ULP-4021 and ULP-2521: Uncovering the Difference in Commercial RO Membrane Performance

Commercial reverse osmosis (RO) membrane technology plays a vital role in water treatment and purification processes across industries. In this field, two important RO membrane models have attracted much attention: ULP-4021 and ULP-2521. Understanding their key differences is critical for businesses seeking optimal performance and efficiency from their water treatment systems.


ULP-4021 membrane has higher permeate flow rate compared to ULP-2521 membrane. This property makes it particularly suitable for water treatment applications requiring rapid purification. The enhanced flow rate of ULP-4021 enables businesses to process more water in less time. Industries such as food and beverage production, pharmaceuticals and wastewater treatment plants can benefit from ULP-4021's increased productivity and reduced operational downtime.

In contrast, ULP-2521 performs well in space-constrained situations. The membrane has a compact design and slightly smaller dimensions and is widely used in applications requiring compactness, such as portable water purifiers and residential systems. In addition, ULP-2521 has excellent retention rates and can effectively remove high proportions of contaminants, including dissolved solids, salts and impurities present in feed water.

Both membranes exhibit excellent durability, but they differ in terms of longevity and stain resistance. ULP-4021 has a specialized anti-fouling design for longer life and increased resistance to organic and inorganic fouling. This resiliency makes it ideal for applications involving water sources with potentially high concentrations of fouling agents, such as industrial recycling systems where uptime and maintenance costs are critical factors. ULP-2521, on the other hand, has slightly less pronounced antifouling properties, mainly due to its compact size. However, when applied to water sources with relatively low contamination potential, the membrane can still provide excellent performance and operating efficiency.

As businesses increasingly focus on sustainability, it’s worth noting that both membranes are designed to conserve energy, thereby reducing operating costs and environmental impact. The energy-efficient design of these membranes ensures optimal water recovery, significantly reduces wastewater production and promotes water conservation.

In summary, ULP-4021 and ULP-2521 represent two different options in the commercial RO membrane field. Selecting the most appropriate membrane for specific water treatment requirements depends on factors such as permeate flow requirements, available space, fouling potential, and overall system goals. By understanding these differences, companies can make informed decisions to maximize performance and take advantage of the benefits of commercial reverse osmosis membrane technology in their water treatment operations.

Our Jiangsu Bangtec Environmental Sci-Tech Co,Ltd, was founded by Dr. Zhao Huiyu, who is a“high-level talent” in Jiangsu Province and holds adoctorate degree from Chinese Academy of Sciences.The company brings together manyhigh-level talents and top experts in the industryfrom China and other countries. We produce both ULP-4021 and ULP-2521, if you are interested in our company and our products, you can contact us.


Post time: Oct-21-2023