RUNXIN F77B1 Automatic Filter

The RUNXIN F77B1 Automatic Filter controls water filtration with ease. In addition, it handles up to 18 000 L/h, making it perfect for medium to large filtration systems. Moreover, the valve allows you to program backwash cycles using a clear LED display. As a result, it reduces manual work and ensures consistent filtration.

Furthermore, the F77B1 supports 2″ connections and offers flexible installation, either top-mounted or side-mounted. For example, its ceramic sealing faces prevent leaks and corrosion. Therefore, this automatic filter works well with sand filters, carbon filters, and pre-RO setups, making it ideal for industrial and commercial water treatment applications.

Features & Benefits

• High Flow Capacity: Supports up to 18,000 L/h, suitable for 2″ connections.
• Automatic Backwash & Rinse Control: Automates service, backwash, fast‑rinse, and brine (if configured).
• LED Dynamic Display & Button Lock: Displays current status and locks buttons to prevent accidental changes.
• Flexible Mounting Options: Configurable for top‑mount or side‑mount installation.
• Reliable Sealing & Construction: Uses ceramic sealing faces for corrosion resistance and leak‑free operation.

Specifications

• Inlet/Outlet: 2″ Male threads.
• Drain Port: 1½″ or 2″, depending on variant.
• Operating Pressure: 0.15–0.6 MPa (≈1.5–6 bar).
• Operating Temperature: 5 °C–50 °C.
• Turbidity Rating: <20 FTU.
• Suitable Tank Size: 24″–30″ diameter vessels.

Application & Use Cases

This automatic filter valve is ideal for:

• Sand or multimedia filters in industrial‑scale water treatment
• Activated carbon filtration systems ahead of RO plants
• High‑flow water refilling stations where automatic regeneration is required
• Municipal or commercial filtration setups requiring reliable automated valve control

Installation & Maintenance Tips

1. Ensure the valve is mounted on a compatible vessel (24″‑30″ tank diameter) with correct inlet/outlet sizing.
2. Connect power (AC100‑240 V) and set up according to time‑clock or meter‑type controls as required.
3. Program backwash sequence (service → backwash → fast rinse → service) based on application and media type.
4. Monitor the LED display for service indicators or outage warnings. Buttons lock after 1 minute of inactivity to prevent tampering.
5. Clean or replace media as required and ensure the valve recalibrates correctly after servicing.