Double stage reverse osmosis equipment is a specialized equipment used for water treatment, and the stability of equipment performance directly determines the effectiveness of use. The stability of equipment performance is closely related to whether the usage method is correct. Below, we will take a look at the precautions before shutting down the two-stage reverse osmosis equipment.

Slowly close the inlet control valve of the two-stage reverse osmosis equipment and slowly open the concentrated water control valve to maintain the concentrated water flow.

When the discharge flow rate of the high-pressure pump drops to the minimum flow rate, the high-pressure pump should be stopped.

Before shutting down the dual stage reverse osmosis equipment, the state of the pre-treatment dosing device should be adjusted to ensure that the membrane components remain moist and are properly disinfected and protected against freezing throughout the entire shutdown period.

During the shutdown period, it is necessary to ensure that the temperature and pH value of the storage solution inside the two-stage reverse osmosis equipment meet the specifications.

After flushing, close the concentrated water valve and the production water valve.

When the two-stage reverse osmosis equipment is shut down, the back pressure on the water production side must not exceed 0.07Mpa. The reverse osmosis system should be completely filled with water.

Low pressure flushing of the system should be carried out with qualified pre-treatment water or output water to ensure that the concentrated brine completely flows out of the pressure vessel.

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