RUBI Range Submersible Pumps

From £10,680.00

RUBI filterpumps are extremely tough heavy duty filterpumps, suitable for mining, quarrying and heavy industrial applications.  These filterpumps are cast iron with stainless steel intake filters.  The powerful three phase motors have thermal overload protection and the intake screens are available in a range of mesh sizes.

The Rotorflush RUBI Range of submersible filter pumps with integral self-cleaning intake screens offer fine or coarse filtration while pumping up to 1000 litres a minute and provide the same low maintenance and efficient intake screening of our smaller filter pumps.

As with all our products RUBIs use Rotorflush's unique self-cleaning intake filter technology to deliver an uninterrupted supply of water while a continuous backwash keeps the intake, pump and other downstream equipment blockage free.

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Key Features

  • Hard ductile iron casing, cast iron motor frame
  • Stainless steel filter mesh and cage
  • Internal overload monitoring (thermistors)
  • Pump and filter in one unit screening from 100 micron to 6 mm
  • 60 cubic metres per hour maximum flow
  • EA Eel Regulation compliant up to 32 m3 / hour (fitted with 2 mm mesh)
  • Operates down to 50m depth
  • High reliability, low maintenance, easy to install and use
  • Reduced capital, installation and maintenance costs

RUBI Range Submersible Pumps

Models & Specification

RUBI Range Submersible Pumps with Built-in Self-cleaning Intake Screens

The RUBI range is a range of industrial medium and high pressure self-cleaning filterpumps.  These all cast iron and steel filterpumps combine pumping and screening and are ideal for use in harsh water conditions. This is due to RUBI filterpumps being based around extremely durable Tsurumi pump motors.

RUBI Range submersible Pumps have self-cleaning intakes that can be fitted with a range of mesh sizes:

  • 115 or 300 micron nylon filter mesh
  • 100 or 315 micron stainless steel sintered filter mesh
  • 1mm or 2mm woven stainless steel mesh
  • 3mm or 6mm perforated steel mesh.


In contrast to nylon filter mesh which needs renewing at intervals, stainless steel mesh can be pressure washed and is therefore ideal for more challenging environments. The RUBI range filterpumps can be fitted with 316 stainless steel self-cleaning intakes for heavy duty use.

RUBI LH25.5W 400R heavy duty submersible pump with integral self-cleaning intake strainer

Rotorflush RUBI LH25W-400AR heavy duty submersible pump with self-cleaning filter and stand
LH25W-400AR RUBI Industrial Filterpump with Stand

 RUBI LH25W-400AR submersible pump with built-in self-cleaning intake strainer
LH33-400AR RUBI Heavy Duty Filterpump

LH311W-400AR RUBI Heavy Duty Filterpump

RUBI Range Submersible Pumps –  Performance and Power


RUBI Model Volts Hz Output kW Rated Current Amps Outlet Max L/min Max Head (metres) Manual or Auto Phase
LH23-400R 400 50 3 7 50mm 600 40 Manual Three
LH33-400R 400 50 3 7 50 mm 940 20 Manual Three
LH25.5W-400AR 400 50 5.5 11.5 50 mm 490 65 Manual Three
LH311W-400AR 400 50 11 22.5 80 mm 700 81 Manual Three
LH322W-400AR 400 50 22 40 80 mm 940 102 Manual Three
LH430W-400AR 400 50 30 55 100 mm 940 123 Manual Three


Rotorflush RUBI LH311W-400AR industrial submersible pump with self-cleaning strainer


RUBI Range submersible pumps have three phase motors and are fitted with self-cleaning suction intake screens.

NB: It is very important that three phase motor filterpumps are connected to their power source correctly, to ensure that the pump motor runs in the right direction. When pumps run backwards they are inefficient and the motor may be damaged. To see how to test that the pump is wired correctly watch this video.

Please note that we strongly recommend the use of Control Panels and / or a Din Rail mounted Cos Phi Load Monitor with all 3 phase models to prevent damage to pumps.

Installing adequate load monitoring is a condition of our guarantee for these products.


RUBI Range Submersible Pumps – Performance Curves (click images to enlarge)

 Performance curves for RUBI LH23-400AR submersible pump with integral self-cleaning suction intake screen.
Performance curves for RUBI LH33-400AR submersible filterpump with integral self-cleaning inlet filter
Performance curves for RUBI LH25.5W-400AR filterpump with integral self-cleaning suction intake filter.
Performance curves for RUBI LH311W-400AR high pressure centrifugal submersible pump with integral self-cleaning suction intake screen.
Performance curves for RUBI LH322W-400AR High pressure centrifugal submersible pump with integral self-cleaning suction intake screen.

Performance curves for RUBI LH430-400AR high pressure centrifugal submersible pump with integral self-cleaning suction intake filter


RUBI Range Submersible Pumps – Dimensions

Approximate Dimensions LH23-400AR LH33-400AR LH25.5W-400AR LH311W-400AR LH322W-400AR LH430W-400AR
H1 Total Height mm 816 816 1000 1180 1484 1625
H2 Filter Height mm 270mm all models
D1 Filter Diameter mm 420mm all models
D2 Pump Diameter mm 185 185 240 270 330 330
CWL Min Depth mm 400 400 420 450 550 550
Output mm
50mm male 50mm male 50mm male 80mm male 80mm male 100mm male
Dry Weight (Kg) 65 61 105 150 329 344

Pump Shown LH33-400RRUBI submersible pump with 1000 ltres / min 400mm diameter self-cleaning suction intake screen, dimensions diag.

Self Cleaning Intake Filter Construction

Choice of filter mesh for Rotorflush self-cleaning pump filters



Filter screen area 2500 cm2
Screen sizes standard 100 and 315 micron, 1mm, 2mm, 3mm and 6mm
Screen material Nylon mesh, polypropylene insert (up to 300 micron)
Sintered stainless steel mesh (up to 315 micron)
Stainless steel woven mesh (1mm and 2mm)
Stainless steel perforated mesh (3mm and 6mm)
Impeller extension shaft Stainless Steel
Impeller Stainless steel
Rotor ABS  (Acrylonitrile Butadiene Styrene)
Rotor Bearings Silicon Carbide
Filter cage Stainless Steel
Cleaning Jets Natural Rubber Jets,  stainless steel clips

Rotorflush filterpumps work best with good clearance all around the self-cleaning intake filter.


We can fit stands to suit.




Please Note: Our filters are designed for use in dirty water or liquids with a viscosity close to that of water. Our filters and filterpumps are NOT suitable for use in raw sewage or any other dirty water which contains oils or fat.



RUBI Range Submersible Pumps from 600 to 1000 litres / min

Submersible pumps with integral self-cleaning suction intake filters (three phase 415v 50Hz) 
Filter-pump Model No. Prices
RUBI LH23-400
RUBI LH33-400 £10,760.00
RUBI LH25.5W £14,615.00
RUBI LH311W £24,285.00
All prices are exc. of VAT and Carriage


NB – there are other larger models of the RUBI filter pumps available – POA


Please note:

All our products are manufactured to order

Delivery is by carrier.  Contact us for latest lead times.

Carriage and packing charges are extra.

Contact us – use this form or call 0044 (0)1297 560229

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    Below is the technical and maintenance information for the RUBI Range Submersible Pumps

    ...Frequently Asked Questions

    We know you'll have plenty of questions about how things work, what kind of questions to ask us and what we'll ask you. We also have downloadable information across the range of our products as well as a specific information on Filtration Knowledge.

    Read the FAQs