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RF600LW Self-cleaning Eel Screen & Intake Strainer

From £8,925.00 GBP

The RF600LW self-cleaning Eel Screening intake strainers provide industrial strength, low maintenance filtration for surface mounted pumps. They are coarse screened filters fitted with 1 mm - 6 mm stainless steel mesh screens. When fitted with 2 mm mesh they are an ideal Eel screen.

The RF600LWs are extremely tough stainless steel self-cleaning basket filters that protect pumps and other connected equipment from blocking and blinding when pumping dirty water.

Our award-winning self-cleaning mechanism in the filters provides a continuous backwash keeping the filter mesh free of weed, debris and other suspended solids, and their low intake velocity protects elvers, and other aquatic wildlife. Eel Screens are EA Eel Regulation compliant.

The RF600LWs can handle 160m3 to 730 m3 per hour.

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Key Features

  • 316 Stainless steel filter mesh
  • Filters from 1mm to 6mm
  • Reliable, easy to install and use
  • 730 cubic metres per hour maximum flow
  • 365 cubic metres per hour maximum flow @ 0.1 metres / sec
  • Capital, installation and maintenance costs reduced
  • All stainless steel construction
  • Differential pressure switch for protection
  • Option for marine grade Stainless Steel.

RF600LW Self-cleaning Eel Screen

Description

RF600LW Self-cleaning Eel Screen & Intake Strainer

Rotorflush RF600LW Self-cleaning Eel Screen Intake Strainers have been specifically designed to meet regulations for the Protection of European Eels. Anyone pumping more than 20 m3 of water per day from rivers, lakes and reservoirs must ensure that measures are in place to protect eels and elvers. Our Eel Screens are designed for use on the suction hose of surface mounted pumps. They can also be used as gravity fed intakes, as long as a pump is used to supply the backwash.

The RF600LW Self-cleaning Eel Screen Intake Strainers can deliver a maximum of 160 m3/ hour – 730 m3 / hour through tensioned woven Stainless Steel mesh. The maximum flow rates for RF600LW screens for elvers and glass eel protection range from 81 m3 / hour – 366 m3.  This is so that the intake velocity of the water does not exceed 0.1 metres a second.

Read this article in Water Magazine about our Innovative Approach to Eel Screening

RF600LW Self-cleaning Eel Screen - how it works

The RF600LW range of Eel screens can be fitted with 316 grade Stainless Steel filter mesh, mesh aperture sizes can be from 1 mm to 6 mm. The maximum open area these screens offer is 60% when fitted with 2 mm aperture woven steel mesh (US 10 Mesh). The mesh is under tension and forms the body of the screen, maximising the mesh area.

Rotorflush self-cleaning eel screens use a proportion of your pump’s output to supply a feed to an internal backwashing rotor. The self-cleaning mechanism is powered by taking a ‘T’ off the already filtered pump output to supply the Rotorflush internal rotors. The cleaning rotors continuously backwash the mesh screen pushing away anything that might cause it to block.

Our self-cleaning Eel Screens can also be gravity fed, but will then need a small backwash pump to provide a water supply to the backwash jets.

Each RF600LW screen is fitted with a differential pressure switch to monitor the pressure inside and outside the screen, and to switch off the main pump if the pressure difference is too great. The switch protects the screen mesh from damage in the unlikely event of a sudden screen blockage. Having one correctly installed is a condition of our product guarantee.

All our filters and strainers use the same patented technology, providing an efficient self-cleaning backwash to keep their filter mesh clear and to protect aquatic life.

Models & Specification

RF600LW Self-cleaning Intake Strainer – General

There are eight models of RF600LW self-cleaning eel screens & intake strainers offering a broad range of capacities

Flow Rates and Capacities

 Rotorflush Model Filter screen Area cm2 Maximum Flow Rate m3/hr (net of backwash)** Eel Regulations
Flow rate (net of backwash)
m3/hr @ 0.1 m sec*		 Backwash Flow Rate m3/hr Backwash Pressure Mesh: 1 mm – 6 mm, max % Open Area
RF600-200LW 3,770 160 81 9 0.4 bar 60
RF600-300LW 5,655 240 122 13.5 0.4 bar 60
RF600-400LW 7,540 320 162 18 0.4 bar 60
RF600-500LW 9,425 400 203 22.5 0.4 bar 60
RF600-600LW 11,310 490 244 27 0.4 bar 60
RF600-700LW 13,195 570 285 31.5 0.4 bar 60
RF600-800LW 15,080 650 325 36 0.4 bar 60
RF600-900LW 16,965 730 366 40.5 0.4 bar 60

**Maximum flow rates are those for screens fitted with 60% open area 2 mm (US 10) mesh
**Approach velocity recommended for compliance with Regulations for the Protection of European Eels.

Note, EPA Rule 316(b) for final cooling water intakes recommends an intake velocity of not greater than 0.5 ft per second (0.15 metres a second). For this intake velocity, add half as much again to the Eel Regulations Max Flow rate in the table above.

RF600-600LW Self-cleaning Eel Screen for Raw Water Intake

Rotorflush filters can customise these filters. Mesh types and outlet flange sizes can be varied to suit particular applications. Please contact us to discuss your requirements.

RF600LW Self-cleaning Intake Strainer – Dimensions

Model H1 Total Height mm H2 Mesh Height mm D1 Total Diameter mm D2 Mesh Diameter mm D3 Flange Diameter mm Approx Weight kgs
RF600-200LW 555 200 750 600 340 80
RF600-300LW 655 300 750 600 340 90
RF600-400LW 755 400 750 600 340 100
RF600-500LW 855 500 750 600 340 110
RF600-600LW 955 600 750 600 340 120
RF600-700LW 1,055 700 750 600 340 130
RF600-800LW 1,155 800 750 600 340 140
RF600-900LW 1,255 900 750 600 340 150

RF600LW Eels Screens Installation RSPB
‘Old Skool’ RF600LW Installation

RF600 Self-cleaning Intake Strainer – Construction

 RF600 Strainer cutout showing rotor

Filter Component Construction
2 mm aperture filter mesh 316 Stainless Steel or Phosphor Bronze
Filter uprights 304 or 316 Stainless Steel
Filter top and bottom plate 304 or 316 Stainless Steel
Top and bottom plate bolts & fastenings 304 or 316 (A2 or A4)  Stainless Steel
Tensioning nuts, M20 x 6, 15 mm thick Phosphor Bronze PB 102
Cleaning rotor 304 or 316 Stainless Steel
Cleaning jet restrictors ABS
Rotor bearings Acetal
Top and bottom rotor bearings 304 or 316 Stainless Steel
Rubber jets Natural Rubber
Rubber jet clips 304 or 316 Stainless Steel
Lifting eyes 304 or 316 Stainless Steel
Top flange 304 or 316 Stainless Steel, standard is DN 200 PN 16, other sizes may be fitted
Backwash connection 316 Stainless Steel, 3” BSP
Tensioning assemblies Hi-tensile steel, Delta Tone 9000® inorganic, non – electrolytically applied micro layer zinc – Lamella flake coating

Note: 316 Marine grade Stainless Steel is an option for all RF600LW filters

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.

Ordering

Rotorflush RF600LW Self-cleaning Intake Strainer – up to 202 litres per second
Model Price £ (GBP – exc. VAT)   Model Price £ (GBP – exc. VAT)
RF600-200LW £8,925.00 RF600-600LW £10,520.00
RF600-300LW £9,325.00 RF600-700LW £10,825.00
RF600-400LW £9,540.00 RF600-800LW £11,215.00
RF600-500LW £10,050.00 RF600-900LW £11,580.00

Please state filter mesh size:

1 mm – 6 mm woven Stainless Steel mesh is available

Standard fittings are 8″  PN 16 outlet, and 3″ inch BSP inlet to the backwash.

Other flange sizes can be fitted

These filters can be manufactured using 316 Stainless Steel for marine use, please enquire.

Please note:

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

Carriage and packing charges are extra.

Can’t find what you need? Want to talk with us directly?

We’re here to help. Call us on +44 (0)1297 560 229



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