Flow restrictor

This is not a peep valve. It is a flow restrictor that can be user in extreme situations as a peep valve.

Once set vertically, scale the inside part in X and Y to 97% and let Z to 100%. If Z is also scaled, the thread is modified and it won't screw on the outside part.

If you are unable to scale only the X and Y, I have also uploaded a 97% scale model to print as it is

Let the outside part as is. No scale needed