Need Advice: Passing a Ball Bearing from Air to Water

[Frank Dorrian]

TL;DR

A one way valve that could facilitate transport of a metal ball bearing between air and a fluid (I.e. water) whilst remaining water tight

Hi all, I'm new to this but joined in the hope someone with more experience could provide some advice. In a personal project, I have a particular design dilemma where I am trying to pass a metal ball bearing (or any other spherical shaped solid) from a column of air into a column of water without the water passing back up.

If anyone has any bright ideas as to what one way valve would be best for this situation I would love to hear your suggestions!

Much love
Frank

 

[anorlunda]

I think you need a sketch. My first reading of your description leads me to think of a BB gun firing a BB projectile into a body of water. I'm pretty sure that's not what you mean.

You can drag-drop an image into a post, or click on the Attach files button.

 

[vxiaoyu18]

If you think about how the ball is inflated, maybe you'll get an idea. Using the soft glue will allow air to follow the ball.

 

[Torbert]

A ball valve is a ball with a hole drilled through, set in a sphere with matching holes at 180*. Rotation aligns or misaligns the holes.
Plugging one end of the rotating ball would allow a bearing (or other material) to be placed in the remaining end and be rotated to the liquid without breaking the air/liquid seal.
Available from under 3mm to over 75mm at pipe supply businesses.

This may not apply, depending on requirements not available without a sketch.