Duplex Water Softeners
Features
- Water softening units available between 20 litres and 750 litres.
- Fitted with either a single TT CI Valve or two CI Valves and interconnecting Motorised Alternating Valve.
- Duplex system makes softened water available 24/7 with no downtime during regeneration.
- Increases the effectiveness and lifespan of appliances such as dishwashers, washing machines and boilers.
- Prevents limescale build up on faucets, showerheads and inside pipework.
Information
Duplex water softeners are available in a range of sizes, from 20 litres up to 250 litres making them ideal solutions for when moderate amounts of softened water is required on a 24/7 basis. Hard water contains magnesium and calcium ions, which are responsible for causing scale. This scale can cause pipes to clog, unsightly crusting and marks on faucets and showerheads, as well as cause appliances such as dishwashers, washing machines and boilers to have reduced effectiveness and lifespan.
Duplex water softeners are great solutions for large factories, agricultural applications, cooling towers and laundries where softened water is needed 24/7. Duplex softeners are actually two softener tanks working the exact same way as a simplex water softener. However, when one of the tanks needs to go into regeneration, the second tank takes over softening the water whilst the first goes through the regeneration process. When the second tank then requires regeneration, they switch again, and so on. This process is called Service and Standby and enables you to have a constant supply of softener water, rather than having “downtime” during the regeneration process.
All our water softener units are supplied with “PURERESIN Company” Softener Resin [WRA300]. We can also offer Purolite Softener Resin [C100E] – please enquire for prices.
Commercial Water Softeners
For those requiring larger volumes of softened water, we also offer commercial water softeners. With models ranging from 250 litres up to 750 litres, the commercial duplex water softeners are ideal for when you require constant, softened water at industrial quantities.
Regeneration Process
Water softeners work by removing magnesium and/or calcium ions from the water. It does this by swapping the calcium/magnesium ions with sodium ions in a process called ion exchange. Eventually the resin will require regeneration as the sodium ions are exhausted. Regeneration uses a saltwater solution from a brine tank to recharge the resin with sodium ions and remove the magnesium/calcium ions. The resin is also rinsed to remove any clogs or deposits and to remove any excess salt build-up from the regeneration process. Depending on the size of the water softener unit, the regeneration process can take anywhere between 70 minutes to a few hours. The only requirement from the user is to top up the brine tank with salt when needed.
Clack Valves
Our standard water softeners are fitted with 1″ or 1.25″ Clack Valves. Each Duplex system has either a single TT CI Valve or two CI Valves and interconnecting Motorised Alternating Valve.
Our commercial water softeners can also be fitted with 1.5″ and 2″ Clack Valves.
Service Parts
We provide a number of service parts and tools for maintaining Clack Valves, including:
- Clack Valve Wrench
- Clack 1″ Bypass Assembly
- Clack Motorised Alternating Valve for 1.5″ and 2″
- Clack 3/4″ Male BSP Adaptor Kit
- Clack No Hardwater Bypass Valve
- Clack Vertical 90o Adaptor Kit
- Clack Stack Puller
Datasheet
Specifications
| Resin Volume x2 | 20 Litres | 30 Litres | 40 Litres | 50 Litres | 60 Litres |
|---|---|---|---|---|---|
| Twin Alternating (TT-DS) Part No. | WF0835CITT-DS | WF1035CITT-DS | WF1044CITT-DS | WF1054CITT-DS | WF1252CITT-DS |
| Motorised Alternating Valve (MAV) Part No. | WF0835CI-DS | WF1035CI-DS | WF1044CI-DS | WF1054CI-DS | WF1252CI-DS |
| Tank Size (inches) x2 | 8 x 35 | 10 x 35 | 10 x 44 | 10 x 54 | 12 x 52 |
| Recommended Service Flow (m3/hr) | 0.8 | 1.2 | 1.6 | 2.0 | 2.4 |
| Volume Capacity between Regens @ 300 ppm (m3) | 3.3 | 5.0 | 6.7 | 8.3 | 10.0 |
| Brine Tank Volume (litres) | 85 | 95 | 95 | 140 | 140 |
| Salt Usage per Regen (kgs) | 3.0 | 4.4 | 6.0 | 7.5 | 9.0 |
| WS1 Injector Colour | Violet | White | White | White | Blue |
| WS1 Drain Line Flow Controller | 017 | 022 | 022 | 027 | 042 |
| Approx. Footprint D x W x H cms | 50 x 74 x 130 | 50 x 85 x 130 | 50 x 85 x 152 | 57 x 85 x 177 | 62 x 92 x 172 |
| Approx. Regen Duration (minutes) | 70 | 75 | 80 | 80 | 80 |
| Resin Volume x2 | 75 Litres | 100 Litres | 150 Litres | 200 Litres | 250 Litres |
|---|---|---|---|---|---|
| Twin Alternating (TT-DS) Part No. | WF1354CITT-DS | WF1465CITT-DS | WF1665CITT-DS | WF1865CITT-DS | WF2160CITT-DS |
| Motorised Alternating Valve (MAV) Part No. | WF1354CI-DS | WF1465CI-DS | WF1665CI-DS | WF1865CI-DS | WF2160CI-DS |
| Tank Size (inches) x2 | 13 x 54 | 14 x 65 | 16 x 65 | 18 x 65 | 21 x 60 |
| Recommended Service Flow (m3/hr) | 3.0 | 4.0 | 6.0 | 6.0 | 6.0 |
| Volume Capacity between Regens @ 300 ppm (m3) | 12.5 | 16.6 | 24.9 | 33.2 | 41.5 |
| Brine Tank Volume (litres) | 140 | 190 | 340 | 460 | 670 |
| Salt Usage per Regen (kgs) | 11.25 | 15.0 | 22.5 | 30.0 | 37.5 |
| WS1 Injector Colour | Yellow | Green | Orange | Light Blue | Light Green |
| WS1 Drain Line Flow Controller | 053 | 065 | 075 | 090 | 150 |
| Approx. Footprint D x W x H cms | 38 x 66 x 109 | 57 x 135 x 205 | 74 x 156 x 215 | 84 x 170 x 215 | 97 x 200 x 202 |
| Approx. Regen Duration (minutes) | 80 | 95 | 95 | 95 | 95 |
| Resin Volume x2 | 250 Litres | 350 Litres | 500 Litres | 750 Litres |
|---|---|---|---|---|
| Part No. | WF2160CI1.5-DS1 | WF2469CI1.5-DS1 | WF3072CI2-DS1 | WF3672CI2-DS1 |
| Valve & Meter Size | 1.5" | 1.5" | 2" | 2" |
| Tank Size (inches) x2 | 21 x 60 | 24 x 69 | 30 x 72 | 36 x 72 |
| Recommended Service Flow (m3/hr) | 10.0 | 14.0 | 20.0 | 26.0 |
| Volume Capacity between Regens @ 300 ppm (m3) | 41.5 | 58.1 | 83.0 | 124.5 |
| Brine Tank Volume (litres) | 670 | 670 | 920 | 920 |
| Salt Usage per Regen (kgs) | 37.5 | 52.5 | 75.0 | 112.5 |
| WS1 Injector Colour & Size | Yellow 15F | Green 15G | 2D | 2E |
| WS1 Drain Line Flow Controller | 15 | 20 | 25 | 42 |
| Approx. Footprint D x W x H cms | 100 x 200 x 220 | 110 x 200 x 220 | 125 x 300 x 220 | 140 x 320 x 220 |
| Approx. Regen Duration (minutes) | 100 | 110 | 125 | 125 |
Applications
Duplex Water Softeners are highly effective for:
- Large Factories
- Agricultural Applications
- Cooling Towers
- Laundry Services
