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Blind flange is a special type of flange used to temporarily block pipelines. It mainly consists of the following components:
1. Blind plate: a solid metal disc used to completely block the pipeline. Blind plates are usually made of carbon steel or stainless steel.
2. Flange: The plate is mounted on the flange by welding or mechanical connection. The flange can be a weld flange or a socket flange.
3. Bolts and nuts: used to securely fix the blind plate to the flange to ensure sealing.

Blind flanges are mainly used in the following situations: temporarily isolating pipe sections during pipeline repair or modification, blocking pipeline ends during pipeline pressure testing, and sealing pipeline ends during pipeline shutdown or maintenance.

Blind flange has the advantages of easy installation, good sealing, and wide application range. It is a common and important accessory in pipeline systems. When using, appropriate materials and specifications must be selected based on the medium, temperature, pressure and other factors of the pipeline.

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