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Propane preasures

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Propane preasures

Unread postAuthor: jjjd » Sat Mar 24, 2007 10:04 pm

On burnt latke it says that a propane tank will sit at around 90, when i open me regulator all the way my presure guage goes to around 120 psi or more, i want to use my gun for a science fair project, test the fuel to air mixture...i know its alread been tested to work best at 4.03% but i still want to do it. just wondering if my guage could be right or if this project will requier something special
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Unread postAuthor: noname » Sat Mar 24, 2007 10:20 pm

Your guage is fine. Propane liquifies at about 125 psi at room temperature, so if your tank is full, the guage should go to 120 or a little higher.
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Unread postAuthor: jjjd » Sat Mar 24, 2007 10:35 pm

ok so it reads correctly, thanks
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