Optimized Filtration for Everyday Water Needs
The High Rejection Nanofiltration Membrane Element BKNF1-4040 is tailored for individuals and households seeking reliable water purification that balances high contaminant removal with beneficial mineral retention. It targets the removal of challenging polyvalent ions while keeping helpful monovalent ions stable, making it suitable for those wanting safe, natural-tasting drinking water. This compact membrane element fits well into home water filtration setups, promising effective desalination and cleaner water from various sources such as spring or well water, enhancing daily hydration and cooking experiences.
Advanced Technology Packed in a Compact Design
Engineered for dependable performance, the Element-BKNF1-4040 features an 85 ft2 active membrane area that supports a permeate flow of approximately 2,200 GPD, combining high salt rejection with energy efficiency. Typical removal rates reach 70% for sodium chloride and over 98% for magnesium sulfate, ensuring excellent reduction of common water contaminants. Operating comfortably under moderate pressure, this membrane allows for sustainable filtration without excessive energy consumption, making it a practical solution for residential systems requiring both effectiveness and affordability.
Versatile Use in Household and Small-Scale Water Treatment
Perfectly suited for applications such as direct drinking water treatment, boiler water purification, and even some wastewater decolorization, the High Rejection Nanofiltration Membrane Element BKNF1-4040 offers wide usability. It can act as a key component in home water softening or as a pretreatment element for more complex reverse osmosis systems, improving overall water quality. Its adaptability to standard filtration setups and consistent production of treated water helps users maintain a reliable supply of healthy water for multiple household uses.
Product Advantages
Thoughtful Structural Design for Seamless Integration
The Element-BKNF1-4040 is developed with compactness and modular adaptability in mind, facilitating smooth integration into existing residential filtration systems without requiring significant space or complex modifications. The membrane’s robust construction enables reliable operation within typical pressure ranges and pH levels commonly found in home water scenarios. This design allows homeowners to upgrade filtration performance easily while maintaining compatibility with their current equipment, ensuring peace of mind and convenience in everyday water management.
Enhanced Performance and User Convenience Combined
Users benefit from the High Rejection Nanofiltration Membrane Element BKNF1’s balance between effective contaminant removal and mineral retention, which promotes water that tastes natural and healthy. Its energy-efficient operation reduces utility costs, while consistent flow rates ensure sufficient water supply for daily household needs. The element’s straightforward maintenance requirements and compatibility with common filters make it accessible for non-expert users, adding value by simplifying water treatment and supporting sustainable usage patterns in residential environments.
It is applicable to the desalination of direct drinking water, spring water, boiler water, also desalination and decolorization of wastewater with high salt concentration.
SPECIFICATIONS & PARAMETERS
| Model | Active Membrane Area ft2(m2) |
Permeate Flow GPD(m3/d) |
Stable Rejection Rate (%) |
Solution Type |
| BKNF1-4040 | 85(7.9) | 2200(8.3) | 50-70 | NaCl |
| 1800(6.8) | >98 | MgSO4 |
| Concentration of Solution | Temperature（℃） | pH Value | Operating Pressure psi(MPa) | Recovery Rate（%） |
| 500mg/L NaCl | 25 | 7.5-8 | 70(0.48) | 15 |
| 2000mg/L MgSO4 | 25 | 7.5-8 | 70(0.48) | 15 |
Notes: The permeate flow of single membrane element may vary with in ±15%.
Operating Limits and Conditions of Membrane Element:
| Max.Working Pressure | 600 psi(4.14MPa) |
| Max. FeedWater Temperature | 45 ℃ |
| Max. FeedWaterSDI15 | 5.0 |
| Max. Feed Water Flow | 3.6m3/h |
| Free Chlorine Concentration of FeedWater | 0.1mg/L |
| pH Range of FeedWaterDuring Continuous Operation | 3-10 |
| pH Range of FeedWaterDuring Chemical Cleaning | 1-13 |
| Max. Pressure Drop of Single Membrane Element | 15psi(0.1Mpa) |
