Blind Flange Dimensions - Complete Reference Guide

Blind flanges are an essential component in piping systems, used to close the ends of pipelines, valves, or pressure vessel openings. They are primarily applied when future extensions of the pipeline are expected or when periodic inspection and cleaning are required.

Manufactured in different sizes and pressure classes, blind flanges are designed according to international standards such as ASME B16.5 and EN 1092-1 DIN PN specifications. These standards define critical dimensions including outer diameter, thickness, bolt circle, and number of bolt holes.

Engineers and designers often rely on blind flange dimension charts to ensure proper selection and compatibility with other piping components. The strength and thickness of a blind flange vary according to pressure ratings, ranging from Class 150 to Class 2500. Blind flanges also allow easy pressure testing of fluid flow equipment without welding.

On this page, you will find detailed dimension charts and tables for various classes and standards, making it a quick reference for professionals in the piping industry.