Contact Us
Product
SOLUTION
Browse full water treatment spare parts at Shuitianlan(STL): ultrapure resin series, filtration membrane products, various filter vessels, branded EDI modules, multiple types of UV sterilizers and original imported water pumps for industrial water purification.
ABOUT US
Shuitianlan(STL) is a professional water treatment consumables distributor focusing on membrane, resin, filter, EDI and disinfection products. With stable supply chain and rich project experience, we serve global water engineering companies with cost-effective products & technical support.
Shuitianlan(STL) matches targeted consumable supporting schemes for petrochemical wastewater recycling, food & beverage production pure water, municipal drinking water purification, helping enterprises reduce water treatment operation cost.
Release Shuitianlan(STL)’s latest product supply information, industry policy & technology trends, and sort out common FAQs of membrane, resin, filter operation & maintenance to solve customers’ daily use problems.
Welcome global water treatment engineering merchants, project contractors to contact Shuitianlan(STL) for product quotation, sample application, customized supporting and long-term supply cooperation.
“Zhengguang” brand 001×7 is a styrene‑divinylbenzene copolymer with 7% cross‑linkage, functionalized with sulfonic acid groups (—SO₃H). It is a cation exchange resin.
hard‑water softening
pure‑water preparation
hydrometallurgy
sugar refining
pharmaceutical production
monosodium glutamate industry
catalyst
dehydrating agent
| Item | Specification |
| Appearance | Yellow‑brown to brown spherical granular beads |
| Shipping form | Sodium form |
| Moisture content % | 45.00 ~ 50.00 |
| Total exchange capacity (mass basis) mmol/g | ≥4.50 |
| Total exchange capacity (volume basis) mmol/ml | ≥1.90 |
| Apparent wet density g/ml | 0.77 ~ 0.87 |
| True wet density g/ml | 1.250 ~ 1.290 |
| Particle size range % | (0.315mm ~ 1.250mm) ≥95.0 |
| Fine particle fraction % | (<0.315mm) ≤1.0 |
| Effective particle size mm | 0.400 ~ 0.700 |
| Uniformity coefficient | ≤ 1.60 |
| Sphericity after attrition % | ≥ 90.00 |
| Item | Reference Value |
| pH range | 1 ~ 14 |
| Max. operating temperature (sodium form) ℃ | 120 |
| Volume expansion upon transformation (Na⁺→H⁺) % | ≤ 10 |
| Working exchange capacity mmol/L | ≥ 1200 |
| Operating flow rate m/h | 15 ~ 30 |
