self-cleaning inlet filter
The Intelligent Inlet Filter: Continuous Self-Cleaning for Pump Protection
Modern fluid systems, especially those handling large volumes of water or containing solids, face a persistent challenge: clogged pumps caused by filter screens blocked with debris. An innovative solution to this problem is the intelligent inlet filter—a technology that utilizes an internal rotor to maintain a clean and efficient filtration process.
How Does It Work?
At the heart of the intelligent inlet filter is an internal rotor mechanism. Powered either by a small off-take from the main pump flow or, in some designs, a dedicated backwash pump, this rotor continuously spins, washing the filter screen from the inside out. Typical designs have the rotor making a full clean of the filter mesh every half second, or about twice per second. This rapid and constant movement ensures that no solids, weeds, or debris can build up on the filter mesh, keeping the entire surface clear and functional.
Key Benefits
- Prevents Pump Blockage: The continuous self-cleaning action keeps the filter mesh free from clogging, ensuring pumps operate efficiently, even in water with high levels of suspended solids.
- Reduces Downtime and Maintenance: By eliminating manual screen cleaning and reducing the risk of pump failure due to blockages, these filters save time and maintenance costs.
- Handles Challenging Water Conditions: Whether in raw water intake, process water loops, irrigation, or dewatering applications, the intelligent filter can tackle conditions that would quickly overwhelm traditional filters.
- Energy Efficiency: Using a portion of the filtered water to power the cleaning rotor means no external power source is required for the self-cleaning mechanism, leading to lower operational costs.
- Easy Removal of Water and Solids: By preventing solids from entering the pump system, these filters also make downstream removal of water and settled solids simpler and more effective.
Applications
- Surface and submersible pump protection
- Industrial water treatment
- Agriculture irrigation systems
- Wastewater and effluent management
- Nanobubble generator systems
Links
The RF600 series are industrial self-cleaning intake strainers for large pump suction lines, handling 1,500 to 4,600 LPM. An internal backwash rotor uses a fraction of pump output to continuously clear the stainless steel mesh - no manual cleaning, no settlement tanks. Available in SUS304 and SUS316 with mesh apertures from 315 μm to 6 mm.
The RF200 to RF400 series are self-cleaning pump inlet filters for surface-mounted pumps, handling 220-1000 LPM with mesh options from 50 micron to 6 mm. A patented backwash rotor powered by filtered pump output keeps the screen clear continuously - no manual cleaning required. SUS316 cage construction throughout.
The small pump inlet filter series offers self-cleaning filtration at 30, 60, and 90 LPM. Three configurations - single, duplex, and triplex - share the same backwash rotor technology. Suitable for pond pumps, irrigation, aquaculture sample lines, and industrial process filtration. Choose mesh sizes of 60, 115, or 250 μm.