GASKET AND REFRIGERATION CYCLE DEVICE

Provided are a gasket and a refrigeration cycle device that uses said gasket, with which seal distance can be ensured and the gasket can easily be positioned while the area of the gasket is reduced and sealing is improved. This gasket is configured from a plate disposed in a connecting part that connects a passage through which a fluid flows, and provided with a hole through which passes the passage through which the fluid flows, wherein the gasket comprises a positioning part that is disposed in the periphery of the hole and that positions by means of a bolt, and a punching part that is provided between the hole and the positioning part and that penetrates through the plate, the positioning part having an arcuate shape that runs along a portion of the outer periphery of the bolt. 本发明提供一种能够减小垫片的面积使密封性提高，并且确保密封距离，还能够容易地进行垫片的定位的，垫片以及使用了该垫片的制冷循环装置。垫片配置于连接供流体流通的路径的连接部，由设置有使供流体流通的路径通过的孔的板构成，在该垫片中，具备：定位部，其配置于孔的周围，通过螺栓进行定位；和冲裁部，其设置于孔与定位部之间，并贯通板，定位部为沿着螺栓的外周的一部分的圆弧形状。