RUNXIN F71P Automatic Filter Valve 2.5″ Base
R2 004,00 Incl. VAT
The Runxin F71P automatic filter valve provides timer-controlled switching between service, backwash, and rinse modes for media filtration systems. Designed for standard top-mount filter vessels with ¾″ connections.
Runxin F71P Automatic Filter Valve
The Runxin F71P automatic filter valve is a time-controlled automatic valve designed to manage the operational cycling of media filtration systems. It replaces manual multiport valves or manual backwash procedures by sequencing through service → backwash → rinse → service without manual intervention.
This valve is commonly used on glass filters, carbon filters, and pre-treatment filter tanks to maintain media cleanliness and system performance. The integral timer controller allows programmable backwash intervals, and the valve head mounts directly onto compatible top-mount filter tanks.
Because proper automated backwash improves filter efficiency and reduces maintenance intervals, the F71P valve is suitable for applications where manual backwashing is impractical or inconsistent.
📐 Filter Tank Sizing Guide
Unlike softeners, filter tanks are sized based on flow rate and media requirements. For effective operation:
| Tank Diameter | Typical Use |
| 6″ | Small residential filtration (low flow) |
| 8″ | Standard household media filter (moderate flow) |
| 10″ | Higher flow or larger household systems |
Sizing Considerations
- Flow Rate: Choose a diameter that supports peak demand without exceeding media capacity.
- Media Volume: Larger tanks hold more media, improving backwash efficiency and filtering capacity.
- Installation Space: Ensure access room around the filter tank.
🕒 Backwash Timing Recommendations
Time-Based Backwash Intervals
| Water Quality / Application | Recommended Backwash Interval |
| Light sediment levels | Every 2–3 days |
| Moderate sediment load | Every 1–2 days |
| High sediment / debris | Daily or shorter interval |
Notes
- Time-only programming is based on experience and water conditions — actual needs may vary with water clarity and usage.
- If sediment load is unpredictable, observe performance and adjust the interval shorter until filters stay clean.
📌 Practical Installation Advice
- Mount on appropriate filter vessel: Install on a compatible top-mount tank with correct thread size and secure sealing.
- Set backwash interval: Begin with conservative (common) interval settings and adjust based on water quality.
- Monitor first weeks: Verify that rinsing sufficiently clears media without excessive water use.
- Power supply: Ensure a stable 12 V DC power source for reliable operation.
| Weight | 3 kg |
|---|
Specifications
Specification |
Details |
| Model | Runxin F71P |
| 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 Connection Size | ¾″ Female |
| Rated Flow Capacity | ~2.0 m³/h |
| Operating Pressure Range | 0.15 – 0.6 MPa (≈1.5 – 6 bar) |
| Water Temperature Range | 5 °C – 50 °C |
| Power Supply Requirement | DC 12 V (via external transformer) |
| Compatible Vessel Sizes | Standard top-mount filter tanks (typically 6″–10″) |
| Controller Interface | LED status display |
| Programmable Operations | Service, backwash, fast rinse, return to service |
| Valve Body Material | Corrosion-resistant composite |
| Typical Applications | Residential media filtration systems |
Pros & Cons
✔ Pros
- Automates backwash and rinse cycles without manual control
- Timer-controlled programming for repeatable results
- LED display for status and cycle indication
- Compatible with standard top-mount filter tanks
- Compact and straightforward installation
- Reduces manual maintenance tasks
✖ Cons
- Timer-based control only (no sensor/demand backwash)
- Moderate flow capacity — not suitable for high-flow industrial filters
- Requires external power supply
- Not a softener or full water treatment system on its own
FAQ's
1: What is the Runxin F71P automatic filter valve used for?
The F71P valve automates backwash and rinse cycles in media filter systems such as sand or carbon filters, reducing manual maintenance.
2: Does the F71P valve require electrical power?
Yes. The valve requires an external 12 V DC power supply for the controller and automatic sequencing.
3: What size tanks are compatible?
The valve is designed for standard top-mount filter vessels, typically 6″–10″ in diameter, commonly used in residential filtration.
4: How often does backwash occur?
Backwash frequency is controlled by a programmable timer. Users can set intervals based on system needs and water quality.
5: Can it replace a manual multiport valve?
Yes. This model replaces manual multiport valves for media filters where automatic cleaning is preferred.
Related products
