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.
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.
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.
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.
RF600 Self-cleaning Intake Strainer – Construction
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
Downloads
Below is the technical and maintenance information for the RF600LW Self-cleaning Eel Screen & Intake Strainer
RF600R self-cleaning intake strainer provides industrial strength, low maintenance filtration for surface mounted pumps. They are coarse screened filters with a capacity of 90 m3 to 275 m3 per hour.
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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.