Sapphire Range 400AR Filterpumps

From £6,315.00

Rotorflush Sapphire 400AR filterpumps are general purpose high pressure submersible pumps with a built in self-cleaning suction intake screen.  The Sapphire range of filterpumps uses Rotorflush's unique self-cleaning intake filter technology while pumping at up to 200 bar.

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 cut-out and the intake screens are available in a range of mesh sizes.

These filter pumps offer fine (from 300 microns) to coarse (3mm) filtration. They can pump up to 1000 litres a minute and provide the same low maintenance and efficient intake screening of all our submersible filterpumps.

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Key Features

  • Cast iron motor casing
  • Stainless steel intake and filter mesh
  • Internal overload monitoring (thermal cutout)
  • High pressure (up to 20 bar)
  • Filter mesh 300 micron to 3mm
  • Very low maintenance filtration
  • 60 cubic metres per hour maximum flow
  • Operates down to 20m depth
  • 15m cable (longer cable can be fitted))
  • Reduced capital, installation and maintenance

Sapphire Range 400AR Filterpumps

Models & Specification

Sapphire Range 400AR Filterpumps – high pressure pumps  up to 1000 litres minute

Rotorflush Sapphire 400AR filterpumps are a range of medium to high pressure submersible pumps with 400mm diameter integral self-cleaning suction intake screens.  These tough submersible pumps are all cast iron with a 304 stainless steel outer casing and a 400mm 304 stainless steel self-cleaning intake. They deliver up to 1000 litres minute of filtered water which is screened as you pump.

They are ideal for use in water contaminated with debris and particulate. Sapphire Range 400AR filterpumps have self-cleaning intakes to keep debris off the filter screen and prevent it entering the pump. They can be fitted with a range of mesh sizes:

  • 100 or 315 micron stainless steel sintered filter mesh
  • 1mm or 2mm woven stainless steel mesh


All our filter mesh is 316 stainless steel.  Sapphire 400AR filterpumps are suitable for general purpose use where there is a need for medium to high pressure

Pumping contaminated and dirty water with high pressure centrifugal pumps is easy with Rotorflush self-cleaning filter products
High Pressure Sprinkler


Performance and Power – Sapphire Range 400AR Filterpumps

 Sapphire ModelVoltsHz*Output kWRated Current AmpsOutlet mm
Motor ProtectionMax m3 / hrMax Head (metres)Manual or AutoPhase
SXN10/2-2.2-400400502.25.450Built-in2838Manual3 phase
SXN25/1-2.2-400400502.25.465Built-in3723Manual3 phase
SXN10/3-3-400400503.07.250Built-in2851Manual3 phase
SXN25/2-3-400400503.07.265Built-in3733Manual3 phase
SXN12.5/3-4-400400504.08.850Built-in3057Manual3 phase
SXN25/2-4-400400504.08.865Built-in4043Manual3 phase
SXN15/3-5.5-400400505.511.750Built-in3267Manual3 phase
SXN25/3-5.5-400400505.511.765Built-in4064Manual3 phase
SXN25/4-7.5-400400507.515.765Built-in4284Manual3 phase
SXN25/5-9.2-400400509.219.165 –44104Manual3 phase
SXN20/3-11-4004005011.02265 –50106Manual3 phase
SXN20/4-15-4004005015.03165 –50142Manual3 phase
SXN20/5-18.5-4004005018.537.265 –50178Manual3 phase
SXN20/6-22-4004005022.04565 –50204Manual3 phase

*60 Hz versions may be available – please ask.

Sapphire submersible pump with self-cleaning intake filter Roptorflush
Rotorflush Sapphire SXN25/4-7.5-400 Filterpump

Sapphire Range 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 Sapphire 400AR Filterpumps

2.2 - 4.0 kW Sapphire Range 400AR performance curves
4.0 - 9.0 kW Sapphire Range 400AR performance curves
11.0 - 22.0 kW Sapphire Range 400AR performance curves



Dimensions – Sapphire 400AR Filterpumps

Sapphire ModelH1 Total Height mmF Filter Height mmD Filter Diameter mmD1 Pump Diameter mmW Min Depth mmDry Weight (Kg)

Sapphire Range 400AR General dimension diagram

Self Cleaning Intake Filter Construction

Rotorflush Sapphire Range 400AR submersible pumps can be fitted with nylon, woven stainless steel or perforated steel mesh self-cleaning intakes


Filter screen area2500 cm2
Screen sizes standard300 micron, 315 micron, 1mm, 2mm, and 3mm
Screen materialNylon 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 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.



Sapphire Range 400AR Submersible Pumps from 450 to 1000 litres / min

Submersible pumps with integral self-cleaning suction intake filters (three phase 415v 50Hz) 
Sapphire ModelPricesSapphire ModelPrices
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.


300 micron nylon filter mesh, 315 micron stainless steel mesh, 1mm and 2mm woven stainless steel, or 3mm perforated stainless steel mesh can be fitted.

Sintered stainless steel 315  micron mesh screens are plus £265.00p (GBP)  per filter-pump


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

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    Below is the technical and maintenance information for the Sapphire Range 400AR Filterpumps

    ...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