| 摘要 |
<p>The present invention relates to a valve for automatically controlling hot water, comprising a housing inserted into a hot water pipe; an opening and closing device installed inside the housing; a memory spring which is arranged on one side of the opening and closing device, which closes the opening and closing device by providing elasticity for the opening and closing device when hot water having a predetermined temperature or higher temperatures passes by, and which is made of a shape-memory alloy; and a tension spring to restore the opening and closing device to its original position when water at a temperature lower than the predetermined temperature passes by.</p> |
