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FILTER LOAD
Different active loads may be used with the BWT PURITY PRO XL filter, depending on the required water
treatment.
BWT PURITY PRO XL BILAYER FILTER
BWT PURITY PRO XL
1) Flint support layer
1.35
2) Sand filter layer
0.55
3) Anthracite filter
layer 1.2/2.4
Maximum
recommended
treatment rate
Recommended
washing rate
Ground load in
operation:
BWT PURITY PRO XL MONOLAYER FILTER
recycled from air coolers, via slow filtration.
BWT PURITY PRO XL
1) Flint support layer D
2) Sand support layer A
3) Flint support layer
1.35
4) Sand filtering layer
0.55
Maximum
recommended
treatment rate
Recommended washing
rate
Ground load in
operation:
BWT PURITY PRO XL ACTIVATED CARBON FILTER
for removal of odorous gases and low molecular weight organic matter, via absorption.
BWT PURITY PRO XL
1) Flint support layer 1.35
2) Activated carbon filtering later
Maximum treatment
rate depending on
0.4-1 ppm
the free chlorine
<0.4 ppm
level
Recommended washing rate
Ground load in operation:
Is used for rapid clarification of turbid water via filtration.
55
2 bags of 25 kg
2 bags of 25 kg
5 bags of 25 kg
7 bags of 25 kg
4 bags of 25 L
6 bags of 25 L
3
6 m
/h
3
4 - 6 m
/h
5 - 7 m
420 kg
Is used for clarification of natural water and cooling water
55
1 bag of 25 kg
2 bags of 25 kg
2 bags of 25 kg
2 bags of 25 kg
2 bags of 25 kg
2 bags of 25 kg
7 bags of 25 kg
10 bags of 25 kg
3
3 m
/h
3
4 - 6 m
/h
5 - 7 m
460 kg
55
2 bags of 25 kg
3 bags of 25 kg
3
> 1 ppm
1 m
/h
3
2 m
/h
3
5 m
/h
3
3 m
/h
365 kg
BWT PURITY PRO XL Technical Manual - code 125502287 - Rev 1 - 27/09/2021
61
77
3 bags of 25 kg
12 bags of 25 kg
8 bags of 25 L
3
7 m
/h
11 m
3
/h
9 - 11 m
560 kg
900 kg
61
77
3 bags of 25 kg
3 bags of 25 kg
3 bags of 25 kg
17 bags of 25 kg
3
3
4 m
/h
6 m
3
/h
9 - 11 m
625 kg
990 kg
Is used to catalyse the reduction of free chlorine and
61
2 bags of 25 kg
3 bags of 25 kg
4 bags of 25 kg
6 bags of 25 kg
3
1 m
/h
3
2 m
/h
3
6 m
/h
10 m
3
4 m
/h
490 kg
93
8 bags of 25 kg
18 bags of 25 kg
12 bags of 25 L
3
3
/h
16 m
/h
3
3
/h
13 - 16 m
/h
1355 kg
93
4 bags of 25 kg
4 bags of 25 kg
4 bags of 25 kg
24 bags of 25 kg
3
/h
10 m
/h
3
3
/h
13 - 16 m
/h
1440 kg
77
93
7 bags of 25 kg
12 bags of 25 kg
3
3
2 m
/h
3 m
/h
3
3
4 m
/h
6 m
/h
3
3
/h
15 m
/h
3
3
6 m
/h
10 m
/h
775 kg
1120 kg
25
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