Expansion valve

An expansion valve comprising:

• a valve body including an inlet hole through which a refrigerant flows into a valve chamber, and a valve hole through which the refrigerant flows out from the valve chamber;
• a valve element configured to adjust an amount of the refrigerant flowing through the valve hole;
• a support member configured to support the valve element;
• a coil spring configured to press the valve element in a valve-closing direction via the support member;
• a power element that is mounted to the valve body and configured to drive the valve element via a valve rod;
• a first vibration isolation spring that is provided in the valve chamber and configured to prevent vibration of the valve element;
• and
• a second vibration isolation spring that is in contact with the valve rod and configured to prevent vibration of the valve element,
• wherein the first vibration isolation spring includes an annular base portion disposed between the support member and the coil spring, and a plurality of leg portions that extend radially from the annular base portion, and
• each of the plurality of leg portions includes an upper portion radially formed in a same plane as the annular base portion, a bent portion that bends from the upper portion toward the coil spring, and a side portion extending downward from the bent portion.