| Packaging dimensions |
Not declared |
Compliance and safety
| CE Mark |
Yes – Machinery Directive 2006/42/EC |
| GS Certification |
Yes – TÜV (certified safety) |
| Güde item number |
94630 |
| GTIN |
4015671209313 |
| Place of production |
Germany |
Standard equipment
- GS 4002 P submersible dirty water pump complete
- Impact-resistant plastic pump body
- Integrated 400 W 230V motor
- Noryl impeller
- Adjustable float switch
- Integrated thermal protection
- Sliding ring seal
- Carrying handle
- 10-meter connection cable
- European 230V plug
- Manual in German
- Safety data sheet
Frequently Asked Questions
What is the flow rate of the GS 4002 P and what does 7500 l/h mean?
7500 liters/hour means the pump moves 7500 liters of water in 60 minutes. Converted: 7.5 cubic meters per hour, or 125 liters per minute. For a 2 × 3 × 2 meter basement (12 m³ of water), theoretical emptying time: 12 m³ ÷ 7.5 m³/h = 1.6 hours (96 minutes). Actual time depends on head (how high the water goes) and pipe length.
What is the maximum head of 5 meters and what does it practically mean?
The 5-meter head is the maximum height (in meters of water column) to which the pump can push water vertically. Practical: if a basement is 4 meters below the street, the pump can send water up to 4 meters high without problems. If the discharge pipe is horizontal, the flow rate remains 7500 l/h; if vertical (basement → street with 4 m elevation difference), the flow rate drops to ~5000 l/h due to the head effect.
What particles can the GS 4002 P tolerate?
Up to 35 mm maximum size (small stones, mud, debris, leaves). The robust Noryl impeller is designed for coarse particles. For water with fine suspended sand without solid particles >5 mm, no preliminary filter is needed. For very dirty water (60% mud, coarse debris >50 mm), a preliminary filter on the suction pipe is recommended to prevent impeller damage.
How much does the GS 4002 P weigh and is it easily transportable?
Weighing 3.6 kg, it is completely manually manageable. The integrated carrying handle allows for quick movement between construction sites. A 10-meter cable is already included, so no extension cords are needed for access to deep basements up to 4 meters.
What is the automatic float control system?
The adjustable float switch turns the pump on when the water level rises above a threshold, and turns it off when it falls below the threshold. Adjusting the float allows setting the desired level. Advantage: automatic drainage of a flooded basement without the need for manual monitoring – the pump operates autonomously during the night or when unattended.
What is the maximum water temperature the GS 4002 P can pump?
35 °C maximum water temperature. Water at higher temperatures (such as hot industrial wastewater) would damage the seals and the motor. The integrated thermal protection shuts off the motor if prolonged overheating is detected.
How long is the included connection cable?
A 10-meter connection cable is already included in the standard equipment. This length is sufficient for accessing deep basements up to 4 meters without the need for external extension cords. For very deep basements (>10 m), contact Krollit for specialized extension cords.
How is the pump positioned and how does suction work?
The pump must be positioned completely submerged in the liquid (maximum depth 4 m). The power plug remains outside, connected via the 10 m cable. The pump sucks water from the bottom (through a protective grid), compresses it, and pushes it through the 32 mm discharge pipe towards the drain (maximum height 5 m, maximum flow rate 7500 l/h). The float switch regulates automatic on/off.
