Flow rate control valve and fuel vapor processing apparatus including the same

A flow rate control valve comprising:

• a valve casing forming a fluid passage;
• a valve seat provided in the fluid passage of the valve casing;
• an electric motor mounted on the valve casing and drive-controlled by a controller;
• a valve guide stroke-controlled in an axial direction by the electric motor via a feed screw mechanism;
• a valve body configured to be placed and separated on and from the valve seat;
• a connector connecting the valve guide and the valve body so as to allow them to move in the axial direction within a predetermined range;
• a biasing means configured to bias the valve body in a closing direction;
• and
• a contact portion provided on the valve casing and configured to limit the movement in the closing direction of the valve guide through contacting the valve guide,
• wherein when closing the valve body, the controller controls the electric motor to attain a closed state such that a connection between the valve guide and the valve body by the connector is released, with the valve body being seated on the valve seat, and the valve guide being situated at a non-contact position spaced away from the contact portion of the valve casing.