Patent ID: 8550104

Claim:
A pressure control system for controlling pressure in a tank having a plate, the pressure control system comprising: a pressure relief valve; a first bolt extending through the pressure relief valve and into the plate to couple the pressure relief valve to the plate; a rupture disc subassembly disposed between the pressure relief valve and the plate, the rupture disc subassembly including two securing plates and a rupture disc disposed between the securing plates; and a second bolt, independent of the first bolt, extending through the two securing plates and into the plate to removably couple the rupture disc subassembly to the plate, the rupture disc subassembly being removable from the plate from an exterior side of the tank without removing the plate from the tank, wherein the pressure relief valve is coupled to the plate such that the pressure relief valve is removable without requiring removal of the coupling of the rupture disc subassembly.