| 摘要 |
Provided is a union for a solar collector capable of absorbing thermal expansion of a distribution header caused by a change in an operation temperature when the solar collector is operated. The union of a solar collector connecting distribution headers which are placed in two solar collectors, respectively comprises a cylindrical union main body which has insertion parts on both end parts thereof so that an end part of the distribution header is inserted into the insertion part; flanges which extend from a circumferential surface of the insertion part of the union main body and a circumferential surface of an end part of the distribution header, respectively; a finger spring which is inserted into the insertion part of the union main body and provides tension force, which is caused by thermal expansion of the distribution header, when placed between the flange of the union main body and the flange of the distribution header; and a metal clip which mutually connects and fixes the union main body with the distribution header. |
