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          Live is the use of steel ring flange flanging, the flange sleeve at the end of the pipe, the pipe end flange can be active on. The steel ring or the flange sealing surface of flange is, the function is to compress them. This is because the steel ring or flange block, looper flange does not contact with the media. Because the flange can be active, not directly connected to the pipeline, so called the living flange, there is another argument called loose flange.

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