| 摘要 |
The present invention relates to a temperature control valve, and the purpose of the present invention is to provide a temperature control valve having an automatic cut-off function which can prevent harm caused by continuous supply of high temperature conveying fluid by maintaining a cut-off state of a valve even if working pressure of an actuator for opening and closing a valve is lost especially by damage to a temperature sensor that controls the working pressure of the actuator for opening and closing a valve or direct damage to a temperature sensing part. In order to achieve this purpose, the temperature control valve consists of a temperature sensor (1) which measures a temperature of a heating object; a temperature sensing part (2) which controls working pressure of a working medium in accordance with a temperature sensed by the temperature sensor (1); and a main valve unit (3) which is mounted on a pipe for supplying conveying fluid (S) toward the heating object, and controls a flow rate of the conveying fluid (S) in accordance with working pressure of the temperature sensing part (2). In addition, the temperature control valve comprises a safety valve unit (100) which is installed on a pilot passage (30) of the main valve unit (3), and maintains a closed state by blocking the pilot passage (30) of the main valve unit (3) when losing working pressure of the main valve unit (3) through the temperature sensing part (2) irrespective of the temperature of the heating object. |
