Expansion valve

An expansion valve for sensing temperature change of a refrigerant at an outlet of an evaporator to control a flow rate of the refrigerant supplied to an inlet of the evaporator comprising:

• an expansion valve unit including a temperature-sensitive chamber whose internal pressure rises or drops in response to temperature change of the refrigerant in a low-pressure refrigerant pipe connected to the outlet of the evaporator, and a valve mechanism actuated in response to pressure rise or drop of the temperature-sensitive chamber to control the flow rate of the refrigerant supplied to the inlet of the evaporator;
• a valve casing having an opening into which said expansion valve unit is fitted, said valve casing being formed integrally with a high-pressure refrigerant pipe for introducing the high-pressure refrigerant, a low-pressure refrigerant pipe for letting out the refrigerant whose flow rate has been controlled, and the evaporator;
• and
• an elastic clip having arms for clamping said valve casing from a direction perpendicular to an axis of said valve casing, the arms having openings into which a flange integrally formed at the opening of said valve casing and a peripheral edge of the temperature-sensitive chamber of said expansion valve unit are fitted such that said expansion valve unit is prevented from being detached from said valve casing.