What's the use of blind flange?

　　Blind flanges plays the role of isolation and cutting off, as well as sealing head, pipe cap and welding plug. Because of its good sealing performance, Blind flanges is generally used as a reliable means of isolation for systems requiring complete isolation. Blind flanges is a solid circle with handle, which is used in isolation system under normal conditions. The shape of 8-character Blind flanges is like 8-character, one end is Blind flanges, the other end is throttle ring, but the diameter is the same as the pipe diameter, and does not play a throttling role. 8-word Blind flanges, easy to use, need to isolate, use blind end, need normal operation, use throttle ring end, but also can be used to fill the installation gap of blind plate in pipeline. Blind flanges Another feature is that the logo is clear and easy to identify the installation status.

　　Blind plate flange is not galvanized when used in oil medium system, hot galvanized when used in other medium system, minimum galvanized layer weight 610 g/m2, hot galvanized quality inspection according to CB*/Z343.

　　ANSI Class 150 Stainless Steel Forged Blind Flange should be located in the required isolation (cut off) part, such as the equipment nozzle, before and after the cut-off valve or between two flanges. Usually, 8-character blind board is recommended, and plugs (circular blind board) can also be used for pressing, purging and other disposable parts.