The pressure regulation or pressure relief device includes an inlet and an outlet chamber having an outlet. The inlet is in fluid communication with the outlet chamber. The valve seat is located between the inlet and the outlet. The valve member is energized to seal the valve seat, and is displaced from the valve seat by the inlet pressure of the inlet that increases beyond the pressure threshold, passing the gas stream from the inlet through the outlet chamber to the outlet. The gas flow through the outlet causes the outlet pressure of the outlet chamber, along with the inlet pressure, to act on the valve member and displace the valve member from the valve seat.圧力調整又は圧力開放デバイスは、入口と、出口を有する出口チャンバとを含む。入口は出口チャンバと流体連通する。弁座は、入口と出口との間に位置する。弁部材は、付勢されて弁座を密閉し、圧力閾値を超えて増加する入口の入口圧によって弁座から変位し、ガス流を入口から出口チャンバを通って出口に通す。出口を通るガス流は、入口圧とともに、出口チャンバの出口圧を弁部材に作用させ、弁部材を弁座から変位する。
