| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure governor device for achieving stable behavior when starting the pressure governor device even though a start and an operation stop are easily performed.SOLUTION: A motor-operated valve 30 is provided in a pilot passage 5 such that the motor-operated valve 30 can be subjected to an opening/closing operation to vary communication opening between an auxiliary ball 14 and a downstream side pipe 2. When the motor-operated valve 30 is closed to block the pilot passage 5, a main governor 11 stops operation in a closed state, and when the motor-operated valve 30 is opened, the pilot passage 5 is made to communicate to operate the main governor 11. When a start operation signal for starting the main governor 11 is outputted by remote control, control means restricts the speed of the motor-operated valve 30 to cause low-speed operation, thereby gradually increasing the communication opening of the pilot passage 5 by taking predetermined time within the range of cushioning opening smaller than communication opening during operation. When the predetermined time passes, the motor-operated valve 30 is opened completely to make the communication opening of the pilot passage 5 the communication opening during operation. |
