Pedrollo NK-GE Multi-Stage Submersible Pumps with Float Switch
Pedrollo NKm 4/4 GE Single Phase 2200250
- Established 1975
- Trusted by thousands of customers
The Pedrollo NKm 4/4 GE is a 0.75 kW (1 HP) stainless steel multi-stage submersible pump with float switch on a 230 V single-phase supply, delivering up to 120 l/min and 52 m head.
Part of Pedrollo’s NK range for clean water, with an AISI 304 stainless steel outer sleeve, Noryl™ impellers and a WRAS-approved DRINCABLE® power cable.
More about this product
Product overview
The Pedrollo NKm 4/4 GE is a 0.75 kW (1 HP) stainless steel multi-stage submersible pump for clean water on a 230 V single-phase supply, covering 20 to 120 l/min with a working head of 52 m down to 16 m. Patented solutions prevent the pump stalling after long periods of inactivity.
The NK suits domestic, civil and agricultural use, including water supply from tanks and reservoirs, distribution with pressure tanks, irrigation and pressure boosting. It has an AISI 304 stainless steel outer sleeve, motor sleeve and suction filter with anti-vibration feet, Noryl™ impellers and diffusers, an AISI 431 shaft, a double mechanical seal in an oil chamber and an automatic vent valve. The single-phase GE model includes a float switch.
Key features
Typical applications
Technical specifications
| Brand / Series | Pedrollo — NK |
| Model | NKm 4/4 GE |
| Pedrollo code | 2200250 |
| Supply | 230 V single-phase |
| Motor power (P2) | 0.75 kW / 1 HP |
| Motor | 230 V single-phase motor with built-in thermal protection and capacitor |
| Flow range | 20–120 l/min |
| Head range | 52–16 m |
| Pump type | Multi-stage submersible pump |
| Outer sleeve | AISI 304 stainless steel, ISO 228/1 threaded delivery port |
| Suction filter | AISI 304 stainless steel, with anti-vibration feet |
| Motor sleeve | AISI 304 stainless steel |
| Impellers and diffusers | Noryl™ |
| Diaphragms | AISI 304 stainless steel |
| Motor shaft | AISI 431 stainless steel |
| Mechanical seals | Double mechanical seal with oil chamber: ceramic / graphite / NBR (motor side), silicon carbide / graphite / NBR (pump side) |
| Automatic vent valve | Included |
| Anti-stall design | Patented solutions to prevent stalling after long periods of inactivity |
| Delivery port | 1¼″ |
| Pump diameter | 135 mm |
| Height | 543 mm |
| Float switch | Included |
| Power cable | DRINCABLE®, WRAS approved for drinking water to BS 6920 (approval no. 7513); 20 m |
| Maximum depth | 20 m below water level |
| Maximum sand content | 150 g/m³ |
| Liquid temperature | Up to +40 °C |
| Installation | Vertical |
| Insulation / protection | Class F / IP X8, continuous duty S1 |
| Liquid | Clean water |
NK-GE range
| Model | Code | Supply | Power | Flow | Head |
|---|---|---|---|---|---|
| NKm 2/2 GE | 2200190 | Single Phase | 0.37 kW / 0.5 HP | 10–80 l/min | 32–16.4 m |
| NKm 2/3 GE | 2200200 | Single Phase | 0.55 kW / 0.75 HP | 10–80 l/min | 47–24 m |
| NKm 2/4 GE | 2200210 | Single Phase | 0.75 kW / 1 HP | 10–80 l/min | 62.5–32 m |
| NKm 2/5 GE | 2200220 | Single Phase | 1.1 kW / 1.5 HP | 10–80 l/min | 78–40 m |
| NKm 2/6 GE | 2200230 | Single Phase | 1.5 kW / 2 HP | 10–80 l/min | 94–48 m |
| NKm 4/3 GE | 2200240 | Single Phase | 0.55 kW / 0.75 HP | 20–120 l/min | 39–12 m |
| NKm 4/4 GE | 2200250 | Single Phase | 0.75 kW / 1 HP | 20–120 l/min | 52–16 m |
| NKm 4/5 GE | 2200260 | Single Phase | 1.1 kW / 1.5 HP | 20–120 l/min | 65–20 m |
| NKm 4/6 GE | 2200270 | Single Phase | 1.5 kW / 2 HP | 20–120 l/min | 78–24 m |
| NKm 8/3 GE | 2200280 | Single Phase | 1.1 kW / 1.5 HP | 40–160 l/min | 39–16.2 m |
| NKm 8/4 GE | 2200290 | Single Phase | 1.5 kW / 2 HP | 40–160 l/min | 52–21.6 m |
Head shown as the working range from minimum to maximum flow. Performance to Pedrollo 50 Hz data.
Frequently asked questions
Does it have a float switch?
Yes. The single-phase GE models include a float switch.
Is the cable approved for drinking water?
Yes. The DRINCABLE® power cable is WRAS approved for drinking water to BS 6920, approval no. 7513.
How deep can it go?
Up to 20 m below water level, with an appropriately sized power cable.
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Data Sheet PDFDownload
Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.
Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).
Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.
Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.
Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.
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Frequently Asked Questions
Quick answers to common questions about the Pedrollo NKm 4/4 GE Single Phase 2200250. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.
What is a submersible pump?
A submersible pump is designed to operate fully submerged in the liquid it is moving. The motor is sealed inside the pump body and cooled by the surrounding water. Submersibles are used for drainage, sewage, septic tanks, deep wells and boreholes, and for raising water from sumps, cellars and floodwater. Many stocked at Anglian Pumping handle solids in suspension.
Can submersible pumps handle solids and sewage?
Yes – some submersibles are designed for clean water only, others handle solids up to 50 mm or full raw sewage. Anglian Pumping stocks ABS, BBC, Flygt and T-T Submersibles ranges that include vortex, single channel and grinder impellers for different solids handling requirements. Always match the pump to the maximum solid size and the type of effluent it will see.
When should I use a submersible pump instead of a surface pump?
Use a submersible when the water level is more than around 8 metres below the pump installation point – surface pumps cannot self-prime beyond that depth. Submersibles are also better when the liquid contains solids, when noise must be minimised, or when the pump needs to operate in confined spaces such as sumps and chambers where a surface pump would not fit.