Pressure reducing valve for door-to-door water supply

Please tell me how to adjust the pressure. (There is a video in the answer details)

  1. Remove the cap.
  2. Insert a hex wrench (flat 8).
  3. Adjust the pressure while looking at the pressure gauge (clockwise rise, counterclockwise fall).
  4. After the adjustment is completed, attach the cap.
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RD44N－F □

Contains characters that indicate pressure classification and options.

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