Resinex KW-8 Plus
™
Strong acid cation softening resin
Resinex™ KW-8 Plus is a high purity, premium grade, pretreated, strongly acidic gel-type cation exchange resin specially
designed for residential drinking water treatment. The KW-8 Plus is a bead type, crosslinked, dark brown colored,
polystyrene divinylbenzene resin that offers excellent bead integrity, very low extractables, and is specially pretreated to
remove taste, odor and color throw. The product is produced without solvents and therefore highly suitable for a wide
variety of drinking water treatment applications. Resinex™ KW-8 Plus meets the requirements of FDA regulation CFR
section 21, §173.25, European ResAP (2004) 3.
Typical Properties
Key Features and Benefits
Type
Crosslinked polystyrene divinylbenzene
Form
Gel-type, dark brown, spherical beads
Functional group
• Pretreated and Rinsed
Guarantees minimal color throw and
eliminates taste and odor
Sulfonic acid
Whole bead count
95% min.
Ionic form, as shipped
Na
+
Bead size
0.42 - 1.25 mm
Effecitve size
0.45 ± 0.55 mm
Bulk density, as shipped
820 kg/m3
Real density
1.28 g/cm3
Water retention
45 - 50%
Total capacity (Na+ form)
1.90 eq/l min.
Volume change Ca –> Na 2+
+
Stability, temperature
2% max.
120°C max.
Stability, pH
0 - 14
Color throw
25 APHA max.
• High Integrity Beads
Excellent resistance to mechanical
degradation ensures low pressure drop
• Low Extractables - FDA Compliance
Specially treated to eliminate leaching of
organic matter, assuring compliance with
FDA regulation CFR section 21, §173.25
• European ResAP (2004) 3 Approved
Meets European Council Resolution
AP (2004) 3 for use in the processing of
foodstuffs
• Solvent Free
Produced without any solvent
Typical Applications
• Residential Softening
Standard Design Conditions
Bed depth
Service flow rate
Backwash expansion
NaCl concentration for regeneration Regeneration level
NaCl flow rate for regeneration
Rinse rate (slow)
Rinse rate (fast)
• Industrial Softening
> 700 mm
8 - 40 BV/h
50 - 75%
8-15%
8 - 300 g/l
5-8 l/h/l
1-3 bed volumes at regeneration flow rate
3-6 bed volumes at service flow rate
Turbidity
<5.0 NTU
Free chlorine
<1.0 ppm
• Municipal Softening
Standard Packaging
• 25 lit. PE valve bag
• 1000 litre big bag
Resinex KW-8 Plus
™
Strong acid cation softening resin
Pressure Drop
Backwash Expansion
2
2
Flow Rate, gpm/ft
Flow Rate, gpm/ft
32
F)
120
1.0
100
°C
30
°C
40
(10
0.8
F)
0.6
40
0.4
20
0.2
0
0
20
40
60
4
8
80
100
80
60
0
0
0
10
20
400
12
1.4
30
1.2
25
1.0
20
0.8
15
5
50
NaCl regeneration, g/l
320
10
15
20
25
0
Hardness Leakage, ppm as CaCO3
240
Capacity, kg/ft3
Capactiy, eq/lit
160
35
0
40
Hardness Leakage Information
1.6
0.6
30
Flow Rate, m/h
NaCl regeneration, g/l
80
20
20
Capacity Information
0
16
40
Flow Rate, m/h
1.8
12
6°
(8
4°
60
0
5°C
(40°
F)
10
°C
(
50
20
°F
°C
)
(6
30
8°
°C
F)
(8
6°
F)
(6
1.2
Pressure Drop, bar/m
2
80
F)
8°
C
0°
40
Bed Expansion, %
(50
°F
)
24
5°C
100
Pressure Drop, kPa/m
16
(40
°F)
8
10
°C
0
120
0
80
0
5
160
240
320
400
10
15
20
25
10
8
6
4
2
0
NaCl Regeneration, lb/ft3
NaCl Regeneration, lb/ft3
Capacity and Hardness Leakage graphs are shown assuming a service flow of 4 gpm/ft3 (32 l/h/l) and total dissolved solids of 400 ppm and 20 grains of total hardness. The hardness leakage will increase
and the capacity will decrease while increasing total dissolved solids and total hardness.
NOTICE If this product is to be used for potable water treatment, or any food grade application, a special procedure must be applied for the initial run. Please ask your nearest Jacobi office for this
technical bulletin.
Product Packing
25 lit. polyethylene valve bag
Polypropylene FIBCs
48 bags per pallet
CAUTION
(big bag), 1.000 lit.
Strong oxidizing agents such as nitric acid can react violently with ion exchange resins and cause explosive type reactions. Before using strong oxidants, consult sources knowledgeable in the handling of these materials.
NOTICE Due to the progressive nature of the Jacobi Carbons Group and the continually improving design and performance of our products,
we reserve the right to change product specifications without prior notification. The information contained in this datasheet is intended to
assist a customer in the evaluation and selection of products supplied by Jacobi Carbons. The customer is responsible for determining whether
products and the information contained in this document are appropriate for customer’s use. Jacobi Carbons assumes no obligation or liability
for the usage of the information in this datasheet, no guarantees or warranties, expressed or implied, are provided. Jacobi Carbons disclaims
responsibility and the user must accept full responsibility for performance of systems based on this data.
© Copyright 2015. Jacobi, Jacobi Carbons, Resinex, the Resinex and the Jacobi logos are trademarks of Jacobi Carbons, all of which may
or may not be used in certain jurisdiction.
RX-KW8PLUS_e_Rev12_20150602
Lenntech
info@lenntech.com Tel. +31-152-610-900
www.lenntech.com Fax. +31-152-616-289
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