Maximum PSI of a hairspray explosion
I recently bought a 2ft length of schedule 40 PVC pipe. It is rated at 180 PSI. Is there any possibility at all of this failing as a result of a hairspray-propelled launch? This would be assuming that other components, I.e. Joints and such, would not fail. Thank you!
-
Hurricane Arms
- Private
- Posts: 4
- Joined: Wed Oct 21, 2015 10:15 pm
PVC is generally okay for very brief explosions. Anecdotal evidince suggests that you should be safe. But again it comes down to how much propellant and the level of sturdiness. Good luck and be careful. Make sure you use pressure-rated white PVC and wrap the areas of stress in non-stretch tape.
Hurricane Small Air Arms, simply Hurricane, formerly Night Stalker Air Arms was founded in 2011.
Hurricane specialises in contra-ordinary PCP's ranging from Light, Medium and Heavy Machine guns, semi-automatic air rifles, air machine pistols and air sniper rifles.
Hurricane specialises in contra-ordinary PCP's ranging from Light, Medium and Heavy Machine guns, semi-automatic air rifles, air machine pistols and air sniper rifles.
-
Hurricane Air Arms
- Private 4
- Posts: 68
- Joined: Thu Mar 31, 2016 11:00 pm
- Has thanked: 1 time
PVC becomes brittle over time. Be very careful. But on the reverse end people have used PVC extensively.
personally I wouldn't take PVC above 120/140. Is the risk worth the reward?
personally I wouldn't take PVC above 120/140. Is the risk worth the reward?
The Lord said "Whom shall I send, and who will go for us?"
And I said
"Here am I...
...Send me"
And I said
"Here am I...
...Send me"
-
Gippeto
- First Sergeant 3
- Posts: 2503
- Joined: Sat Jan 19, 2008 10:14 am
- Location: Soon to be socialist shit hole.
- Has thanked: 2 times
- Been thanked: 17 times
SWISH....out comes the spoon for feeding time....second paragraph. 
http://www.spudfiles.com/spud_wiki/inde ... ion_cannon
http://www.spudfiles.com/spud_wiki/inde ... ion_cannon
"It could be that the purpose of your life is to serve as a warning to others" – unknown
Liberalism is a mental disorder, reality is it's cure.
Liberalism is a mental disorder, reality is it's cure.
-
jimmy101
- Sergeant Major
- Posts: 3199
- Joined: Wed Mar 28, 2007 9:48 am
- Location: Greenwood, Indiana
- Has thanked: 5 times
- Been thanked: 17 times
- Contact:
What Gippeto said.
And, when considering safety you have to do a worse case scenario. In general, hairspray sucks as fuel since it can't be accurately measured. But, for a safety analysis you have to assume that you hit the absolutely perfect fuel amount (which you'll rarely actually will). Still, hair spray is propane or butane and the theoretical combustion pressure is only about 140 PSIG, and that only occurs when the fuel ratio is exactly correct and you have a closed chamber (or your ammo is jammed in the barrel and can't move).
And, when considering safety you have to do a worse case scenario. In general, hairspray sucks as fuel since it can't be accurately measured. But, for a safety analysis you have to assume that you hit the absolutely perfect fuel amount (which you'll rarely actually will). Still, hair spray is propane or butane and the theoretical combustion pressure is only about 140 PSIG, and that only occurs when the fuel ratio is exactly correct and you have a closed chamber (or your ammo is jammed in the barrel and can't move).
-
jackssmirkingrevenge
- Five Star General
- Posts: 26203
- Joined: Thu Mar 15, 2007 11:28 pm
- Has thanked: 569 times
- Been thanked: 343 times
Your signature is how I one day hope to reproduce.
hectmarr wrote:You have to make many weapons, because this field is long and short life