Mounting structure for control valve

A mounting structure for a control valve that is interposed in a refrigerant passage, thorough which refrigerant flows, in a refrigeration cycle for an automotive air conditioning system, for controlling a flow rate of refrigerant, wherein:

• a mounting hole that has a stepped portion inside thereof which is opposed to a yoke surrounding a coil of a solenoid of the control valve in a direction of insertion of the control valve, and has a first thread portion in an inner portion toward an open end thereof, is provided at a location where the control valve is to be mounted;
• the control valve is provided with a flange portion radially outwardly extended such that said flange portion is opposed to said stepped portion when the control valve is inserted into the mounting hole, a gasket disposed on a surface of said flange portion, opposed to said stepped portion, and said yoke disposed outside a fixed core and a movable core of said solenoid such that said yoke can be pivotally moved about an axis of said fixed core and said movable core, with one end thereof in the direction of insertion of the control valve being capable of being brought into contact with a surface of said flange portion opposite to the surface having said gasket disposed thereon, and the other end thereof having a second thread portion for mating with said first thread portion;
• and
• the control valve is inserted into said mounting hole, and said yoke is screwed in, whereby said one end of said yoke presses said gasket against said stepped portion via said flange portion, thereby simultaneously achieving sealing of said stepped portion and mounting of the control valve.