Installer manual Fleck 3150 NXT/NXT2 - System sizing
Ref. MKT-IM-010 / C - 18.10.2019
27 / 182
4
System sizing
4.1
Recommendations
4.1.1
Injector/DLFC/BLFC-Valve configuration
Brine
syst.
Tank
Diameter
Resin
volume
Injector
DLFC
BLFC
[in]
L
DF
Color
UF
Color
[gpm]
DF
[gpm]
UF
[gpm]
3150/
1800
24
283 - 424
4
Green
4
Green
20.0
5.0
5.0
30
284 - 425
5
Red
25.0
36
426 - 605
6
White
5
Red
35.0
42
566 - 850
7
Blue
6
White
50.0
10.0
10.0
48
851 -
1200
8
Yellow
7
Blue
70.0
54
1201 -
1550
9
Purple
8
Yellow
80.0
60
1551 -
2000
10
Black
100.0
4.2
Sizing a softener (single unit)
4.2.1
Parameters to be considered
Whenever installing a softener, it is preferable to have full water analysis to ensure the
inlet water content will not affect the resin bed.
Info
Please consult your resin manufacturer specifications to ensure that no additional
pretreatment prior to softening is required.
The below sizing method can be applied for both residential and industrial softeners.
The sizing of a softener must be based upon certain parameters:
• inlet water hardness;
• peak flow rate and nominal flow rate;
• service velocity;
• salt dosage.
The softening and regeneration reactions are driven under certain conditions. To allow
these reactions to take place, make sure that the velocity is convenient during the
different phases for proper ion exchange. This velocity is given in the resin
manufacturer specifications sheet.
Depending on the inlet water hardness, the service velocity for standard softening must
be between:
Содержание FLECK 3150 NXT
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