Fujian Huamo Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of low operating cost edi in China. If you're going to wholesale bulk low operating cost edi made in China, welcome to get catalog and price list from our factory. All custom made products are with high quality and competitive price. Also, OEM service is available.
Product Details
Low operating cost EDI module for High Purity Water Production is a continuous electrodeionization solution designed for RO-polished water treatment systems requiring stable ultra-pure water quality and reduced operating costs. By continuously removing residual ions without chemical regeneration, the module eliminates the need for acid and caustic handling while providing a reliable alternative to conventional mixed-bed ion exchange systems. It is widely used in laboratory, pharmaceutical, electronics, power generation, and other high-purity water applications.
Designed for long-term continuous operation, the module can produce water with resistivity up to 15–18.25 MΩ·cm when supplied with RO permeate water of 1–10 μS/cm conductivity. Manufactured under strict quality control procedures and supported by ISO 9001, ISO 14001, CE, and RoHS compliance, it delivers consistent performance, dependable product quality, and seamless integration into OEM water treatment equipment and ultrapure water production systems.
Operating Performance Parameters
Our EDI module maintain stable performance under defined hydraulic, thermal, and water quality conditions. The key operating parameters are summarized below:
Parameter | Specification |
Recovery Rate | 90–95% |
Flow Rate | 50L per hour |
Product Water Quality | 15–18.25 MΩ·cm |
Operating Temperature | 5–35°C (Optimal: 25°C) |
Feed Water Requirement | RO permeate water required |
Quality Control & Testing Process
Quality control is integrated throughout every stage of the manufacturing process, from incoming material inspection to final performance validation. Rather than focusing solely on individual specifications, we emphasize three critical factors that determine Low operating cost EDI performance: structural consistency, electrical stability, and hydraulic balance.
During production, key components including ion exchange resins, membranes, and spacer materials undergo strict inspection to ensure batch-to-batch consistency. Precise stack assembly and controlled compression help maintain uniform flow distribution and stable electrical performance throughout the module. Each EDI stack is then subjected to comprehensive operational testing using RO permeate feed water with conductivity of 1–10 μS/cm.
Before shipment, every low operating cost EDI module undergoes continuous performance verification to confirm stable operation and consistent ultra-pure water production. Product water resistivity is validated at up to 15–18.25 MΩ·cm under specified operating conditions, while sealing integrity, flow distribution, and electrical performance are thoroughly inspected to ensure reliable long-term operation in demanding high-purity water applications.
FAQ
Q: Can the EDI module fully replace mixed-bed ion exchange resin systems?
A: Yes, in continuous ultrapure water systems, the EDI module is commonly used to replace mixed-bed resin polishing units. Unlike mixed-bed systems, EDI does not require acid/alkali regeneration or resin replacement, which reduces chemical consumption and maintenance downtime while maintaining stable resistivity within 15–18.25 MΩ·cm.
Q: What is the expected service life of the EDI module under continuous operation?
A: Under properly controlled RO feed conditions and stable operating parameters (90–95% recovery, 5–35°C temperature range, and low impurity loading), the EDI stack is designed for long-term continuous operation. Service life depends primarily on feed water quality stability, especially silica, hardness, and CO₂ levels, rather than fixed time-based replacement.
Q: How often does the system require maintenance or cleaning?
A: The EDI module operates in a continuous mode without chemical regeneration. Routine maintenance is mainly limited to periodic inspection of electrical connections, flow stability, and inlet water quality. If RO pretreatment is stable, chemical cleaning is rarely required; most performance issues are related to feed water deviation rather than internal fouling.