| 摘要 |
<p>A valve control system (50) includes general-purpose valves (11 and 12) arranged in a pipe (1) for flowing a fluid, first and second sensors (13 and 14), and a safety controller (20). The general-purpose valves (11 and 12) are valves that can be opened and closed according to the electric signals, and are, e.g., solenoid valves, respectively. The first and second sensors (13 and 14) are sensors that detect a state of flowing of the fluid from the corresponding valves, and are formed of, e.g., pressure switches, respective The safety controller (20) is configured to satisfy the safety standards, and outputs signals (out1 and out2) for controlling the valves (11 and 12) based on signals (in1 and in2) provided from the first and second sensors (13 and 14), respectively.
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