System Sizing; Recommendations; Injector/Dlfc/Blfc-Valve Configuration; Sizing A Softener (Single Unit) - Pentair FLECK 9100 SXT Installer Manual

4.

System sizing

4.1.

Recommendations

4.1.1. Injector/DLFC/BLFC-Valve configuration

Connect.
Diam.
Valve
tubes
type
[in] [mm]
6
78.3
7
8
144.5
9
9100 10
221.0
12
13
14 322.3
16
Note
In upflow configuration, the injector cap is fitted with a pressure regulator set to 2 bar.
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.
Note
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.
Ref. MKT-IM-004 / A - 27.10.2016
Resin
Injector
volume
[L] DF Color
5 - 7
0 Red
8 - 14
9 - 21
22 - 28 1 White
29 - 42
43 - 56
2 Blue
57 - 70
71- 85
3 Yellow
86 - 113
Installer Manual Fleck 9100 - SXT - System sizing
DLFC
UF Color [gpm]
0 Red 1.2
1.5
1 White 2
2.4
3.5
2 Blue
4
5
3 Yellow
7
BLFC
DF [gpm] UF [gpm]
0.125 0.125
0.25 0.25
0.50 0.50
1.00 1.00
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