RMG 901 Filter
On the dual-diaphragm device, a distinction can be rendered between the engineered setpoint (spring pressure) and the actual value (load restricting pressure). The gas flow through the load-restricting stage causes a loss of energy at the throttle and therefore a decrease in pressure through the actuator diaphragm of the gas pressure regulator. The pdmin stage then executes the monitoring role and maintains the outlet pressure steady. The pdmax level and the electro-pneumatic pressure stage of the pilot are circumvented.