In steam boiler applications, pressure relief valves (PRVs) are the silent sentinels — the last line of defense against potentially disastrous overpressure situations. In a perfect world, boiler ...

High-pressure steam boilers were blowing up all across the land and a big reason for that had to do with the relief valves of the time. In 1905, a boiler in a Boston shoe factory blew up, traveled a ...