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Mechanical isolation - Blind plate/blind flange

Mechanical isolation - Blind plate/blind flange

Jun 11, 2020

Mechanical isolation - Blind plate/blind flange

Blind flange isolation

The use of a blind plate blinds areas associated with the operating area that may cause energy leakage. Ensure that isolated energy sources are not released at a cost to human health and the environment.

Install at the end of an open pipe or valve

A blind or flange of the corresponding pressure level (marked on the side of the flange) must be used

The vent and drain valve are opened to prevent pressure buildup

Precautions for blind plate isolation

Prior to installation, confirm that the equipment has been decompressed and emptied

The installed blind plate must meet the requirements of the pressure class. The blind plate must be checked for corrosion or other damage before use

Personnel should stand on the side to separate the flange to prevent possible liquid or gas injection to the human body injury

A new gasket must be used when installing a permanent blind