RUNXIN F71Q Automatic Filter Valve 2.5″ Base
R2 004,00 Incl. VAT
The Runxin F71Q automatic filter valve provides programmable backwash and rinse control for sand and carbon filtration systems. Designed for top-mount filter tanks with timer-based sequencing through service, backwash, and rinse cycles.
Runxin F71Q Automatic Filter Valve
The Runxin F71Q automatic filter valve is a timer-controlled automatic valve designed to manage backwash and rinse cycles on media filter systems. It replaces manual valves and maintenance routines by automating the transition between service → backwash → rinse → service according to user-programmable timing.
This model is intended for use on standard top-mount media filter tanks, such as sand or carbon filters used in residential and light commercial applications. The built-in controller allows users to set backwash frequency based on elapsed time, making the F71Q suitable for water systems where regular automated cleaning is preferred over manual intervention.
With simple programming and an LED status display, the Runxin F71Q helps maintain filtration effectiveness and reduces maintenance effort.
📐 Filter Tank Sizing Guide
Choosing an appropriately sized filter tank helps maintain performance and reduces unnecessary backwashing.
| Tank Diameter | Typical Use |
| 6″ | Small residential filtration, lower flow |
| 8″ | Standard household media filtration |
| 10″ | Larger residential or light commercial systems |
Sizing Notes
- Flow rate: Larger diameter tanks support higher flow and more media volume.
- Sediment load: High sediment conditions may benefit from larger media volume.
- Space constraints: Ensure you have adequate space for larger tanks and service access.
🕒 Backwash Timing Recommendations
The F71Q valve uses timer-based control to manage the cleaning cycle. The following are typical starting points based on usage and water quality:
Time-Based Backwash Intervals
| Water Quality / Application | Recommended Interval |
| Light sediment levels | Every 2–3 days |
| Moderate sediment load | Every 1–2 days |
| High sediment/debris | Daily or shorter intervals |
Notes
- Time settings should be observed and adjusted based on water clarity and filter performance.
- If filtered water quality degrades before the next cycle, reduce the interval.
📌 Practical Installation Advice
- Mount on a compatible filter tank: Confirm the thread and vessel size before installation.
- Program initial backwash interval: Start with moderate intervals and adjust based on water quality.
- Monitor early cycles: Observe backwash effectiveness and make timing adjustments.
- Review power setup: Ensure a consistent 12 V DC supply to maintain timer accuracy and operation.
| Weight | 3 kg |
|---|
Specifications
Specification |
Details |
| Model | Runxin F71Q |
| Product Type | Automatic filter control valve |
| Control Type | Timer-controlled sequencing |
| Valve Mount Type | Top-mount filter vessel |
| Inlet Connection Size | ¾″ Female |
| Outlet Connection Size | ¾″ Female |
| Drain Port Size | ¾″ Female |
| Rated Flow Capacity | Approx. 2.0 m³/h |
| Operating Pressure Range | 0.15 – 0.6 MPa (≈1.5 – 6 bar) |
| Water Temperature Range | 5 °C – 50 °C |
| Power Requirement | External DC 12 V via transformer |
| Compatible Vessel Sizes | Standard top-mount filter tanks (typically 6″–10″) |
| Controller Interface | LED status display |
| Programmable Functions | Service, backwash, rinse cycles |
| Valve Body Material | Corrosion-resistant composite |
| Typical Applications | Glass, carbon, media filtration systems |
Pros & Cons
✔ Pros
- Automates backwash and rinse cycles without manual input
- Timer-based programming for scheduled cleaning
- LED status indicators for operational visibility
- Compatible with standard filter vessels
- Reduces manual maintenance tasks
✖ Cons
- Timer-only regeneration (no flow-demand sensing)
- Moderate flow capacity — not suited for high-flow industrial filters
- Requires external power supply
- Not a softener valve — filtration only
FAQ's
1: What is the Runxin F71Q automatic filter valve used for?
It automates backwash and rinse cycles on media filter systems such as sand or carbon filters, minimizing manual maintenance.
2: Does the F71Q valve require electricity?
Yes. The controller requires an external DC 12 V power supply to run the timer and automatic sequencing.
3: What types of filter systems can use this valve?
The F71Q is designed for standard top-mount media filter tanks, commonly used in residential and light commercial filtration.
4: How often should it backwash?
Backwash frequency is set by timer control based on system needs and water quality. Users should adjust timing based on observed performance.
5: Does this model support softening?
No. The F71Q is a filter valve — it manages automated cleaning for filters, not ion-exchange softener regeneration.
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