The flange blind board has the isolation, the cutting function, and the seal head, the tube cap plays the role is the same.?
Because of its good sealing performance, for the need for complete isolation of the system, generally as a reliable means of isolation. A blind is a solid circle with a handle for a system that is normally isolated. The figure 8 blind, shaped like figure 8, one end is a blind, the other end is a choke ring, but the diameter of the same pipe diameter, does not play a choke role. 8-type blind board, easy to use, when need isolation, use blind board end, need normal operation, use throttle ring end, but also can be used to fill the blind board on the pipeline installation gap. Another feature is the clear identification, easy to identify the installation state.
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