PRESSURE REGULATION VALVE

There is provided a pressure regulating valve which can be opened at a desired pressure with high accuracy and can be manufactured with a small number of man-hours. [0002] A pressure regulating valve 100 for a power storage module includes a housing 10 having a housing main body 11 with an opening and with a recess 13 formed in the inside and a cover body 12 that closes the opening of the housing main body 11 and a columnar valve element 20 that is an elastic member housed in the recess 13 of the housing main body 11 of the housing 10, wherein the housing main body 11 has a pressure introduction passage 19 formed of a through-hole into which pressure from a power storage module is introduced at a bottom of the recess 13, and the pressure introduction passage 19 has a pressure introducing part 31 which is a columnar space passing through the housing main body 11, and a groove 33 which is connected to the pressure introducing part 31 and opens to a surface of the bottom 17, the valve element 20 has a shorter axial length than the outer diameter and is arranged so as to cover an aperture on the bottom 17 side in the pressure introduction passage 19, the cover body 12 has a protrusion 14 in contact with an end face of the valve element 20, and the opening 15 of the housing main body 11 is closed with the cover body 12, whereby the protrusion 14 of the cover body 12 pressurizes the valve element 20, and the valve element 20 airtightly closes the pressure introduction passage 19.