A valve (100) for controlling pressure in a ventilation system. The valve includes an electromagnet (105, 106), a shaft (107) connected to the electromagnet, and a diaphragm (110) connected to the shaft, wherein the electromagnet applies force to the diaphragm based on an input. The ventilation system includes a ventilator (200) connected to a patient circuit (204), the valve (100) controlling pressure in the ventilation system, and a controller (206) connected to the valve and configured to provide the input to the valve.
