Pressure Relief Valves (pictures)

[buswarrior]

Just check out how small the hole is in many pressure relief valves.

A hole the size of an old fashion primary pencil is sufficient to defeat your bus air compressor.

The only thing that might rupture is the weakest of your hoses or connections, and you wanted to know about them anyway...

And, that's only if your compressor hasn't already reached the point it can't pump any higher, and can't even get to 150 lbs.

When checking the mounting of your pressure relief valve, be sure it isn't oriented in a way that a frozen slug of water or accumulated crap can't plug it in a way that prevents intended operation.

happy coaching!
buswarrior