Filternox® self-cleaning filters require a minimum inlet pressure of 2 bar during the backflush cycle to ensure efficient and complete cleaning of the filter elements. Under normal filtration conditions, the operating pressure range depends on the project design, but maintaining at least 2 bar at the inlet is strongly recommended. For brush-cleaning systems, 1 bar is sufficient. Filternox® also provides solutions for systems operating below 1 bar.
Backflush water consumption depends on water quality, filtration area, filtration degree, cleaning mechanism, and operating pressure.
Yes. Screens are typically made of AISI 316L, Duplex, or Super Duplex stainless steel. Vacuum nozzles can be customized in plastic, stainless steel, or Duplex materials.
Yes. By selecting the appropriate stainless-steel grade, Filternox® filters are designed to operate reliably in seawater and corrosive environments.
Standard Filternox® designs operate safely at temperatures up to 95°C.
Yes. Being custom-designed, Filternox® filters can handle both variable flow conditions and intermittent operation without performance issues.
Initial pressure drop at nominal flow: < 0.03 bar
Backflush triggers when differential pressure reaches the preset limit (e.g., 0.5 bar).
Operation & Maintenance Questions
Under typical operating conditions, where backflushing occurs every two hours, Filternox® filters require preventive maintenance approximately once per year.
Only consumable components -such as seals and occasionally screens- generally need replacement.
Under normal operating conditions, where backflushing occurs every two hours, Filternox® filters are designed for a 20-year lifecycle, and with proper operation and routine maintenance, they often exceed this service life.
Routine maintenance can be performed by customer operators, as Filternox® systems are designed for ease of use.
Project & Installation Questions
No. Standard models do not require a concrete base. Filternox® can provide tailored mounting or skid solutions for special cases.
Key data includes:
Working pressure
Water source
Micron rating
Water analysis
Installation requirements
A sketch of the installation location is very helpful.
Production time varies by model, project complexity, and workload. Contact Filternox® with your reference details for an exact lead time.
Yes. Filternox® provides 3D CAD models, P&IDs, GA drawings, and other required documentation according to industry standards.
Commercial & Sustainability Questions
Filternox® patented technologies significantly reduce backflush discharge. Additionally, backflush water can be reused when desired.
Yes. Filternox® filters comply with major international standards.
The Filternox® patented double-effect brush and vacuum nozzle model is the ideal choice for cooling water applications.
By providing effective filtration and automatic cleaning, Filternox® filters prevent particle buildup on heat transfer surfaces, maintaining high thermal efficiency.
Yes. Filternox® filters are suitable for both recycled and grey water applications.
Automation & Integration Questions
Filternox® control panels support Modbus, Profibus, and Profinet. Additional protocols can be evaluated based on PLC selection. Standard dry contacts are also available for basic integration.
Yes. Panels integrate seamlessly with most automation and SCADA systems through supported communication protocols or dry contacts. Communication requirements should be defined during the project phase.
Yes. Filternox® filters can be connected to remote monitoring or IoT platforms when the required interface is specified in advance. Additional requirements can be evaluated based on customer infrastructure and PLC capabilities.