Expert Opinion Needed
Is there a standard in the industry for welders to protect their gas cylinder tanks while welding? Perhaps with an FR blanket? I had an associate mention it, but I wasn't sure if others in the same field were doing this.
Comments (5)
It depends on what cylinder(s) you're using, but if you're referring to flammable gas cylinders (e.g., acetylene, propane, etc.), then as far as I know, it doesn't mention anything specifically about protecting them while "in use" - just when they're stored. Even though the statement below (from ANSI, but OSHA is similary worded) refers to "storing" of welding cylinders, the same principles are generally applied to cylinders in use if the welding operation presents a hazard (e.g., risk of explosion, fire, etc.). Sometimes, the welding spatter, sparks, etc. won't travel far enough to reach the cylinders and won't cause any hazard, so you wouldn't need to do anything as far as protecting the cylinders. However, if you think it COULD reach the cylinders, I'd definitely protect the cylinders using a fire blanket, welding curtain, etc. in case the regulator/cylinder is leaking.
ANSI Z49.1-2021, Ch. 10.8.2.1
"Cylinders shall be stored where they will not be exposed to physical damage, tampering, or subject to temperatures which would raise the contents above the limits of 10.8.1.8."
We have ours separated from the welding activity by a welding curtain. The tanks are also seperated on the welding cart by a wide strip of metal to protect the other cylinder should one ignite. Can't tell you a standard though, just what we practice.
I’m pretty confident the nfpa 51b specifically states that they should be protected from radiant heat sparks , slag, and flames. And that the distance should be sufficient to prevent them from being heated due to the work. Otherwise you should use a barrier, blanket or shield.