Water Softener
Water Treatment
Water Softener
Technical Specification
Model: WS Series
1. Product Overview
The water softener removes calcium and magnesium ions (hardness) from water by means of sodium-form cation exchange resin: Ca²⁺ and Mg²⁺ are exchanged for Na⁺ on the resin, bringing effluent hardness down to ≤0.03mmol/L. Once the resin is exhausted, it is regenerated with a NaCl solution. Softeners are widely used wherever low-hardness water is required — boiler feed, cooling water, laundry service and more — preventing scale in equipment and piping.
Key Features
- Effluent hardness ≤0.03mmol/L
- Flow 1–100 m³/h
- Fully automatic regeneration
- Twin-tank alternating, continuous supply
- Low salt consumption
- Resin life 5–8 years
2. Working Principle
Softening
Ca²⁺ and Mg²⁺ in the water exchange with Na⁺ on the sodium-form cation resin: hardness ions are retained by the resin while Na⁺ passes into the water, lowering its hardness.
Regeneration
The exhausted resin is regenerated with a 5–10% NaCl solution; the high concentration of Na⁺ displaces the adsorbed Ca²⁺ and Mg²⁺, restoring the exchange capacity of the resin. Cycle: backwash → brine draw → slow rinse → fast rinse → brine refill.
3. System Classification
By Tank Count
1. Single-tank softener
2. Twin-tank softener (duty/standby); by control — time-based or meter-based
By Control
1. Time-based
2. Meter-based
4. Detailed Technical Parameters
Basic Parameters
| Parameter | Specification |
|---|---|
| Model | WS-1000/3000/10000 |
| Flow | 1–100 m³/h |
| Pressure | 0.2–0.6 MPa |
| Hardness Out | ≤0.03 mmol/L |
Parameters
| Model | Flow(m³/h) | Resin(L) | Salt(g/mol) | Dia.(mm) |
|---|---|---|---|---|
| WS-1000 | 1–5 | 200 | ≤100 | 400 |
| WS-3000 | 5–20 | 600 | ≤100 | 800 |
| WS-10000 | 20–100 | 2000 | ≤100 | 1500 |
5. Core Component Selection
Exchange Tank
FRP or SUS304 vessel with upper and lower distributors, rated 0.6 MPa.
Cation Exchange Resin
Strong acid cation resin (001×7) in Na-form, exchange capacity ≥1200 eq/L; Rohm&Haas or Purolite resins available on request.
Brine Tank & Regeneration System
PE brine tank + float valve + ejector; 5–10% brine is prepared automatically.
Control Valve
Fleck/Clack multi-port control valve with automatic service/regeneration switching; time- or meter-initiated.
6. Typical Application Fields
Boiler Feed
Softening of feedwater for low-, medium- and high-pressure boilers
Cooling Water
Make-up water softening for recirculating cooling systems
Laundry
Hotel, hospital and industrial laundry
Industrial Water
Process water softening and scale prevention
7. Design Standards & Certifications
Compliant with the following standards and certifications
1. GB/T 18300-2011 automatic sodium-ion exchangers
2. GB 1576-2018 industrial boiler water quality; ISO 9001/14001
3. CE certified
8. Custom Optional Configurations
| Option | Details |
|---|---|
| Flow | 1–100 m³/h |
| Tanks | Single/Twin |
| Control | Time/Meter |
| Tank | FRP/SUS304 |
9. Warranty Terms
| Status | Warranty | Scope |
|---|---|---|
| New | 12 months | Tank, control valve, brine tank |
10. Packaging & Delivery
| Item | Packaging |
|---|---|
| Main Unit | Anti-rust, crate |
| Resin | Sealed packaging |
Lead time: 15–30 working days for new units.
11. Information Required for Inquiry
Please provide the following for an accurate quotation:
Required flow rate (m³/h)
Feed hardness (mmol/L)
Product hardness required
Single/Twin tank
Material and control preference
Voltage/frequency
New/Refurbished
Delivery terms and destination port