Runxin F77B Automatic Filter – High‑Flow, Intelligent Filtration

The Runxin F77B automatic filter delivers reliable, hands-free backwash control, making it perfect for sediment or multimedia filters in residential or RO‑pre‑treatment systems. Because it automates the rinse cycle, you save effort while ensuring clean, high‑quality filtered water at all times.

Key Features

• High Flow Rate: Rated for up to 18 m³/h, this control head supports very high flow filtration systems.
• Inlet / Outlet Ports: 2″ male ports give you flexibility for large‑diameter filter vessels.
• Drain Connection: Comes with a 1.5″ male drain connector for efficient backwash discharge.
• Operating Conditions: Works reliably between 0.2–0.6 MPa pressure and temperatures of 5 °C–45 °C.
• Control & Power: It uses a DC 24 V, 1.5 A adapter and features a long-outage memory so your settings are retained even after a power failure.
• LED Display & Locking Controls: The LED screen flashes during service or backwash cycles. Plus, the buttons lock if unused for 1 minute — preventing accidental changes.
• Interlock & Signal Functionality: Includes interlock capability to coordinate with other control valves, plus a signal output and remote-handling connector.
• Pressure Relief Feature: Built-in pressure‑relief connector ensures safe operation during backwash.
• Durable Sealing: Utilizes hermetic ceramic head faces that resist corrosion and provide long-term reliability.

Benefits

• Automated Backwash: Regenerates the filter media automatically, which reduces manual maintenance.
• High-Efficiency Filtration: With 18 m³/h capacity, it supports large or high-flow filter systems without bottlenecks.
• Robust and Long-Lasting: Ceramic sealing ensures durable operation, while the interlock and signal functions let you integrate it into complex systems.
• User-Friendly: The LED screen clearly shows operation status, and the manual override gives you control when needed.
• Power‑Outage Safe: Memory retention ensures settings stay intact, even after power loss.
• Safe Operation: Pressure-relief connector and interlock system enhance safety during backwash cycles.

Ideal Applications

• Sand or multimedia filters in RO pre-treatment
• Large domestic filtration systems
• Commercial water filtration systems
• Filtration setups where automated and reliable rinsing is essential