SW30-2540 (2.5 Inch): Compact High-Efficiency RO Membrane

SW30-2540 (2.5 Inch): Compact High-Efficiency RO Membrane

SW30-2540 (2.5 Inch Diameter) is a compact high-efficiency RO membrane element with a spiral wound structure, specially developed for small and medium-sized water treatment scenarios with limited installation space.

1. Product Introduction

SW30-2540 (2.5 Inch Diameter) is a compact high-efficiency RO membrane element with a spiral wound structure, specially developed for small and medium-sized water treatment scenarios with limited installation space. It adopts high-purity aromatic polyamide composite membrane material, which is non-toxic, tasteless and free of harmful substance leaching, ensuring the safety of produced water and complying with food-grade and laboratory-grade water quality requirements. The membrane element adopts a standardized 2.5-inch diameter design (outer diameter × length: 2.5×40 inches), with a compact structure and light weight, which can be directly matched with most small and medium-sized RO water treatment systems, commercial water purifiers and laboratory water treatment equipment. Unlike ordinary large-diameter RO membranes, SW30-2540 focuses on "compactness, efficiency and practicability", integrating optimized flow channel design and precision coating technology, which can effectively reduce concentration polarization, slow down membrane fouling, and ensure stable performance during long-term operation. It is mainly used for small-scale pure water preparation, commercial water purification and laboratory water treatment, and can adapt to various water quality environments, providing reliable water purification support for small and medium-sized scenarios.

2. Application Scenarios

SW30-2540 (2.5 Inch Diameter) has strong adaptability and is widely used in various small and medium-sized water treatment scenarios, relying on its core advantages of compact size and stable performance. 

First, small industrial pure water preparation: applicable to small electronic workshops, small chemical plants and small pharmaceutical workshops, used to prepare production water that meets process requirements, with small floor space and low energy consumption. 

Second, commercial water purification: used in convenience stores, restaurants, office buildings and gyms, providing clean drinking water for customers and employees, matching small commercial water purifiers, easy to install and maintain. 

Third, laboratory water treatment: applicable to chemical laboratories, biological laboratories and medical laboratories, used to prepare high-purity experimental water, ensuring the accuracy and reliability of experimental results. 

Fourth, small-scale sewage reuse: used in small factories and rural sewage treatment, realizing the recycling of domestic and industrial sewage, saving water resources. Fifth, household large-flow water purifiers: suitable for families with large water demand, matching large-flow household RO water purifiers, providing sufficient clean water while saving installation space. 

In addition, it is also applicable to small-scale emergency water purification equipment and gas pipeline supporting small water treatment systems, providing professional water purification solutions for various small and medium-sized scenarios.

3. Technical Parameters

The technical parameters of SW30-2540 (2.5 Inch Diameter) are strictly formulated according to small and medium-sized water treatment requirements, fully reflecting its compact and efficient performance characteristics, and the core parameters are as follows: membrane type is spiral wound aromatic polyamide composite membrane; specification is 2.5-inch (outer diameter × length: 2.5×40 inches, dry weight 2.3kg); nominal desalination rate ≥99.5%, bacteria rejection rate ≥99.99%, virus rejection rate ≥99.99%, organic matter rejection rate ≥99.0%; under standard conditions (25℃, 0.6MPa), water production flux is 80-100gpd (gallons per day), which is adjustable according to application scenarios; recommended operating pressure is 0.4-1.8MPa, operating temperature is 5-45℃, inlet water pH value is 2-11 (cleaning pH value is 1-12); inlet water Silt Density Index (SDI) ≤3, inlet water turbidity ≤0.5NTU; single membrane recovery rate is 15-25% (small and medium-sized systems); service life can reach 2-4 years under normal maintenance; cleaning cycle is 60-90 days, flux recovery rate after cleaning ≥98%; maximum withstand pressure is 2.5MPa, maximum pressure drop ≤0.08MPa.

4. Product Advantages

The core advantages of SW30-2540 (2.5 Inch Diameter) are concentrated in compactness, efficiency, stability, easy installation and cost-saving, which accurately solve the key pain points of small and medium-sized water treatment. First, compact size and space-saving: 2.5-inch diameter design, small volume and light weight, suitable for scenarios with limited installation space, easy to install and replace, reducing installation difficulty and space cost. Second, high desalination rate and high efficiency: nominal desalination rate ≥99.5%, which can effectively remove salts, heavy metals, bacteria and other harmful substances in water, ensuring that the produced water meets the requirements of small industrial, commercial and laboratory scenarios. 

Third, stable flux: optimized flow channel design and precision coating technology reduce concentration polarization, ensure uniform water flow distribution, and the flux attenuation is less than 10% within one year of operation. 

Fourth, easy installation and maintenance: standardized interface design, compatible with most small and medium-sized RO systems, no professional skills required for replacement, reducing maintenance time and labor costs. 

Fifth, wide adaptability: applicable to various water quality environments (raw water TDS 500-8000mg/L), adapting to small industrial, commercial, laboratory and household scenarios. Sixth, cost-saving: long service life (2-4 years), low cleaning frequency, reducing membrane replacement and maintenance costs.

5. Application Procedures

Combined with years of practical application experience, the application procedures of SW30-2540 (2.5 Inch Diameter) are simple and standardized, ensuring safe and efficient operation. Pre-installation preparation: Check the integrity of the membrane element and the validity of the quality inspection report, confirm that the surface and sealing ring are not damaged; clean the system pipeline, remove impurities such as rust and sediment, and prepare installation tools (wrench, screwdriver) and professional water quality monitoring instruments. Membrane element installation: Install it into the corresponding small-sized pressure vessel according to the specifications, ensure that the connection is tight and the direction is correct (water inlet and outlet cannot be reversed), and install the sealing ring to prevent water leakage. System commissioning: Turn on the power and water source, adjust the pressure to the recommended value (0.4-1.8MPa), adjust the flow rate to the standard range, run the system for 30-60 minutes, and check whether the desalination rate, water quality and other parameters meet the requirements. Normal operation: Regularly monitor the pressure, flux, desalination rate and water quality, and keep detailed records; if the pressure increases by 0.08MPa or the flux decreases by 15%, clean it in time. Membrane cleaning: Use professional cleaning solution (acidic or alkaline) according to the pollution type, circulate and clean at 25-35℃ for 30-60 minutes, rinse with clean water until neutral, then restart. Daily maintenance: After the system is shut down, rinse the membrane element for 5-10 minutes; regularly check the sealing ring, and properly store it in protective solution when not in use for a long time.

6. Quality Standards

SW30-2540 (2.5 Inch Diameter) strictly follows international and domestic quality standards and quality management systems, ensuring that each product meets high-performance and safety requirements. Internationally, it complies with ISO 9001 quality management system certification, ASTM D4516-00(2020) test certification, NSF international drinking water safety certification and WHO drinking water quality certification. Domestically, it meets GB/T 30307-2013 "Reverse Osmosis Membrane Elements for Water Treatment", GB/T 5749-2022 "Sanitary Standards for Drinking Water" and GB/T 17219-2025 "Hygienic Safety Evaluation of Drinking Water Transmission and Distribution Equipment, Protective Materials and Water Treatment Materials". Core quality requirements: Membrane material meets industrial-grade and food-grade standards, no harmful substances leached; nominal desalination rate ≥99.5%, flux recovery rate after cleaning ≥98%; each unit is subjected to 60 minutes of stable testing before leaving the factory, including performance parameter verification and structure integrity detection; the membrane has no deformation or water leakage under maximum pressure; each batch of products has a unique quality inspection code and test report, which is fully traceable.

7. Working Principle

SW30-2540 (2.5 Inch Diameter) realizes high-precision water purification based on the reverse osmosis principle, combined with advanced membrane material technology and optimized spiral wound structure. Osmosis is a natural phenomenon in which water molecules spontaneously flow from a low concentration solution to a high concentration solution. Reverse osmosis applies a pressure greater than the osmotic pressure (0.4-1.8MPa) on the high concentration side (raw water side), forcing water molecules to pass through the semi-permeable membrane (pore size only 0.1 nanometers) to the low concentration side (produced water side), while retaining salts, heavy metals, bacteria and other harmful substances. The high-purity aromatic polyamide composite membrane of SW30-2540 has a dense and uniform structure, ensuring high desalination rate and purification efficiency; the optimized spiral wound structure and compact design make the water flow evenly distributed on the membrane surface, reducing concentration polarization, slowing down membrane fouling, and ensuring stable flux and performance consistency during long-term operation, which is especially suitable for small and medium-sized water treatment systems with limited flow and space.

8. Future Prospects

With the increasing demand for small and medium-sized water treatment scenarios (such as small enterprises, commercial places and laboratories) and the emphasis on space saving and energy conservation, SW30-2540 (2.5 Inch Diameter), with its core advantages of compact size, high efficiency and stability, has broad development prospects. In the future, it will further optimize membrane material and structural design, improve desalination rate and flux, reduce energy consumption, and adapt to more complex small-scale water quality environments. It will also realize intelligent upgrading, integrating Internet of Things and sensor technology to realize real-time monitoring of membrane performance, automatic reminder of cleaning and replacement, and improve operation and maintenance efficiency. At the same time, it will expand application scenarios to new energy small-scale water treatment, rural water purification and other fields, providing high-quality water purification support for small-scale green development. In addition, with the continuous standardization of small and medium-sized RO membranes, SW30-2540 will further improve product consistency and reliability, becoming a core choice for small and medium-sized water treatment scenarios, and promoting the sustainable development of the small-scale water treatment industry.

9. Conclusion

SW30-2540 (2.5 Inch Diameter) is a compact high-efficiency RO membrane element integrating compact size, high desalination rate, stable flux, easy installation and wide adaptability, which fully complies with international and domestic strict quality standards. It adopts high-purity aromatic polyamide composite membrane material and optimized spiral wound structure, which can effectively remove various harmful substances in water, provide stable and qualified produced water, and solve the key pain points of small and medium-sized water treatment such as limited installation space, unstable water quality and high maintenance cost. Widely applicable to small industrial pure water preparation, commercial water purification, laboratory water treatment, small-scale sewage reuse and household large-flow water purifiers, it ensures the normal operation of small and medium-sized water treatment systems, reduces operation and maintenance costs, and becomes a core choice for modern small and medium-sized water treatment. With its excellent performance and wide adaptability, it will play a more important role in the field of small and medium-sized water treatment in the future, helping to promote the green, sustainable and standardized development of the small-scale water treatment industry.

10. Frequently Asked Questions (FAQs)

Q1: What is the core feature of SW30-2540 (2.5 Inch Diameter)? 

A1: Its core feature is compact size (2.5-inch diameter) and high desalination rate (≥99.5%), with stable flux, easy installation and wide adaptability, which can stably operate in small and medium-sized water treatment scenarios with limited space.

Q2: What is the service life of SW30-2540 (2.5 Inch Diameter), and how to extend it? 

A2: The service life is 2-4 years under normal maintenance. Regularly clean the membrane element according to the fouling situation, keep the operating parameters within the recommended range, avoid long-term contact with strong oxidants, replace the damaged sealing ring in time, and properly pretreat the raw water to effectively extend the service life.

Q3: What is the applicable raw water TDS range of SW30-2540 (2.5 Inch Diameter)? 

A3: It is mainly applicable to raw water with a TDS of 500-8000mg/L, such as small industrial wastewater, groundwater, tap water and small-scale sewage, and can adapt to slight fluctuations in salt content, which is suitable for most small and medium-sized water treatment scenarios.

Q4: Can SW30-2540 (2.5 Inch Diameter) be used in ordinary household water purifiers? 

A4: It is suitable for household large-flow RO water purifiers, but not for ordinary small household water purifiers (usually 1812/2012 specifications). It is mainly designed for large-flow household scenarios or small commercial scenarios.

Q5: How to confirm the authenticity and quality of SW30-2540 (2.5 Inch Diameter)? 

A5: Each SW30-2540 (2.5 Inch Diameter) membrane element is equipped with a unique quality inspection code, which can be queried on the official quality inspection platform to verify the authenticity and quality; at the same time, each batch of products is accompanied by a formal test report, which can be used to confirm the performance parameters.