RUBI Range Submersible Pumps

From £7,720.00

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
  • Perforated Stainless steel filter mesh and cage
  • Internal overload monitoring (thermistors)
  • Filter mesh 100 micron to 6mm
  • Very low maintenance filtration
  • 60 cubic metres per hour maximum flow
  • Operates down to 50m depth
  • Chromium iron pump impeller
  • High reliability and easy to use
  • Reduced capital, installation and maintenance

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 ModelVoltsHzOutput kWRated Current AmpsOutletMax L/minMax Head (metres)Manual or AutoPhase
LH33-400R400503750 mm94020ManualThree
LH25.5W-400AR400505.511.550 mm49065ManualThree
LH311W-400AR400501122.580 mm70081ManualThree
LH322W-400AR40050224080 mm940102ManualThree
LH430W-400AR400503055100 mm940123ManualThree


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 and efficiency curves for RUBI LH23-400AR submersible pump with integral self-cleaning suction intake screen.
Performance and efficiency curves for RUBI LH33-400AR submersible pump with integral self-cleaning suction intake screen.
Performance and efficiency curves for RUBI LH25.5W-400AR submersible pump with integral self-cleaning suction intake filter.

Performance and efficiency curves for RUBI LH311W-400AR high pressure centrifugal submersible pump with integral self-cleaning suction intake screen.
Performance and efficiency curves for RUBI LH322W-400AR High pressure centrifugal submersible pump with integral self-cleaning suction intake screen.
Performance and efficiency curves for RUBI LH430-400AR high pressure centrifugal submersible pump with integral self-cleaning suction intake filter


RUBI Range Submersible Pumps – Dimensions

Approximate DimensionsLH23-400ARLH33-400ARLH25.5W-400ARLH311W-400ARLH322W-400ARLH430W-400AR
H1 Total Height mm8168161000118014841625
H2 Filter Height mm270mm all models
D1 Filter Diameter mm420mm all models
D2 Pump Diameter mm185185240270330330
CWL Min Depth mm400400420450550550
Output mm
50mm male50mm male50mm male80mm male80mm male100mm male
Dry Weight (Kg)6561105150329344

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 area2500 cm2
Screen sizes standard100 and 315 micron, 1mm, 2mm, 3mm and 6mm
Screen materialNylon 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 shaftStainless Steel
ImpellerStainless steel
RotorABS  (Acrylonitrile Butadiene Styrene)
Rotor BearingsSilicon Carbide
Filter cageStainless Steel
Cleaning JetsNatural 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£7,775.00
RUBI LH25.5W£9,605.00
RUBI LH311W£13,780.00
All prices are exc. of VAT and Carriage




Please note:

All our products are manufactured to order

Delivery is by carrier and is usually between 7 and 14 days from order depending on product and availability.

Carriage and packing charges are extra.

115 or 300 micron nylon filter mesh, 1mm and 2mm woven stainless steel, or 3mm and 6mm perforated stainless steel mesh can be fitted. Sintered stainless steel 115 and 300 micron mesh screens are plus £265.00p (GBP)  per filter-pump

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



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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.

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