China's Leading MBR Membrane Manufacturer
Dual-Port Steel Core Design — Built for Large-Scale MBR Systems
SPERTA DualPort™ MBR membrane features stainless steel tubes on both sides, acting as structural support and water collection channels. This dual-port design improves mechanical strength and flow distribution, making installation on cassette systems more stable and efficient. An ideal choice for large-scale municipal and industrial MBR projects.
Reliable hollow fiber membrane technology designed for stable operation in municipal and industrial MBR systems.
While membrane structure varies by product design, all SPERTA modules are built on the same proven hollow fiber membrane technology.
SPERTA MBR membranes are designed for submerged applications in municipal and industrial wastewater treatment plants.
Each module utilizes reinforced PVDF hollow fibers with PET inner support, providing high mechanical strength and stable operation under elevated MLSS conditions.
Operating in an outside-in filtration mode, the membranes deliver high-quality permeate with TSS below 1 mg/L.
A hydrophilic, non-ionic membrane surface reduces fouling and helps maintain stable flux, minimizing chemical cleaning frequency and operating costs.
| Parameter | SP-MBR-DP-40 | SP-MBR-DP-25 | SP-MBR-DP-20 | SP-MBR-DP-15 | SP-MBR-DP-10 | SP-MBR-DP-06 |
|---|---|---|---|---|---|---|
| Effective Area (m²) | 40 | 25 | 20 | 15 | 10 | 6 |
| Size H×L×W (mm) | 2000×1250×30 | 1500×1250×30 | 1300×1250×30 | 1500×680×30 | 1300×680×30 | 1125×480×25 |
| Flux Rate (L/m²·hr) | 10~30 | 10~30 | 10~30 | 10~30 | 10~30 | 10~30 |
| Pore Size (μm) | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
| Fiber OD/ID (mm) | 1.65/0.55 | 2.0/0.9 | 2.0/0.9 | 2.0/0.9 | 2.0/0.9 | 2.0/0.9 |
| Membrane Material | Reinforced PVDF + PET | |||||
| Header Material | ABS | |||||
| Surface Properties | Non-ionic & Hydrophilic | |||||
| Flow Path | Outside-In | |||||
* Custom sizes available on request. Contact SPERTA sales & engineering team for project-specific configurations.
Dual-port configuration enables uniform water collection from both sides of the membrane, improving flow balance and overall system stability — reducing localized fouling and uneven loading across the cassette.
Stainless steel SUS304 / SUS316L tubes run through both ports, acting simultaneously as structural support and water collection channels. This delivers high rigidity and resistance under prolonged high-load operating conditions.
With modules up to 40 m² effective area, DualPort™ delivers the membrane density needed for large footprint cassette configurations in municipal and industrial MBR systems.
The rigid dual-steel-core structure allows easier and more secure positioning into cassette frames, reducing alignment issues. A consistent module profile simplifies cassette design and standardizes on-site assembly procedures.
The dual-side open structure allows convenient access to both headers during maintenance. This reduces downtime and makes DualPort™ a practical choice for plants where operational continuity is critical.
DualPort™ ensures stable filtration performance in large-scale MBR systems under high MLSS conditions. The reinforced fiber and dual-port steel core maintain consistent effluent quality over long-term operation.
The DualPort™ design integrates stainless steel tubes on both sides, serving as structural support and water collection channels.
Dual-Port structure provides better load resistance, more reliable operation, and long-term durability in demanding environments.
| Feature | UniSeal™ | DualPort™ |
|---|---|---|
| Structure | Single connection | Dual steel core |
| Installation | Fast, tool-free | Standard installation |
| Mechanical Strength | Medium | High |
| Flow Distribution | Single-side | Dual-port balanced |
| Best For | Compact systems | Large-scale plants |
| Long-Term Stability | Good | Excellent |
Manufactured in our dedicated membrane production facility with strict process control to ensure consistent membrane quality and performance.
SPERTA uses high-strength braided reinforcement tubes to provide internal mechanical support for membrane fibers. Standard tensile strength reaches over 200N, with higher-strength options available upon request.
Reinforcement tubes are produced through automated continuous production lines, ensuring stable output quality and enabling fast availability through efficient inventory management.
SPERTA utilizes proprietary membrane fiber formation techniques to create a uniform PVDF layer on the reinforcement structure, ensuring consistent pore distribution and strong anti-fouling performance.
After initial performance inspection, membrane fibers are cut to required lengths based on module design specifications, ensuring dimensional accuracy for downstream assembly.
Membrane fibers are precisely potted using high-strength epoxy resin and assembled into DualPort™ modules, ensuring reliable sealing, structural stability, and uniform permeate collection.
Each membrane module undergoes water testing to verify structural integrity and stable filtration performance before it is cleared for packaging and shipment.
Packaging is customized based on transport and project requirements — using export-grade protective crates to ensure product safety and cleanliness during international delivery.
Products are shipped globally and delivered ready for cassette assembly or direct system integration — supporting both new MBR installations and large-scale membrane replacement projects.
All membrane components are produced and inspected in-house — from fiber spinning to final module assembly. Every SPERTA DualPort™ module is manufactured under strict quality control standards, ensuring consistent performance and reliable long-term operation.
Product Quality
Every DualPort™ membrane module is manufactured and inspected in-house — built for reliable long-term performance in demanding MBR applications.
Our Partners
SPERTA regularly hosts engineering partners, EPC contractors, system integrators, and project owners at our office and manufacturing facilities. These visits allow direct technical discussions, hands-on product demonstrations, and closer cooperation on MBR membrane projects worldwide.
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