Quote:
Originally Posted by Baywinger
flashback arrestors are attached at the regulator in case of a hose fire, if they are at the torch and your hose catches fire your tank can still explode.
use an flashback arrestors for both propane and oxy when using tanks.
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Flashbacks usually occur from a drop in fuel pressure and start at the torch, not from a fire melting your hoses. This is more of an issue for standard welding or premix torches. If you have your flashback arrestors at the regulator you could loose a lot of hose. Here is a link form Victor welding torches. The suggestion is to use flashbacks at the torch.
http://victortechnologies.com/IM_Upl...roducts%20.pdf