HID Low pressure TW-4040XLE RO Membrane
Product Information
Each RO membrane is made of HIDTM 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 plant, etc.
Main Features
- 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.
Performance Specifications
Feed Spacer Thickness(mil) 28
Min Salt Rejection (%) 97.5
Stabilized Salt Rejection (%) 98
Performance Flow Rate (gdp) 2600
Test Pressure (PSI) 100
Test water NaCI (PPM) 750
Membrane Dimensions
Model No.
TW-4040XLE
General Information:
A (inch/mm) 4.0/100.1
B (inch/mm) 40/1016
C(inch/mm) 0.75/19.1
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.
Operation Guidelines
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 first hour of operation should be discarded.
Maximum Operating temperature: 45°C
Maximun Operating Pressure: 300psig
feed water PH range Continuous operation*: 2-11
Maximum Feed water Turbidity: 1NTU
Maximun Feed water SDI: 5
Chlorine Tolerance: <0.1ppm
Important Information
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 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.
Maximum pressure drop across an entire pressure vessel (housing) is 50 psi (3.4 bar).
Avoid static permeate-side backpressure at all times.
