Topaz 400AR Submersible Pumps

From £7,915.00

Rotorflush Topaz 400AR filterpumps are low and medium head filterpumps suitable for many industrial applications.

Their 400mm diameter stainless steel self-cleaning intake screen can be manufactured from 304 or 316 stainless steel.  The powerful three phase motors have a thermal cutout and the intake screens are available in a range of mesh sizes.

The Topaz range of filterpumps use Rotorflush's unique self-cleaning intake filter technology. They deliver an uninterrupted supply of water while a continuous backwash keeps the intake, pump and other downstream equipment blockage free.

These filterpumps offer fine or coarse filtration while pumping up to 1000 litres a minute. They are designed for low maintenance continuous use in dirty water conditions.


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Key Features

  • Stainless steel motor casing
  • Stainless steel intake and filter mesh
  • Chromium iron pump impeller
  • Internal overload monitoring (thermal cutout)
  • Pump and filter in one unit, screening from 315 microns to 3 mm
  • Effective low maintenance filtration
  • 60 cubic metres per hour maximum flow
  • Operates down to 20m depth
  • EA Eel Regulation compliant up to 32 m3 / hour (fitted with 2 mm mesh)
  • Reduced capital, installation and maintenance

Topaz Range 400AR Submersible Pumps

Models & Specification

Topaz 400AR Submersible Pumps with Self-cleaning Intake Filters –  up to 1000 litres minute

Rotorflush Topaz filterpumps are low to medium pressure general purpose submersible pumps with integral self-cleaning suction intake filters.  These filterpumps benefit from a cast iron upper cover, a strengthened AIS1304SS motor case and a 400mm stainless steel self-cleaning intake, capable of delivering up to 1000 litres minute of filtered water.  They combine pumping and screening and are ideal for use in difficult and dirty water, and add greater breadth to the capacity and pressure of the filterpumps we offer.

Topaz Range 400AR submersible pumps have powerful 400mm self-cleaning intakes to prevent debris entering the pump and keep debris off the filter screen. They 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 perforated steel mesh.


Stainless steel mesh is ideal for more challenging environments. Topaz 400AR filterpumps are suitable for heavy duty use and can also be fitted with 316 stainless steel self-cleaning intakes.

Use Rotorflush filterpumps in difficult conditions for filtering and pumping dirty water.


Performance and Power – Topaz 400AR Submersible Pumps

 Topaz Model Volts Hz* Output kW Rated Current Amps Outlet mm Max m3 / hr Max Head (metres) Phase
TKS21.5 – 400 400 50 1.5 3.5 50 30 21 Three
TKS31.5 – 400 400 80 1.5 3.5 80 42 14 Three
TKS22.2 – 400 400 50 2.2 5.0 50 32 25 Three
TKS32.2 – 400 400 80 2.2 5.0 80 55 18.5 Three
TKS23.7 – 400 400 50 3.7 7.7 50 36 32 Three
TKS33.7 – 400 400 80 3.7 7.7 80 60 29 Three

*60 Hz versions may be available – please ask.

Please note as standard these filterpumps are fitted with 20 m cable


Topaz 400AR 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.

Performance Curves for Topaz 400AR Filterpumps (click images to enlarge)

Low and Medium Head Rotorflush filterpumps filtering and pumping up to 500 litres a minute.
Low and Medium Head Rotorflush filterpumps up to 500 litrres a minute. hassle free use in dirty water.
Medium size and pressure submersible pump with self-cleanig suction intake to prevent blockage in dirty water



Dimensions – Topaz 400AR Filterpumps

Model H1 Height F Intake Height D1 Intake Diameter D2 Pump Diameter W1 Min Depth Outlet Weight
TKS21.5-400 733 270 420 240 400 50 57
TKS31.5-400 733 270 420 240 400 80 57
TKS22.2-400 733 270 420 240 400 50 60
TKS32.2-400 733 270 420 240 400 80 60
TKS23.7-400 685 270 420 300 400 50 78
TKS33.7-400 685 270 420 300 400 80 78

Rotorflush Topaz 400AR submersible pump with integral self-cleaning pump filter, medium pressure, high flow rate, Generic Dimensions drawing


Self Cleaning Intake Filter Construction

Perforated stainless steel, woven stainless steel of nylon filter mesh can be fitted to Topaz 400AR Submersible Pumps


Filter screen area 2500 cm2
Screen sizes standard 300 micron, 315 micron, 1mm, 2mm, and 3mm
Screen material Nylon mesh, polypropylene insert (300 micron)
Sintered stainless steel mesh (315 micron)
Stainless steel woven mesh (1mm and 2mm)
Stainless steel perforated mesh (3mm)
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.


Self-cleaning filterpump on a stand to keep intake clear of silt and debris.

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.


Topaz 400AR Submersible Pumps from 500 to 1000 litres / min

Submersible pumps with integral self-cleaning suction intake filters (three phase 415v 50Hz)
Topaz Model No. TKS21.5-400 TKS31.5-400 TKS22.2-400 TKS32.2-400 TKS23.7-400 TKS33.7-400
Price £7,915.00 £7,925.00 £7,960.00 £7,980.00 £8,305.00 £8,315.00

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 Topaz 400AR 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