Patent ID: 10551267

Abstract:
Provided is a pressure detection device which includes: a pressure detection unit configured to detect a pressure transmitted to a diaphragm of the pressure detection unit; a flow passage unit in which a flow passage and a diaphragm of the flow passage unit are formed, a fluid being made to flow through the flow passage along a flow direction from an inflow port to an outflow port, and the diaphragm of the flow passafe unit being configured to transmit a pressure of the fluid flowing through the flow passage to the diaphragm of the flow detection unit; and a nut configured to allow the flow passage unit to be detachably mounted on the pressure detection unit. The pressure detection unit includes a mounting detection sensor configured to detect that the flow passage unit is mounted on the pressure detection unit in a state where the diaphragm of the pressure detection unit and the diaphragm of the flow passage unit are in contact with each other.