Pedrollo 6SR-HYD 6-Inch Borehole Pump Ends
Pedrollo 6SR 44/4 HYD 6-Inch Borehole Pump End 2204310
- Established 1975
- Trusted by thousands of customers
The Pedrollo 6SR 44/4 HYD is a 6″ submersible borehole pump end for a 4 kW (5.5 HP) motor, delivering up to 1000 l/min and 43 m head.
Pump end only, with no motor. Noryl™ impellers coated with a sand-resistant elastomer and chromium-oxide-coated AISI 316L bearings handle water with up to 100 g/m³ of sand. Fit it to a 6″ motor of 4 kW (5.5 HP).
More about this product
Product overview
The Pedrollo 6SR 44/4 HYD is a 6″ submersible borehole pump end for clean water with up to 100 g/m³ of sand. It covers 200 to 1000 l/min with a working head of 43 m down to 8 m, and needs a 6″ motor of 4 kW (5.5 HP). Pedrollo’s own 6″ motors are the 6PD rewindable oil-filled and 6PSR rewindable water-filled types, both three-phase 400 V.
Pedrollo use special materials in the 6SR to resist sand abrasion: the Noryl™ impellers carry a sand-resistant elastomer coating and the AISI 316L pump bearings a chromium oxide coating. It suits industrial, civil and agricultural use, including water distribution with pressure tanks, irrigation, pressure boosting and fire-fighting systems.
The delivery port and the motor bracket (sized to NEMA standards) are cast iron with cataphoresis treatment, and the delivery port has a 3″ ISO 228/1 thread. The check valve, external sleeve, diffuser boxes, pump shaft, filter and cable sheath are AISI 304 stainless steel, and the tow coupling is AISI 420 stainless steel.
Key features
Typical applications
Technical specifications
| Brand / Series | Pedrollo — 6SR-HYD |
| Model | 6SR 44/4 HYD (pump end) |
| Pedrollo code | 2204310 |
| Supplied as | Pump end only, no motor |
| Motor needed | 6″ motor, 4 kW / 5.5 HP (P2), three-phase |
| Flow range | 200–1000 l/min |
| Head range | 43–8 m |
| Peak efficiency | η = 74% (6SR 44) |
| Delivery port | 3″ ISO 228/1, cast iron with cataphoresis treatment |
| Check valve | AISI 304 stainless steel |
| Motor bracket | Cast iron with cataphoresis treatment, sized to NEMA standards |
| External sleeve | AISI 304 stainless steel |
| Impellers | Noryl™, coated with sand-resistant elastomer |
| Diffusers | Noryl™ |
| Diffuser boxes | AISI 304 stainless steel |
| Pump shaft | AISI 304 stainless steel |
| Pump bearings | AISI 316L stainless steel, chromium oxide coated |
| Tow coupling | AISI 420 stainless steel |
| Filter and cable sheath | AISI 304 stainless steel |
| Pump end length | 761 mm |
| Pump diameter | 148 mm |
| Minimum well diameter | 6″ (153 mm) |
| Maximum sand content | 100 g/m³ |
| Liquid temperature | Up to +35 °C |
| Installation | Vertical or horizontal |
| Maximum depth | 200 m below water level with 6PD motors, 150 m with 6PSR motors |
| Minimum cooling flow | 8 cm/s |
| Starts per hour | 20, at regular intervals |
| Duty | Continuous running S1 |
| Efficiency index | MEI ≥ 0.40 |
| Liquid | Clean water |
Installation
6SR 44 range
| Model | Code | Motor needed | Flow | Head | Delivery |
|---|---|---|---|---|---|
| 6SR 44/4 | 2204310 | 4 kW / 5.5 HP | 200–1000 l/min | 43–8 m | 3″ |
| 6SR 44/5 | 2204320 | 5.5 kW / 7.5 HP | 200–1000 l/min | 53.5–10 m | 3″ |
| 6SR 44/6 | 2204330 | 7.5 kW / 10 HP | 200–1000 l/min | 64–11.5 m | 3″ |
| 6SR 44/8 | 2204340 | 9.2 kW / 12.5 HP | 200–1000 l/min | 86–15.5 m | 3″ |
| 6SR 44/10 | 2204350 | 11 kW / 15 HP | 200–1000 l/min | 107–19.5 m | 3″ |
| 6SR 44/12 | 2204360 | 13 kW / 17.5 HP | 200–1000 l/min | 128–23.5 m | 3″ |
| 6SR 44/14 | 2204370 | 15 kW / 20 HP | 200–1000 l/min | 150–27.5 m | 3″ |
| 6SR 44/16 | 2204380 | 18.5 kW / 25 HP | 200–1000 l/min | 171–31 m | 3″ |
| 6SR 44/20 | 2204390 | 22 kW / 30 HP | 200–1000 l/min | 214–39 m | 3″ |
| 6SR 44/25 | 2204400 | 30 kW / 40 HP | 200–1000 l/min | 267–49 m | 3″ |
Head shown as the working range from minimum to maximum flow. Performance to Pedrollo 50 Hz data. Pump ends only, without motors.
Frequently asked questions
Does it come with a motor?
No. This is the pump end only. Fit it to a 6″ motor of 4 kW (5.5 HP); the motor bracket follows NEMA standards.
What size borehole does it need?
Wells with a minimum diameter of 6″ (153 mm).
How much sand can it handle?
Up to 100 g/m³. The impellers carry a sand-resistant elastomer coating and the AISI 316L bearings a chromium oxide coating.
Can I install it horizontally?
Yes. Pedrollo’s limits for horizontal installation on the 6SR are up to 12 stages or up to 11 kW, and this model has 4 stages and a 4 kW motor.
How deep can it go?
Up to 200 m below water level with a Pedrollo 6PD motor, or 150 m with a 6PSR motor.
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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 6SR 44/4 HYD 6-Inch Borehole Pump End 2204310. 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.