在新、旧管子连接处安装绝缘法兰，破坏了长管道的原电池，即：阳极(新管子)和阴极(旧管子)间电断路。
By insulating flange at the junction between the new and old pipe, the long line galvanic cell is "broken up" - the anode (new pipe) is electrically separated from the cathode (old pipe).
其中石棉橡胶板结构致密，耐压性能好，耐温性能也很好，在阀门本身和阀门与管子的法兰连接中，使用极为广泛。
Asbestos rubber sheet in which the structure of dense, good pressure, good heat resistance, and valves in the valve itself and the pipe flange connection, the use of a wide range.
根据提出的数据及相关的信息，进行管子的设计布置，零部件型号和管子穿越构件的补板、管子之间的连接法兰等的确定。
According to the data and corresponding information, we can design the arrangement of the pipe, and determine the model of the components, flange and complementary plate in the piping system.
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