It does, but those will vent to the atmosphere, if there is enough overpressure and it lasts for long enough the amount of gas released would be considerable.
It seems one solution might be to have a small constantly-burning flame (the other posts here that say small gas leaks are basically being ignored suggest that it wouldn't really cost much more) at the relief valve exits, so that if they vent, the excess gas just gets burnt. Obviously the relief valve exits should be located away from flammables, and preferably visible so that extended overpressure events are immediately noticeable from the flames coming out:
The goal is to not silently create an explosive mixture, but to burn vented gas to make it harmless and create a visible indicator of extended venting.
> It seems one solution might be to have a small constantly-burning flame (the other posts here that say small gas leaks are basically being ignored suggest that it wouldn't really cost much more) at the relief valve exits, so that if they vent, the excess gas just gets burnt.
When the amounts are larger that is exactly how it is done. But for trace amounts the mixture would not reach a concentration level where it is combustible and then you need a whole setup around that to batch it to the point where it is.
Hard to do that passively, also, you could no longer do that indoors.
It seems one solution might be to have a small constantly-burning flame (the other posts here that say small gas leaks are basically being ignored suggest that it wouldn't really cost much more) at the relief valve exits, so that if they vent, the excess gas just gets burnt. Obviously the relief valve exits should be located away from flammables, and preferably visible so that extended overpressure events are immediately noticeable from the flames coming out:
https://en.wikipedia.org/wiki/Gas_flare
The goal is to not silently create an explosive mixture, but to burn vented gas to make it harmless and create a visible indicator of extended venting.