Water softeners must match raw hardness, required residual hardness, peak flow and regeneration conditions; undersized resin capacity causes hardness breakthrough before the next regeneration cycle.
YONGFAN RLC fully automatic water softeners use cation-exchange resin beds and modular brine tanks to remove calcium and magnesium ions down to ≤0.03 mmol/L across boiler feedwater, cooling towers, laundries, and commercial hot-water systems.
Two systems with identical flow need completely different resin volumes if one receives 1 mmol/L hardness and the other receives 8 mmol/L.
Sizing for 24-hour average flow chokes during peak morning draw, causing excessive pressure drop and channel channeling.
Suspended solids coat resin bead surfaces, blind the upper bed, increase head loss, and drastically cut ion exchange rates.
Treating brine regeneration as an afterthought leaves plant rooms without salt storage, adequate rinse water, or high-capacity drains.
Factory-documented operating criteria; customized to user flow and hardness loading requirements.
| Specification Field | Supplier-Documented Value | Engineering Selection Meaning |
|---|---|---|
| Product Family | RLC Fully Automatic Water Softener | Automatic sodium cation-exchange softening system |
| Raw-Water Hardness | ≤10.0 mmol/L (½Ca²⁺ + ½Mg²⁺) | Feedwater must remain within stated hardness boundary |
| Residual Hardness Target | ≤0.03 mmol/L | Measurable softened-water output boundary for boiler/process feed |
| Inlet Turbidity | ≤1 NTU | Feedwater with turbidity >1 NTU requires pre-filtration |
| Inlet Pressure Range | 0.2 – 0.6 MPa | Standard operating hydraulic inlet pressure window |
| Water Temperature | 2 – 50 °C | Standard ion-exchange resin and control valve temperature range |
| Electrical Power Supply | AC 220 V, 50/60 Hz | Multiport automatic control valve power input |
| Power Consumption | 6 – 50 W | Low operating power depending on configured valve and controller |
| Resin Service Life | >3 Years (at standard water quality) | Subject to feedwater chlorine, iron, and turbidity levels |
| Main Equipment Modules | Resin Vessel + Brine Tank + Multiport Valve | Modular treatment and automated brine regeneration package |
| Control Automation | Fully Automatic (Manual override optional) | Meter- or time-initiated service/regeneration cycles |
| Design Basis | Customized to Flow & Hardness | Vessel diameter, resin quantity, and valve sized to project RFQ |
Delivers ≤0.03 mmol/L softened makeup water to protect steam boilers from calcium scale. Feedwater with >1 NTU turbidity must include upstream pre-filtration.
Prevents calcium carbonate scaling on plate and tube heat exchanger surfaces. Softener is installed on cold makeup supply (2–50 °C) rather than hot recirc loops.
Cuts detergent consumption and protects laundry boilers and water heaters during sharp morning peak draw. Duplex alternating design ensures continuous soft water.
Protects autoclaves, bottle washers, and process equipment. Wetted material compliance and downstream polishing (RO/EDI) reviewed per project requirements.
Total hardness in mmol/L, ppm, or mg/L as CaCO₃ (standard RLC limit ≤10.0 mmol/L).
Peak service flow rate (m³/h) and total expected daily soft water consumption (m³/day).
Inlet pressure (0.2–0.6 MPa) and raw turbidity (≤1 NTU, or note upstream filtration).
Select Simplex (intermittent) or Duplex Alternating (continuous 24/7 uninterrupted feed).
YONGFAN application engineers will calculate resin volume, size multiport valves, determine brine tank dimensions, and provide complete skid layout drawings.
FRP and lined steel resin vessels undergo 1.5× design pressure hydrostatic verification for structural integrity.
Electronic and hydraulic multiport control valves undergo full-cycle testing across backwash, brine draw, rinse, and service positions.
Food-grade strong acid cation exchange resin is sampled for total exchange capacity and particle-size uniformity.
Skid-mounted simplex and duplex systems are pre-piped with bypass valves and brine suction lines pre-fitted.
The RLC removes calcium (Ca²⁺) and magnesium (Mg²⁺) hardness ions through sodium cation-exchange resin beds.
YONGFAN documents ≤10.0 mmol/L raw-water hardness for the standard RLC operating boundary.
The supplier states residual softened water hardness of ≤0.03 mmol/L under standard operating conditions.
The documented limit is ≤1 NTU. Feedwater with higher turbidity requires mechanical pre-filtration to prevent resin fouling.
RLC is documented for 2 to 50 °C water. It must be installed on cold makeup lines, not hot recirculation loops.
The standard operating pressure window is 0.2 to 0.6 MPa. Excessive pressure requires upstream pressure reduction.
Yes. Saturated sodium chloride (NaCl) brine is automatically drawn during regeneration to replenish sodium ions on the resin.
Yes, by specifying a duplex alternating vessel configuration, where one tank regenerates while the other remains in service.
Do not use RLC to remove suspended solids when turbidity exceeds 1 NTU; install mechanical pre-filters upstream.
Cation exchange replaces calcium and magnesium with sodium. It does not reduce total dissolved solids (TDS) or remove silica.
Do not apply standard RLC to hot boiler return or process lines above 50 °C; high temperatures degrade cation resin beads.
Softening does not remove dissolved oxygen, carbon dioxide, or bacteria. Pair with deaerators and chemical biocides as required.
Send your raw water analysis (hardness, turbidity, TDS), peak hourly flow, daily makeup volume, and operating pressure. YONGFAN application engineers will calculate resin volume, select multiport valves, and provide full CAD installation drawings.
