EDM Resin Extrepure Ion Exchange Resin Ion Exchange Resin Filter Cartridge

Items

Specification

Polymer Matrix Structure

Crosslinked Polystyrene Divinylbenzene

Physical Form and Appearance

Light yellow color Spherical particles 

Functional Groups

R-SO₃¯

Ionic Form ,as shipped

Na⁺

Total Capacity, Na⁺ form, wet, volumetric

≥1.3 eq/l min

Moisture Retention, Na⁺ form

45-50%

Particle Size Range

0.315mm-1.25mm

<300 µm (max.)

1% 

Uniformity Coefficient (max.)

1.6

effective size

0.4-0.7mm

Reversible Swelling

Na⁺ → H⁺ (max.)

10%

Ca²⁺→Na⁺(max.)

5%

Shipping Weight (approx.)

770 -870g/l

Specific Gravity, moist Na⁺ Form

1.27

Temperature Limit

120°C (250 °F) 

pH Range, Stability

0 - 14

Maximum Temperature

  Na⁺ Form

120°C (248^oF) max.

H⁺ Form

100°C (212^oF) max.

Backwash Rate

25 to 50% Bed Expansion

Regenerant Concentration

Hydrogen Cycle

3% HCl or 2 to 3% H₂SO₄

 Sodium Cycle

6% to 8% NaCl or 3% NaOH

Regenerant  dosage

HC1 or  H₂SO₄

HC1 or H₂SO₄ volume:resin volume =3:1

NaCl 

NaCl volume:resin volume =2:1

NaOH

NaOH volume:resin volume =3:1

Regenerant Flow Rate

2 to 4 BV/h

Regenerant  contact Time

At least 40 minutes

Service Flow Rate

10-25m/h