To operate a starting valve by pressing operation and to start water discharge after releasing the pressing operation.

This operating valve is furnished with a starting valve 18 to operate to open and close a main valve 17 and a timer 13 to operate to open and close the starting valve 18, the timer 13 has an output part 29 to advance and retreat to and from its main body part 28, stores operating energy by retreating the output part 29 by external operating force and operates to press the starting valve 18 in the valve closing direction by gradually projecting the output part 29 by releasing the operating energy. The main body part 28 of the timer 13 is arranged free to longitudinally move, a pressing part 26 to receive the external operating force as pressing force is provided, and a returning tool 27 to open the starting valve 18 by retreating the timer 13 when pressing by the external operating force is eliminated is provided.