What is a Blank flange?

A blank flange is a flange used to seal the open end of a pipe or mechanical connection. It is typically used at the end of pipelines or for temporary purposes to close off a section of the system. The shape is generally a flat disc, which is bolted to the corresponding pipe or equipment. Blank flanges are important for preventing leaks of liquids or gases and are commonly used in maintenance or testing procedures to isolate parts of a piping system. They provide a secure, tight seal to ensure that no substances escape.

Application of Blank flange

✅ Pipeline Testing
Blank flanges are used to temporarily seal the end of pipes during leak testing in a piping system. This allows for pressure tests to be performed without leakage.
✅ Isolation During Maintenance
During maintenance work, blank flanges are used to isolate sections of a piping system, improving safety by preventing unintended flow or pressure.
✅ Closing Gas Supply Lines
Blank flanges are used to completely seal off a gas supply line temporarily, ensuring that repairs or inspections can be conducted safely without the risk of leakage.
✅ Temporary Sealing During Installation
When installing new piping systems, blank flanges are used to temporarily seal the ends of pipes until construction is completed.

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