I'm not able to find solid numbers on that, but given the shared heritage (I presume those gas thrusters come straight from SpaceX) and premium in a space vehicle for payload space, and the fact that SpaceX lost four vehicles to the things, I suspect similarly quite high.
My assumption was that pressures would be lower to help with the longevity of the air chamber, versus a more “disposable” nature of rocket equipment. I am assuming they are replaced between launches.