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Pedrollo 4BLOCK 4″ Monoblock Submersible Borehole Pumps

4BLOCK submersible pumps – These pumps are suitable for pumping water with a sand content of up to 150g/m3.

Flow rate up to 100 l/min (6m³/h) Head up to 128m

Manufacturer: Pedrollo

Next Working Day Delivery (UK Mainland Only)

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Pedrollo 4BLOCK 4″ Monoblock Submersible Borehole Pumps


Suitable for pumping clean water from boreholes that contain sand (up to 150 g/m3). Because of their high efficiency and reliability they are suitable for use in domestic applications such as domestic water supply as part of a pressure supply and for irrigation, etc.

Pedrollo 4BLOCK pumps can be installed in wells with a diameter of no less than 4″(100m). The pump is lowered into the well by means of the delivery pipe until it is completely immersed. (min 50cm) and at least one metre from the bottom of the well. Care should be taken to ensure that the pump remains submerged as pump operation may cause the level of the water in the well to fall. The pump can be installed either vertically or horizontally. When installed vertically it is advisable to secure the pump by using a stainless steel or nylon cable connected to the special holes provided on the discharge head.

4BLOCK pumps combine the advantages of a submersible pump with the performance of a centrifugal pump. As submersible pumps, they assure reliable operation even with considerable water depth. As multistage pumps they assure high flows, high heads, stable performance curves.

Ready to install, stainless steel monoblock submersible pump.
Complete with:
– motor with built-in capacitor and thermal overload protector
20 m long power cable.

This product comes with a Non-return valve (VR1.25) and a 1 1/4” Connector (0710381).


Stainless Steel AISI 304 Delivery body & External Sleeve, complete with threaded delivery port in compliance with ISO 228/1
Noryl FE1520PW Diffusers
Stainless steel AISI 304 Pump Shaft
Stainless Steel AISI 304 motor sleeve
Lexan 141-R Impellers
Stainless steel motor shaft EN 10088-3 – 1.4104
Power Supply: 230V Single Phase (230/1/50)
Ports: 1 1/4″


Flow rate up to  100l/min (6 m³/h)
Head up to 128m


Maximum liquid temperature 35 °C
Maximum sand content 150 g/m³
Maximum immersion depth of 60 m with a sufficiently long power cable
Vertical and horizontal installation
Starts/hour: 20 at regular intervals
Continuous service S1

Other Items you may wish to purchase with this product:

Pressure vessels
Pressure switches
Additional Cable

Additional information

Weight 12.5 kg
Dimensions Length: 100 mm Width: 100 mm Height: 705 mm

Performance Data


Additional Information



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