NOVELTY - The valve (10) has a fluid introduction passage for introducing a fluid into the valve. A fluid discharge flow path discharges the fluid from the valve. A valve chest (14) is provided with a valve seat (16) provided with a valve port (20). A drive part (40) separates/connects a valve body with respect to the valve seat. The valve body opens and closes the valve port of the valve seat by the drive part such that a number of the fluid introduction passages is larger than number of the fluid discharge flow paths and the fluid introduction passages are closed at time of a valve closure.    USE - Controlling valve i.e. solenoid valve, for a gas-liquid separation apparatus for performing gas-liquid separation of fuel off-gas e.g. excessive hydrogen gas and nitrogen gas in a fuel cell system (claimed) utilized in a vehicle e.g. motor vehicle and fuel cell electric vehicle. Can also be used as a motor operated valve for a cooling-heat circuit such as air-conditioner, water heater and plant machine.    ADVANTAGE - The valve body opens and closes the valve port of the valve seat by the drive part such that the number of the fluid introduction passages can be made larger than the number of the fluid discharge flow paths and the fluid introduction passages can be closed at time of the valve closure, so that the fluid can be controllable through the fluid introduction passage even if the fluid is frozen in the fluid introduction passage at time of low temperature when a remaining fluid is not frozen and gas of a primary side and the fluid of liquid can be controllable, thus avoiding need to use another valve for a fuel cell system, simplifying structure of the fuel cell system and reducing manufacturing cost of the valve.    DETAILED DESCRIPTION - The fluid is liquid water, cooling water and fossil fuel such as petrol. The fluid introduction passages are fluid flow paths (18, 22). The fluid discharge flow path is another fluid flow path (25).    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of a controlling valve in a state in which pressure of a controlling valve is balanced at time of valve closure.'(Drawing includes non-English language text)'    Controlling valve (10)    Valve chest (14)    Valve seat (16)    Fluid flow paths (18, 22, 25)    Valve port (20)    Drive part (40)