Shut-off valve control device, shut-off valve control system, shut-off valve control coefficient calculation method, and shut-off valve control method

摘要

Provided are a shutoff valve control device, a shutoff valve control system, a shutoff valve control coefficient calculation method, and a shutoff valve control method that can reduce a difference between a set opening and an actual opening when a partial valve stroke test is performed. . A microcomputer that controls opening and closing of a solenoid valve (5) that supplies and exhausts air from an air supply source (11) to a cylinder (31) of an air cylinder (3) that controls a valve shaft (1b) of a shutoff valve (1). A shutoff valve control device including (7), wherein the microcomputer (7) acquires a set opening of the shutoff valve (1). Then, the microcomputer (7) controls the solenoid valve (5) to a value obtained by dividing the obtained set opening by a predetermined coefficient C.