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Filtration for the Water Industry
Rotorflush self-cleaning filtration products are used extensively in the water industry for waste and raw water treatment.
- Self-cleaning Wash Water Pumps
- Low maintenance Filtration for Online Analysers
- Allows the Use of High Pressure Pumps for Wash Water
- Eel Regulation Compliant Raw Water Intake
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Rotorflush in the Water Industry
The UK Water Industry makes extensive use of Rotorflush self-cleaning filters and filter pumps. Our products are used for:
Rotorflush Filterpumps™ for Wash Water at Treatment Works
Waste water Intake screens frequently block and clog. Trash and intake screens are cleared using high pressure wash water. As the source of this water is on the dirty side of the STW, a pump that will screen and pump final effluent without blocking is essential for low maintenance running of these plants.
And that's what Rotorflush Filterpumps™ do.
The water they pump is screened and filtered on intake to keep spray bars and nozzles from clogging with suspended solids, weed or debris. High pressure centrifugal submersible pumps provide an uninterrupted flow of screened water (315 microns, 1 mm or 2 mm aperture mesh), while a continuous backwash keeps debris off the intake mesh.
All Rotorflush self-cleaning filters and submersible pumps filter directly from the water source. Therefore, pumps with self-cleaning intakes can be suspended in secondary and final effluent. Pumping and filtering are combined, and the filters self-clean as the pumps operate.
Rotorflush submersible filter pumps offer a range of capabilities and installation options for providing waste water treatment wash water. Because of this versatility, many waste water treatment projects have integrated our products into their designs.
Self-Cleaning Analyser Filters for Online Analysers and Dosing Pumps
Water Sampling and Analysis. There is a constant need in the water industry to monitor water quality at all stages of water treatment. Our smaller filter pumps and Analyser Filter Systems protect analytical equipment at water monitoring sites. They provide protection to equipment to help ensure continuous monitoring and are very low maintenance.
Other water and utility companies internationally are also discovering the cost and maintenance benefits of our products. We provide innovative, low maintenance, robust and reliable filtration for raw water, secondary and final effluent, and we are working to develop products for effective filtration in raw sewage.
Over 300 Rotorflush RF100AN-Q Analyser Filter Systems have been supplied to the water industry in the UK and abroad, providing effective as low maintenance filtration for online analysers.
The system is specifically designed to provide filtered samples for analysers and dosing pump systems with almost no maintenance. Sample water is filtered down to 60 microns.
It is excellent for filtering difficult samples contaminated with suspended solids, and is used to supply chlorine and ammonia analysers and other water monitoring equipment.
Screening at Raw Water Intakes
Environmental legislation for the protection of eels and fish now applies to many uses of raw water.
Intake screens at water treatment works now need to ensure that young eels and elvers are not harmed or trapped as water is abstracted for drinking water use.
The regulations allow for screening up to 2 mm aperture size, and constrain intake velocities to as low as 0.1 metres a second. Given the debris, leaves and weed prevalent in our waterways, the propensity for blockage is high.
Rotorflush's self-cleaning intakes on all our products allow 2 mm screening of raw water while keeping the screen mesh clear. Our larger self-cleaning intake screens are all stainless steel, and are designed with a large open area relative to screen size for low intake velocities and have a continuous backwash to prevent debris and wildlife from impingement on the intake screen.
Our eel screens enable our customers to draw water and comply with current regulations for eel and fish protection.
As well as meeting regulatory requirements, these very low maintenance screens have the added benefit of reducing the load of particulate and debris further down the line.
Case Study
Trility were able to wash down the screen and were able to install and remove the screen easily when needed. They were impressed with the performance of the unit as a cost-effective alternative to inline screening or other filtering processes.
C J Hiscock, Sales
Rotorflush Filters LtdTrility, a water utility service provider operating in Australia, is a company that covers the full life cycle of water all the way through to waste water treatment. They approached us to trial a Rotorflush waste water treatment filter for the Redcliffe Sewage Treatment Plant in South East Queensland over a two-month period.
Trility concluded that the two-month trial was a success and that, in the absence of any access to screened wash water, the Rotorflush intake screen provided a viable alternative to in-line and other filtering options where these could not be used.
FAQs About Rotorflush Products for the Water Industry
Rotorflush self-cleaning filtration and screening products are used for separating solids from dirty and contaminated water so that pumps, spray bars, irrigation and other equipment does not block or clog. Typical uses within the water industry are:
- Screening and pumping wash water from final effluent
- Screening sample water for analysers and water quality monitoring
- Eel screening at raw water intakes
Rotorflush filterpumps and strainers are for use directly in a water supply, pumping and screening are effectively combined for low maintenance water screening on intake.
Dawn over waste water treatment works
All of our self-cleaning intake screens are specified to suit required flow rates.
Filter pumps are recommended based on the flow rate and pressure needed, taking into account any pressure losses through your set-up.
Intake strainers and screens are specified according to the maximum flow through that is required.
Consideration should be given to what mesh size you need - top tip, go for the largest mesh size you can get away with to minimise maintenance.
Lots of Rotorflush Products to Choose From
Yes, environmental regulations may determine the type of filter pump or strainer to be used. Products can be sized to account for Eel Regulations or EPA rule 316(b) if applicable, so that intake velocity and mesh size meet regulatory requirements.
Still Life with Fish, 1864 by Edouard Manet
We are an innovative and forward-looking company and are actively engaged in trials to enable effective screening of raw sewage. Watch this space. At the moment, though, use of our products in raw sewage is not recommended.
The grease and oil in raw sewage combines readily with fibrous material and is extremely difficult to screen once it begins to accumulate. This is how fat bergs are formed. Screened sewage is better, and final effluent is OK.
Some people, however, have gained a benefit in very difficult water conditions by using our screens in combination with a rigorous maintenance regime - see this Case Study.
Redcliff Sewage Treatment Plant
Yes – because our products pump and filter directly from a dirty water source, there is less need for expensive in-line filtration.
All our products have built-in self-cleaning back-washes that prevent intake screens from blocking, keep pumps clear and protect other connected equipment. This reduces maintenance, minimises downtime and can extend the life of pumps. Screening water for reuse can also cut costs.
Relaxing sunset to watch while saving time and money
Browse Products
Pebble Filterpumps™
Rotorflush Pebble Filterpumps™. Pebble submersible filter pump with built-in self-cleaning filter on the pump suction intake. It has a maximum output of 80 L/min and a max head of 6m. They are our smallest filter pump, ideal for sampling, eel passes, small water features, and domestic use.
- Maximum Output 80 L/min
- Maximum Head 6 m
Price from: £910
RF100AN-Q Analyser Filter System
The RF100AN-Q Analyser Filter System. Designed to provide filtered sample water for analysers and dosing pump systems. The system incorporates a Rotorflush self-cleaning filter, to protect equipment and ensure low maintenance sampling and monitoring. It is excellent for filtering difficult samples contaminated with suspended solids for supply to chlorine, ammonia and other analysers.
- Filter Samples Up to 16 L/Min, 8 US GPM
- Screen at 60, 115 or 250 microns
- US Mesh 230, 120 and 60
Price from: £3,490
Omnia Filterpumps™
Rotorflush Omnia Filterpumps™. Submersible pumps with built-in pump suction self-cleaning filters. Single phase low head filter pumps - up to 220 litres a minute, 45 US GPM. Ideal for sampling and small open loop heat pump systems.
- Maximum Output 220 L/ Min, 45 US GPM
- Maximum Head 11 m, 25 ft
Price from: £2,260
Idrogo Filterpumps™
Rotorflush Idrogo Filterpumps™. Medium-head submersible filter pumps with built-in self-cleaning filter on their intake. Stainless steel bodied pumps, ideal for domestic and small scale industrial use, delivering up to 120 litres per minute, maximum head 80 metres.
- Maximum Output 120 L/Min
- Maximum Head 80 m
Price from: £3,045
Nauti Filterpumps™
Rotorflush Nauti Filterpumps™. High-head submersible filter pumps with built-in self-cleaning filters on the suction intake. They have a maximum output of 220 litres a minute, and can pump up to 10 bar. Pumping and filtration are combined. All stainless steel construction.
- Maximum Output 220 L/Min
- Maximum Head 103 m
Price from: £2,915
Nauti 60Hz Filterpumps™
Rotorflush Nauti Filterpumps™. Now available in 60 Hz supple High-head submersible filter pumps with built-in self-cleaning filters on the suction intake. They have a maximum output of 60 USGPM, and can pump up to 375 ft. Pumping and filtration are combined. All stainless steel construction.
- Maximum Output 60 USGPM
- Maximum Head 375 ft
Price from: £2,840
RF800AR Self-cleaning Strainer
RF800AR Self-cleaning Industrial Filters and Strainers. Our RF800AR self-cleaning intake strainers are for attachment to the suction hose of surface mounted pumps. These tough, industrial, all stainless-steel construction mechanical filters can deliver up to 870 m3/hour, 3830 US GPM
- Screen up to 870 m3 / hour, 3830 US GPM
- Filter from 6 mm down to 1 mm
- US Mesh equivalent 3 down to 18
Price from: £0
RF600LW Self-cleaning Filters
Self-cleaning Industrial Water Filters and Strainers. The RF600LWs are robust stainless steel self-cleaning basket filters that protect pumps and other equipment from blocking and blinding when pumping dirty water. They are fitted with 1 mm - 6 mm stainless steel mesh screens, handling up to 730 m3/hour, 3,215 US GPM.
- Screen Up to 730 m3 / Hour, 3215 US GPM
- Filter From 6 mm Down to 1 mm
Price from: £9,845
RF1100AR Self-cleaning Strainer
Self-cleaning Industrial Water Filters and Strainers. RF1100AR self-cleaning intake strainers are for attachment to the suction hose of surface mounted pumps. These tough, 1100 mm diameter, industrial, all stainless-steel construction, mechanical filters can deliver up to 1,265 m3/hour, 5,570 US GPM
- Screen up to 1265 m3/hour, 5570 US GPM
- Filter from 6 mm down to 1 mm
- US Mesh equivalent 3 down to 18
Price from: £0
Why Rotorflush?
UK Designed and Manufactured
Talk to our friendly team of engineers to discuss your design requirements.
- Built to your water output
- Filter down to 3 microns
- Hand built in the UK
Leading Water Filter Experts
Talk to our friendly team of engineers to discuss your design requirements.
- Industry experts for 30 years
- Supplied to over 200 industries, including waste water treatment
- Supplied worldwide
Worldwide Delivery and Service
Through our worldwide distribution network, we offer the ability to:
- Deliver filter pumps worldwide
- Help service your filter pump
- Repair broken filter pumps
Talk to an Expert About Your Project
Call us now on 01297 560 229
or Email sales@rotorflush.com and a member of our expert, friendly team will call you back and find the self-cleaning filter, strainer or filter pump to suit your needs.
- We work with you to identify your issues
- We can design & build a custom solution
- We can deliver our solution worldwide
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Get the Filter Pump Your Project Requires. Talk to Our Friendly Team
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