本欧洲标准适用于符合EN ISO 228-1标准的外螺纹管G¾的可拆卸连接。这些用于以下液压连接点的加热和冷却排放系统领域:散热器或电路分配器之间的连接以及相应的管道。对于带集成阀组的散热器，另一个连接点是与连接配件或螺丝连接本身的螺钉连接。 本欧洲标准规定了单连接和双连接的尺寸

This European Standard applies to detachable connections with outside threaded pipe G ¾ A in accordance with EN ISO 228-1. These are used in the field of heating and cooling emission systems at the following hydraulic connection points: connection between radiators or circuit distributors and the respective pipe. Another connection point, for radiators with integrated valve sets, is the screw connection to the connection fitting or to the screw connection itself. This European Standard specifies the dimensions for the single and the double connection.