Our primary intention will be to provide our clientele a serious and responsible small business relationship, giving personalized attention to all of them for ro membrane 75g 1812 Reverse Osmosis System Membrane, We now have exported to far more than 40 countries and regions, which have gained very good reputation from our costumers everywhere in the entire world. Our primary intention will be to provide our clientele a serious and responsible small business relationship, giving personalized attention to all of them for 1812 RO Membrane, RO Membrane 75g, Our company has already have pass the ISO standard and we are fully respect our customer 's patents and copyrights. If the customer provides their own designs, We will guarantee that they will be the only one can have that solutions. We hoping that with our good items can bring our customers a great fortune. Being one of the earliest RO membranes manufacturers in China, HIDTM ranks the best brands among the Chinese RO membrane industry. Nanofiltration membranes can filter metal ions above two valences in water (generally, the content of monovalent ions in water is very small, and they are all minerals that are beneficial to the human body), while the operating pressure of nanofiltration membranes is much lower than reverse osmosis membranes, and the water output It is much higher than reverse osmosis membranes and can completely remove calcium and magnesium ions that are easy to scale in water. The use of nanofiltration membranes is sufficient to meet the needs of drinking water. - It is a highly selective nanofiltration membrane product specially developed for zero-emission and resource utilization. - The rejection rate of multivalent ion is high, the rejection rate of monovalent ions is low, and the molecular weight cutoff is accurate. - It is also suitable for small analytical drugs Isolation and Purification. - The special grid design is adopted in the inlet flow channel so that the product has more significant advantages in pollution resistance and easy cleaning. Model HNF- 75GPD Component parameters Membrane material Polyamide Structure Roll Effective membrane area (ft²) 4.5 Product performance Standard test TDS 2000mg/L MgSO4 2000mg/L NaCl Operating pressure (MPa)  0.69 Test temperature (°C) 25 Recovery rate(%) 15% PH 6.5~7 Water production (m3/d)/GPD  75 Rejection Rate(%) ≥98(MgSO4) 30-55(NaCl) Note: 1. The performance parameters are measured after the system runs stably for 30 minutes. 2. The deviation range of water production is ±15%. 2.1.5 Important information The correct start-up is essential for the stable operation of the nanofiltration system. Before the nanofiltration system is debugged or restarted under a long- term shutdown state, various equipment, meters, and water quality must be checked and adjusted to ensure that all conditions meet the settings or set values after commissioning. Please refer to the product manual for specific operation steps and precautions. In order to prevent the membrane from being scratched by hard particles, a reliable 5μm security filter without backwashing should be used at the water inlet. When the silicon concentration is too high, a 1μm security filter can be used. The pressure on the water production side of the membrane module must not be higher than the pressure on the feed water side at any time, and the static back pressure must be less than 5 psi. We have probably the most state-of-the-art output equipment, experienced and qualified engineers and workers, recognized good quality manage systems plus a friendly skilled income workforce pre/after-sales support for Factory best selling 75gpd NF Membrane for Water Purifier Parts, Welcome any inquiry to our firm. We will be happy to ascertain helpful business enterprise relationships along with you!