What Are IBR Approved Blind Flanges? An IBR Approved Blind Flange is a solid, bolted flange without a central bore. It is installed at the end of a pipeline or equipment connection to safely block the flow of steam, water, gas, or other process media. Blind flanges are particularly useful where a piping section may need to be isolated, inspected, maintained, or extended in the future. For applications falling under IBR, the flange, material, manufacturing, inspection, certification, and approval requirements should be verified according to the applicable project and regulatory requirements.

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