1. Thoroughly clean the filter housing.

2. The inlet and outlet of the casing are connected to the pipeline of the filtration system, pay attention to the direction when connecting, and ensure that the filter element is in the state of water inlet from the outside and water outlet from the inside.

3. Open the plastic bag at the opening end of the filter element, and check whether the O-ring is intact and in place.

4. Moisten the O-ring and filter holder socket with a suitable wetting agent (such as water).

5. Hold the end of the filter element close to the O-ring, and vertically insert the filter element socket into the filter element socket completely.

6. After inserting all the filter elements, remove the filter element packaging bag, fasten the pressure plate to fix it, and then install the upper head.

7. Open the vent valve on the top of the housing.

8. Open the inlet valve slightly to allow the liquid to enter the housing until the liquid overflows from the vent valve on the top of the housing, at which point close the vent valve.

9. Slowly adjust and open the downstream outlet valve until it is fully opened.

10. Slowly adjust and open the inlet valve until it is fully opened. At this time, the pressure drop between the upstream and downstream of the filter is 0.02Mpa (the initial pressure drop under the determined flow rate)