Understanding thrust needed for set PSI

force = number of bottles x area per bottle x pressure

area per bottle = diameter of opening x diameter of opening x 0.785

you also need to add some extra force to get a tight seal (depends upon seal material used.) For a flat rubber seal on soft drink type bottles (small opening) I would try about 5 lb. extra per bottle.

A mechanism that provides an adjustable force would be a good idea. (air cylinder with pressure regulator is one way to do it).

Dear Paul:

Some bottlers seal at atmospheric pressure, but have added one "drop" of LO2 just prior to capping...

David A. Smith

I hope you found both Bill and David's responses helpful.

You had one more question that wasn't directly addressed, To 'cork' a bottle with no excess gas pressure at all, still takes a shove on the cork.

You need to specify that. Then add the cork area times the internal pressure that you are having to cork. (You will easily realise the corking force has to be greater than the force from the internal pressure, or the bottle will immediately uncork itself again....)

And you are accustomed to expressing force as pounds force as llbs (f) In the SI system, force is given in newtons, which is a force of about one quarter pound apple pressing down in your hand, or more precisely, force in pounds X 0.455 kg/lb X 9.8 N/kg = force in newtons so lb (force) X 4.46 = force in newtons, abbreviated N and force in N = force in lbs / 4.46

Thrust is another word for force.

Brian W