N2O pressure in a 10lb bottle?

[11 6.2]

Well tonight is gonna be my first night hitting the 100 shot and the bottle I got i was told it was full, it has around 800 psi i thought full waas 1100...
If not about how many passes should I get out of a 10lb bottle with 800 psi on a 100 shot?
Thanx guys!

[TXsilverado]

A full bottle can get well below 800 psi. Psi is relative to how hot or cold the bottle is. Heat the bottle and the psi will rise. Try and keep it between 950 and 1050 when you flip the switch

[sprayedenali]

never judge how full a bottle is by the pressure, always weigh it. but like Stew said around 950 is about where you want it to be when you spray it, which is where the bottle heater comes into play

[TXsilverado]

yep. my heater can get an empty bottle up to 800.

[11 6.2]

ohh ok I see. Thanx guys. Now how much should a full 10lb bottle weigh?

[George C]

depends on how well packed it is. Ive had bottles weigh in at 27 lbs. thats 12lbs of n20 in a 10lb bottle

[mean05]

empty a 10lb bottle weighs 14lbs or 14.5lbs so add 10lbs to that and 28lbs is full. Rough estimate on usage for nitrous is 1lb per 10 sec of use on a 100 shot

[11 6.2]

Thank yall very much!

[TXsilverado]

i usually try and squeeze 12 lbs into my 10lb bottle. freezing the bottle usually helps get it there.

[mean05]

i usually try and squeeze 12 lbs into my 10lb bottle. freezing the bottle usually helps get it there.

downfall to this is that first hit is hard to maintain the constant pressure....you will have it at 1200psi cool and by the end of the run its at 900 and cold...now you have to spend 10-15 min heating the bottle back up...if you just start out at 10lbs then your pressure drop wont be as severe and youll have a better pass and no lean to fat problem through the run