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DESCRIPTION |
Purolite Weak Acid Cation Exchange Resin is a high-capacity ion exchange material with carboxylic acid functional groups attached to a polyacrylic matrix. This resin exhibits exceptional affinity for divalent cations, particularly those associated with bicarbonate alkalinity, and operates most effectively in the pH range of 4.5-14.
Industrial Water Deionization: Primary application in mixed-bed and multi-bed deionization systems for high-purity water production.
Power Plant Water Treatment: Used in condensate polishing and boiler feedwater treatment systems.
Chemical Processing: Removal of acidic contaminants from process streams in chemical manufacturing.
Electronics Industry: Production of ultra-pure water for semiconductor and microelectronics manufacturing.
Pharmaceutical Water Systems: Final polishing in purified water and WFI (Water for Injection) systems.
Type: Strong Base Anion Exchange Resin (Type I)
Matrix: Polystyrene-DVB (Macroporous)
Functional Group: Quaternary Ammonium
Ionic Form As Shipped: Cl⁻
Total Exchange Capacity: ≥1.0 eq/L
Moisture Retention: 50-60%
Particle Size Range: 0.3-1.2 mm (≥95%)
Whole Uncracked Beads: ≥95%
Shipping Weight: 670-720 g/L
Specific Gravity: 1.06-1.10 g/ml
Effective Size: 0.4-0.7 mm
Uniformity Coefficient: ≤1.6
Maximum Operating Temperature: 60°C (OH⁻ form), 100°C (Cl⁻ form
Note: These are general guidelines. Specific parameters must be confirmed with the manufacturer's data sheet.
1. Operating Conditions
Service Flow Rate: 10 - 30 BV/h
Operating Temperature: Up to 60°C (OH⁻ form)
pH Range: 0 - 14
Maximum Operating Pressure: 6 bar
2. Regeneration
Regenerant: NaOH (2-4%)
Regenerant Dosage: 80 - 150 g NaOH/L resin
Regeneration Flow Rate: 2 - 5 BV/h
Contact Time: 30 - 60 minutes
3. Rinsing
Rinse Flow Rate: 5 - 15 BV/h
Rinse Volume: 2 - 4 Bed Volumes
Rinse Endpoint: Effluent conductivity and pH stabilization
4. Performance Indicators
Operating Capacity: 0.8 - 1.0 eq/L (depending on regeneration level)
Silica Leakage: <20 ppb (under proper operating conditions)
Pressure Drop: Typically 0.5 - 1.5 bar/m bed depth
5. Important Considerations
Organic Fouling: Susceptible to fouling by organic matter; pre-treatment recommended
Thermal Limitations: Avoid prolonged exposure to temperatures above 60°C in OH⁻ form
Oxidant Protection: Free chlorine should be <0.1 mg/L to prevent degradation
Pre-treatment: Pre-filtration recommended for suspended solids >5 mg/L
ADVANTAGES |

High Exchange Capacity: Provides substantial anion exchange capacity for efficient deionization.
Excellent Physical Stability: Macroporous structure ensures good mechanical strength and resistance to
osmotic shock.
Good Kinetic Performance: Rapid exchange kinetics suitable for high-flow rate applications.
Effective Silica Removal: Efficiently removes silica and other weakly ionized anions.
Thermal Stability: Maintains performance at elevated temperatures up to 60°C (OH⁻ form).
PACKING |
25Liter Bag
25kg Bag
50kg Plastic Barrel

OUR FACTORY |





| WHY UMEK |
With 28 years in water treatment and 16 years of international market experience, UMEK delivers one-stop solutions trusted in over 120 countries for efficient and reliable results. As the largest industrial water treatment wholesaler in the north, backed by 30+ professionals and a unique culture of mentorship and excellence, we are committed to providing high-quality products and customized services.
We partner with top-tier suppliers like Runxin Valve and Pentair, ensuring certified products with strict quality control. UMEK also offers a value-driven environment, comprehensive training, and growth opportunities, empowering employees and achieving mutual success. Choose UMEK – your partner in expertise, innovation, and sustainable development!

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EXHIBITION |
Water Tech 2023
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| FAQ |
A1. Why choose UMEK for industrial water treatment solutions?
Q: With 28+ years in water treatment and 16+ years of global expertise, UMEK combines innovation, certified quality, and tailored services. As the largest wholesaler in the north, we deliver trusted solutions across 120+ countries, backed by 30+ professionals and partnerships with industry leaders like Runxin Valve and Pentair.
A2. Are UMEK products certified for international standards?
Q: Yes. All products undergo strict quality control and comply with global certifications (e.g., ISO, CE, WRAS). Our partnerships with top-tier suppliers ensure reliability and performance in diverse industrial applications.
A3. Can UMEK provide customized water treatment solutions?
Q: Absolutely. We specialize in tailored services, designing systems to meet unique client needs. Our team collaborates closely with you to ensure optimal efficiency, cost savings, and compliance.
A4. How does UMEK ensure product quality?
Q: Every product is rigorously inspected, tested, and certified. We work exclusively with vetted suppliers like Runxin Valve and Pentair, adhering to international quality benchmarks at every production stage.
A5. What industries does UMEK serve internationally?
Q: We serve 120+ countries across sectors like manufacturing, energy, municipal water, and agriculture. Our solutions adapt to regional regulations, climates, and operational demands for seamless global delivery.
A6. Does UMEK prioritize sustainability in its solutions?
Q: Yes. Sustainability drives our innovation. We optimize water reuse, reduce chemical waste, and integrate energy-efficient technologies to support clients’ environmental and ESG goals.
A7. What post-purchase support does UMEK offer?
Q: Clients receive lifelong technical support, including system maintenance guidance, troubleshooting, and employee training. Our mentorship-driven team ensures your operational success long after installation