Control valve

A control valve comprising:

• a flow passage forming portion that is shaped in a tubular form and has a flow passage at an inside of the flow passage forming portion while the flow passage is configured to conduct fluid in an axial direction of a central axis of the flow passage forming portion, wherein an opening of the flow passage opens in the axial direction at the flow passage forming portion;
• a valve element that is placed relative to the flow passage forming portion in the axial direction, wherein the valve element is configured to open and close the opening of the flow passage forming portion through rotation of the valve element;
• a seal that is metal and directly contacts the valve element, wherein a gap is present between the seal and the flow passage forming portion in a crossing direction, which crosses the axial direction, to enable displacement of the seal in the crossing direction in a state where the seal contacts the valve element;
• and
• a support that is metal and is integrated with the seal in one-piece, wherein the support is supported by the flow passage forming portion in the axial direction and is configured to exert a resilient force to urge the seal against the valve element, wherein:
• the seal includes a tubular portion and a flange while the flange extends outward in a radial direction about an axis of the tubular portion from an end part of the tubular portion which is adjacent to the valve element;
• the support includes a projection that projects from the flange towards the flow passage forming portion;
• and
• the gap is present between the tubular portion and the flow passage forming portion in the crossing direction.