Low temperature leak detection ware

The utility model discloses a low temperature leak detection ware, which comprises the following components: a valve body, install spherical case in the valve body, and spherical case is connected with the valve rod, the top of valve rod extends to the outside position of valve gap, it has sealing filler to fill between valve rod and the valve gap, the hand wheel is still installed at the top of valve rod, fixed cover has the temperature sensing copper sheet on the outer wall of valve gap, the laminating has to mix on the outer wall of temperature sensing copper sheet has heat discoloration material's series thermal silica piece, the series thermal silica piece outside is sealed to have the monitoring to cover, monitoring cover right side inner wall is fixed with white light lamp, the white light lamp downside is equipped with photosensitive sensor, photosensitive sensor's effect is used for the change of the interior light of monitoring cover, in time send to the external world through the signal generating