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The Metals Factory is a professional manufacturer and exporter of spectacle blind flanges with in-house precision machining facilities. We produce spectacle blind flanges as per ANSI B16.5, DIN Standard and EN1092-1 in size range of 1/2” to 24” NPS. We can also produce and supply spectacle blind flanges for high pressure and high temperature applications. Our manufacturing process for spectacle blind flanges includes an adequate heat treatment and the examination of chemical and mechanical properties. We have CNC machines as well as conventional lathe machines for machining and processing various types of spectacle blind flanges. Spectacle blind flanges are generally made from forged bar stock. The spectacle blind flange is a safety device used to isolate a section of pipeline or equipment when they need to be inspected or removed from piping system. A spectacle blind is often made from two metal discs that are attached to each other by a small section of steel. The shape is similar to a pair of glasses or “spectacles” – hence the name spectacle blind. One end of the blind will have an opening to allow flow through the pipe during operation and the other end is solid to block flow during maintenance. They are generally installed as a permanent device to separate process piping systems.