It can be our duty to satisfy your preferences and successfully serve you. Your pleasure is our best reward. We have been looking forward to the go to for joint expansion for Fiber 80 40 RO Membrane Direct Supplier Factory Price reverse osmosis, The mission of our firm should be to provide the best high quality goods with finest price tag. We've been on the lookout forward to doing organization with you! It can be our duty to satisfy your preferences and successfully serve you. Your pleasure is our best reward. We have been looking forward to the go to for joint expansion for 80 40 RO Membrane, Fiber 8040 RO Membrane, They are sturdy modeling and promoting effectively all over the world. Never ever disappearing major functions within a quick time, it's a have to in your case of fantastic good quality. Guided by the principle of Prudence, Efficiency, Union and Innovation. the corporation. ake an excellent efforts to expand its international trade, raise its organization. rofit and raise its export scale. We've been confident that we've been going to have a bright prospect and to be distributed all over the world in the years to come. Nanofiltration membranes are mostly charged membranes, with negative charges on the surface, which can intercept cations with more than two valences in water and retain monovalent ions (such as sodium ions and potassium ions). Therefore, nanofiltration membranes retain some minerals in the water. Material element. Among the common heavy metal pollutants, arsenic mainly exists in the water as trivalent arsenic ions and pentavalent arsenic ions; chromium mainly exists in the form of trivalent and hexavalent ions in nature. So the nanofiltration membrane can also filter out most of the heavy metals. It can also remove part of calcium and magnesium, so it has a certain effect in softening hard water. At the same time, nanofiltration membranes can reduce organic matter in water and carcinogens such as trihalomethanes produced during chlorination and disinfection of drinking water. The smallest known virus has a diameter of 18nm-22nm (data from Wikipedia). Compared with the pore size of nanofiltration membranes of 1-2nm, bacteria and viruses are relatively large, so nanofiltration membranes can be effective Removal of bacteria and viruses does not seem so difficult to imagine. The working principle of the nanofiltration membrane is partially similar to that of the reverse osmosis membrane. The pressure it bears is lower than that of reverse osmosis membrane, so it produces less wastewater than reverse osmosis membrane. 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-4040HF HNF-4040HR HNF-8040HF HNF-8040HR Component parameters Membrane material Polyamide Structure Roll Effective membrane area (m²) 7.6 37 Inlet grid thickness (mil) 34 34 Product performance Standard test TDS 2000mg/L MgSO42000mg/L NaCl 2000mg/L MgSO42000mg/L NaCl Operating pressure (MPa)  0.5  0.75  0.5   0.75 Test temperature (°C) 25 Recovery rate(%) 15% PH 6.5~7 Water production (m3/d)/GPD  8/2100  7.6/2000  40/10500  38/10000 Rejection Rate(%) ≥95(MgSO4) 30±10(NaCl) ≥98.5(MgSO4) 50±10(NaCl)  ≥95(MgSO4)30±10(NaCl)  ≥98.5(MgSO4)50±10(NaCl) Application limit Maximum operating pressure (MPa)/psi 4.1/600 Maximum inlet water flow (m3/h)/GPM 3.6/16 17/75 Inlet water temperature range (° C) 5~45 Influent PH range 3~10 Cleaning PH range 2~11 Maximum influent turbidity NTU 1 Maximum water inlet SDI15 5 Influent residual chlorine control (mg /L) <0.1 Maximum pressure drop of single component (psi) 15 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 insist on offering good quality products with a good business concept, honest income plus the ideal and fast service. it will bring you not only the premium quality solution and huge profit, but by far the most significant should be to occupy the endless market for Nanofiltration Membrane (NF membrane), Our market share of our solutions has greatly increased yearly. If you are interested in any of our items or would like to discuss a custom order, you should feel free to contact us. We're looking forward to forming successful business relationships with new clients around the world in the near future. We're looking forward to your inquiry and order. E-mail: info@ro-hid.com