Throwbag Cannon

[Aaroneous]

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.

[farcticox1]

Is that ABS ? what psi do you run in it ?

[Anatine Duo]

always nice to see practical applications

[Aaroneous]

Is that ABS ? what psi do you run in it ?

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.

[farcticox1]

[/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.

[Moonbogg]

PVC vs ABS crush test


PVC air pressure failure


ABS air pressure failure


ABS wins.

[farcticox1]

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.

[Anatine Duo]

More important for me is the failure mode. PVC makes sharp shrapnel, most ABS yawns or makes squared off pieces.