- Water meter controlled
- Capacity 450 to 1400 cubic meters per day
Usage
The DWF2 series double water softening systems are used to soften drinking water or well water to drinking water quality.
The systems are used wherever an uninterrupted supply of soft water must be ensured:
- Boiler feed water treatment
- Cooling water treatment
- For reverse osmosis systems
- Building technology
- Air conditioning technology
- Parts cleaning systems
- Flushing technology
- Car washes
Functionality
Softening is based on the principle of ion exchange (neutral exchange). Here, the hard water is passed through an ion exchanger material, which removes the hardness components calcium and magnesium and replaces them with an equivalent amount of sodium ions.
Once the ion exchanger has reached the end of its capacity, it must be regenerated. To do this, highly diluted brine is passed over the exhausted exchanger material. Due to the high excess of sodium ions in the brine, the aforementioned process is reversed: the exchanger stores sodium ions and releases the retained calcium and magnesium ions in return. These are flushed out as wastewater together with the rinse water.
To ensure an uninterrupted supply of soft water, one of the two filter tanks is always in operation, while the second filter tank is either being regenerated or is ready for use after regeneration. The amount of soft water extracted is recorded by a turbine meter and transmitted to the control system. Once the capacity of the container in operation has been exhausted, the control system automatically switches to the container on standby. The exhausted filter container is then regenerated. A central control valve controls both the water flow through the containers and the regeneration phases:
- Backwashing
- Salting / Slow washing
- Washing out
- Refill salt dissolving container
Advantages
Fully encapsulated safety transformer
Varistors to protect the control system from external influences
Salt dissolving tank with sieve bottom for dry storage of regeneration salt and for precise determination of brine quantity
Safety brine valve for safe extraction and controlled refilling
Robust distribution system with nozzle star for optimal capacity utilization
Monosphere ion exchanger (brand name) in food grade quality
Continuous soft water production
Fully automated operation
Easy to use
Low maintenance and servicing requirements
Space-saving design
Low operating costs
Simple control
Scope of delivery
Largely pre-assembled double water softening system ready for connection, for free-standing installation, consisting of:
Two filter containers made of glass fiber reinforced plastic, each filled with high-quality cation exchange material in food grade quality.
A central control valve made of red brass
Connecting pipes between the filter tanks
Salt dissolving tank with sieve bottom and brine valve
Water meter turbine
Microprocessor control for fully automatic, water meter-controlled operation of the entire system
Drain and brine hoses
Hardness testing equipment