I've never seen a Lindal valve fail, but then again, I'm not out in -30C weather either. So, as Phat says, it depends.

I also assumed you meant butane canisters not fuel bottles. I'd never leave a stove and bottle together. I will leave the pump in the bottle since that actually protects the pump, but I would carry it outside the main pack in a pocket or separately in my sled.

The old puncture canisters are another story. I didn't even think of those, since you so rarely see them any more.

Thanks Phat for the elaboration.