Specialty Resin
ProSelect™ Tannin

PRESSURE DROP - The graph above shows the expected pressure loss per foot of bed depth as a function of flow rate at various temperatures.

Features

  • Complies with USDA & FDA regulations (paragraph 21 CFR173.5) for potable water applications.*
  • Reversable exchange of organics.
  • Superior, physical stability.
* For potable water applications, the resin must be properly pre-treated, usually by multiple exhaustion and regeneration cycles, to insure compliance with extractable levels.
Physical Properties
Polymer Structure
Functional Group
Ionic Form, as shipped
Physical Form
Screen Size Distribution
      +16 mesh (U.S. Std.)
      -40 mesh (U.S. Std.)
      -50 mesh (U.S. Std.)
pH Range
Sphericity
Water Retention
      Chloride Form
Solubility
Approximate Shipping Weight
      Chloride Form
Swelling Ca+2 or Na+ to H+
Total Capacity
      Chloride Form
Unique porous styrene w/ DVB
R-N-(CH3)3+X-
Chloride
Tough, spherical beads
30 to 50 nominal
<10 percent
<10 percent
<1 percent
0 to 14
95+ percent

60 to 75 percent
Insoluble

41 lbs/ft3
32 percent

0.55 to 0.75 meq/ml min
ProSelect™ Tannin is the choice for color, organics, and tannin contaminated waters. It works as an organic screen, either as a stand alone prefilter for a softener, or in some applications as a media which is simply added to an existing softener. ProSelect Tannin will sit on top of the existing softening bed to protect it and remove organic (heme) iron as well. ProSelect Tannin regenerates with salt.

CAUTION: DO NOT MIX ION EXCHANGE RESINS WITH STRONG OXIDIZING AGENTS. Nitric acid and other strong oxidizing agents can cause explosive reactions when mixed with organic materials such as ion exchange resins.


Note: These suggestions and data are based on information we believe to be reliable. However, we do not make any guarantee or warranty. We caution against using these products in any unsafe manner or in violation of any patents. Further, we assume no liability for the consequences of any such actions.
Suggested Operating Conditions
Maximum Temperature
      Chloride Form       
170°F
Minimum Bed Depth 24 inches
Backwash Rate
      50% Bed Expansion @ 60ºF
1.9 gpm
 Regenerant†  10% NaCl & 0.5% NaOH mixture
Regenerate Flow Rate 0.2 to 0.5 gpm/ft3
Regenerate Contact Time At least 60 minutes
Regenerate Level 10 to 15 lbs/ft3 plus
proptional amount of NaOH
Displacement Rinse Rate Same as Regenerate Flow Rate
Displacement Rinse Volume 10 to 15 gal/ft3
Fast Rinse Rate Same as Service Flow Rate
Fast Rinse Volume 35 to 60 gal/ft3
Service Flow Rate 1 to 4 gpm/ft3


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