TUV ISO
9001:2000 		 
Tandem Water Softening
 
With Rielli water softening units, the calcium and magnesium ions, known as lime among the people, imparting hardness to the water are picked up from the water and thus the water is softened. Under the current environmental conditions where water quality is getting worse every day, you may protect all your water installation against lime by using softened water and thus extend service life of your dishwashers and reduce power consumption for water heating considerably. Benefits from use of softened water are not limited to them; the laundry washed in soft water gets whiter and the colors more vivid. No lime stains appear on the dishes. Consumption of cleaning materials reduces considerably.

As to the industrial applications, use of water conditioned correctly will extend service life of your heating units, providing efficiency and quality improvement with respect to washing and dyeing operations.

Selection of Correct Equipment

Water softening units operate by a process different than filtration. Basic principle of the softening process is ion exchange. Essential ions imparting hardness to the water are Ca and MG ions. For ion-exchange process, sodium-based cationic (acidic) resin is used. During service, the resin collects on it Ca and Mg ions having +2 value in the water. At time of regeneration, Na ion is given to the unit. As Na ion can be reinforced by NaCI component in the easiest and cost-effective way, saline water is used for this purpose. While the resin retains Na ion, it releases Ca and Mg ions. Ions imparting hardness to the water are thus drained. Thus the unit becomes ready for the following service upon regeneration of the resin.

As it may be understood, the most important parameters affecting efficiency of the equipment are quantity of resin and chemical formula of the resin. Surface speed remains as secondary parameter.
Operating Way of the Softening Units

Duplex water softening units are used for recovery of continuous soft water or reduction of initial investment costs of the system. In the system, when one of the bodies is in service, the other completes regeneration, waiting for the body in service to enter into regeneration in ready state. When the body in service enters into regeneration, the backup body enters into service. Unlike the single system, in the duplex system, resin less than the quantity required in the single system is used and two smaller tanks, instead of a single big one, is used and valf to control the system can be selected cost-effectively, thus providing optimization in the duplex systems.  
Filter Bodies

Filter bodies are of fiberglass having special mixture. They are tested under 16 bars. Operating pressure is 10 bars.

Control Mechanism

Full-automatic valves are used on the equipment. Surface of the valves which is in contact with water is brass and other parts are plastic. The softening units enter into regeneration under time control or flow rate control. Maximum service temperature at which the valves may be used is 50oC. Operating pressures of the valves are 1.8 – 8.8 bars. Next to each unit, there is polyethylene salt tank in volume compliant with capacity. We have also models designed by use of aquamatic valves.
Dubleks Su Yumuşatma Cihazları
Serial
Product
Flow
Ion Exchange Resin
Capacity ( Fr x m3 )
Vessels Sizes
Relation
Calt Cons.
m3/h
lt
Min
Max
Calibre"
Height"
" (inch)
( kg/rej )
9000
DY90/80
4,5
24 x 2
133
145
8
44
3/4
4
DY90/100
4,5
46 x 2
255
278
10
54
3/4
7
DY90/120
4,5
64 x 2
353
385
12
52
1
10
DY90/130
4,5
78 x 2
430
470
13
54
1
13
DY90/140
4,5
109 x 2
601
656
14
65
1
17
DY90/160
4,5
143 x 2
785
856
16
65
1
23
9500
DY95/140
11
109 x 2
601
656
14
65
1.1/2
17
DY95/160
11
143 x 2
785
856
16
65
1.1/2
23
DY95/180
11
181 x 2
993
1084
18
65
1.1/2
29
DY95/210
11
227 x 2
1248
1362
21
60
1.1/2
36
DY95/240
11
341 x 2
1876
2046
24
69
1.1/2
55
2850
DY28/160
12
143 x 2
785
856
16
65
1.1/2
23
DY28/180
12
181 x 2
993
1084
18
65
1.1/2
29
DY28/210
12
227 x 2
1248
1362
21
60
1.1/2
36
DY28/240
12
341 x 2
1876
2046
24
69
1.1/2
55
DY28/300
12
465 x 2
2558
2790
30
72
1.1/2
74
2900
DY29/160
24
143 x 2
787
858
16
65
2
23
DY29/180
24
181 x 2
993
1084
18
65
2
29
DY29/210
24
227 x 2
1249
1362
21
60
2
36
DY29/240
24
341 x 2
1876
2046
24
69
2
55
DY29/300
24
465 x 2
2558
2790
30
72
2
74
3150
DY31/240
26
341 x 2
1876
2046
24
69
2
55
DY31/300
26
465 x 2
2558
2790
30
72
2
74
DY31/360
26
670 x 2
3685
4020
36
72
2
107
DY31/420
26
1000 x 2
5500
6000
42
78
2
160
DY31/480
26
1400 x 2
7700
8400
48
82
2
224
3900
DY39/300
50
465 x 2
2558
2790
30
72
3
74
DY39/360
50
670 x 2
3685
4020
36
72
3
107
DY39/420
50
1000 x 2
5500
6000
42
78
3
160
DY39/480
50
1400 x 2
7700
8400
48
82
3
224