You are watching: How much psi can a 2 liter bottle hold
Tue Oct 12 22:25:05 2021 GMT
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Q: What"s the maximum safe pressure I should try toput in a 2-liter bottle?
A: A 2-liter plastic bottle will easily hold 100 psi without rupturing.Bottles of this size, that are in good condition, start rupturing at about 130 psi.Some go as high as 170 psi before they rupture.
It is impossible to know when the bottle on your rocket will rupture without bursting it.Of course this would render the bottle unusable.It is also impossible to tell if the bottle has been damaged in a way that will lower it"s burst pressure.Just repeatedly presurizing your rocket may also reduce its ability to hold pressure.For these reasons, you should always operate as if the rocket will burst during pressurization. This is why the safety code says youshould presurize the rocket from a distance that is related to the operating pressure.From the safety code:"4. Compressed Gas Safety. A safe distance shall bemaintained at all times between persons and pressurized water rocketsor launchers.
|With Eye Protection||Without Eye Protection|
|Up to 60 psi||10’||20’|
|Above 60 psi||20’||40’|