We know that we only thrive if we can guarantee our combined rate competiveness and good quality advantageous at the same time for Brackish Water RO Membrane High Quality for Pure Water Plant, We promise to try our greatest to deliver you with premium quality and efficient solutions. We know that we only thrive if we can guarantee our combined rate competiveness and good quality advantageous at the same time for brackish water ro membrane, Based on our guiding principle of quality is the key to development, we continually strive to exceed our customers' expectations. As such, we sincerely invite all interested companies to contact us for future cooperation, We welcome old and new customers to hold hands together for exploring and developing; For more information, make sure you feel free to contact us. Thanks. Advanced equipment, strict quality control, customer-orientation service, initiative summary and improvement of defects and extensive industry experience enable us to guarantee more customer satisfaction and reputation which, in return, brings us more orders and benefits. If you are interested in any of our merchandise, please feel free to contact us. Inquiry or visit to our company are warmly welcome. We sincerely hope to start a win-win and friendly partnership with you. You can see more details in our website. Being one of the earliest RO membranes manufacturers in China, HIDTM ranks the best brands among the Chinese RO membrane industry. Each RO membrane is made of HID TM high rejection flat sheet and goes through most stringent manufacturing processes as well as in-house quality inspection & testing till delivery. 4040 series RO membranes are widely used for filtration of tap water, underground water & brackish water; we well serve the industries including commercial drinking/food water treatment, electronics & chemical works, power plants, etc. - HIDTM anti-fouling & high rejection flat sheet (film); - lower energy costs (low pressure models) and higher productivity; - highly stabilized rejection with realized nominal flux; - minimize system CAPEX with HIDTM RO membrane excellent performance-price ratio; - stringent in-house inspection & testing control. Model No. Feed Spacer  thickness (mil) Min. Salt  Rejection (%) Stabilized Salt  Rejection (%) Permeate  Flow Rate (GPD) Test  Pressure (psi) Test water  TDS (ppm) TW-4040XLE 28 97.5 98 2600 100 750 TW-4040ULP 31 98.2 98.8 2400 150 1000 BW-4040LP 31 98.6 99.2 2400 225 1500 BW-4040AF 34 98.7 99.2 2100 225 2000 1. Permeate flow rate and salt rejection is based on testing conditions: 25℃, PH 7.5, 20% recovery. 2. Stabilized salt rejection is generally achieved within 24-48 hours of continuous use, depending upon feedwater characteristics and operating conditions. Model No. Maximum  Operating  Temperature Maximum  Operating  Pressure Feed Water  PH Range,  continuous  operation Maximum Feed Water Turbidity Maximum  Feed Water  SDI Chlorine  Tolerance TW-4040XLE 45℃ 300psi 2-11 1NTU 5 <0.1ppm TW-4040ULP 45℃ 600psi 2-11 1NTU 5 <0.1ppm BW-4040LP 45℃ 600psi 2-11 1NTU 5 <0.1ppm BW-4040AF 45℃ 600psi 2-11 1NTU 5 <0.1ppm To ensure proper startup of RO water treatment systems is essential to prepare the membranes for operating service and to prevent membrane damage due to overfeeding or hydraulic shock. To follow the proper startup procedure (available with water treatment system guide book) also helps ensure that system operating parameters conform to design specifications so that system water quality and productivity goals can be achieved. Before initiating system startup procedures, membrane pretreatment, loading of the membrane elements, instrument calibration and other system checks should be completed. It is CRITICAL to avoid any abrupt pressure or cross-flow variations on the RO membrane elements during start-up, shutdown, cleaning or other sequences to prevent possible membrane damage. During startup, a gradual change from a standstill to operating state is recommended as follows: • Feed pressure should be increased gradually over a 30-90 second time frame. • Cross-flow velocity at set operating point should be achieved gradually over 15-30 seconds. • Permeate obtained from the first hour of operation should be discarded. Keep RO membrane elements moist at all times after initial wetting. If operating limits and guidelines given in this specification are not strictly followed, the limited warranty with the supplier will be null and void. To prevent biological growth during prolonged system shutdowns, it is recommended that RO membrane elements be immersed in a storage solution. The customer is fully responsible for the effects of incompatible chemicals and lubricants on elements. The maximum pressure drop across an entire pressure vessel (housing) is 50 psi (3.4 bar). Avoid static permeate-side backpressure at all times.