Chad .......I assume that your working towards this ...
7.6. All pneumatic components within the robot must be rated or certified for AT LEAST the maximum pressure in that part of the system. You may be required to show rating or certification documentation on ANY component in your system.

Id like to point out that the burst disc pressure rating on paintball bottles is fairly high ........1,800 psi plus as a norm.
So .....the ratings of your valves and fittings should be at least that of your burst / rupture disc.
The addition of a 1000 psi pressure relief valve makes things simpler.

BTW... Whats the rating of your vent / dump valve?