Adjustable membrane pressure switch

grabcad

An uninterrupted or shutoff pressure switch, activated by rubber membrane seal deformation due to pressure alterations, is designed. With tooling core inserts, numerous inlet locations can be produced from a single tool. The internal air path's layout allows for the same inner core block usage. The pressure switch adjustment occurs via a side screw; loosening or tightening it alters the sensor plate's position inside. The sensor plate's shape results in varying separation distance with the activation pin. In the always-on mode, a set negative pressure is sensed when the activation pin remains in contact with the sensor plate until sufficient negative pressure separates them. Conversely, the always-off mode detects positive pressure as the activation pin doesn't connect to the sensor plate until pressurization forces it onto the sensor.