Throwbag Cannon
Posted: Thu Mar 24, 2022 12:11 pm
Built this for my volunteer FD. We're going to be using it to launch a throwline over a roof and pull over an anchor rope when dealing with flue fires next season.
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Re: Throwbag Cannon
Posted: Fri Mar 25, 2022 7:33 pm
Is that ABS ? what psi do you run in it ?
Re: Throwbag Cannon
Posted: Sat Mar 26, 2022 7:50 am
always nice to see practical applications
Re: Throwbag Cannon
Posted: Tue Mar 29, 2022 6:21 am
Yes. Still working it out, but 100 was WAY too much... Would have cleared a six story building with room to spare.
... Home depot was out of pvc.
Re: Throwbag Cannon
Posted: Tue Mar 29, 2022 3:40 pm
[/quote]
Yes. Still working it out, but 100 was WAY too much... Would have cleared a six story building with room to spare.
... Home depot was out of pvc.
[/quote]
Good job, PVC is not rated for gas pressure.
Yes. Still working it out, but 100 was WAY too much... Would have cleared a six story building with room to spare.
... Home depot was out of pvc.
[/quote]
Good job, PVC is not rated for gas pressure.
Re: Throwbag Cannon
Posted: Tue Mar 29, 2022 9:11 pm
PVC vs ABS crush test
PVC air pressure failure
ABS air pressure failure
ABS wins.
PVC air pressure failure
ABS air pressure failure
ABS wins.
Re: Throwbag Cannon
Posted: Wed Mar 30, 2022 6:29 pm
Interesting that DWV which has no actual pressure rating is better at using for pressure applications than PVC which actually has a pressure rating but is not actually rated for gas pressure. 
Re: Throwbag Cannon
Posted: Sat Apr 02, 2022 7:46 pm
More important for me is the failure mode. PVC makes sharp shrapnel, most ABS yawns or makes squared off pieces.