The standard pressure for membrane components is the pressure applied by RO membrane component manufacturers under the standard testing standards. Taking a certain company's bottom pressure product series as an example, the standard testing pressure is 1.155Mpa (225psi or 15.5bar).

The application pressure of RO membrane components is a necessary pressure for the specific operation of RO membrane components. Many design or application personnel believe that the standard pressure of RO membrane components is the application pressure of RO membrane components, which sometimes leads to very high water production in pure water equipment. Customers feel that the product quality of RO membrane component manufacturers is very good. It is unclear that at this time, the average water flux of pure water equipment is too high, exceeding the regulations on water production in the detailed design scheme, which has laid the foundation for the long-term safe operation of RO reverse osmosis pure water equipment. Sometimes when the water production of the system software is not high, it may be felt that the quality of the RO membrane component manufacturer is not good, and claims may be made to the RO membrane component manufacturer.

In fact, the standard pressure of RO membrane components in pure water equipment is fundamentally different from the application pressure of RO membrane components. The standard pressure of RO membrane components is set by RO membrane component manufacturers to better detect the quality of RO membrane components, while the specific application pressure is subject to the hazards of factors such as temperature, average water flux selection value, water infiltration salinity, system software utilization rate, and RO membrane component type. The application pressure of RO membrane components should vary according to the different factors. The simple method is to conduct specific calculations based on the calculation software provided by the RO membrane component manufacturer.

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