A blind flange is a solid flange as shown above.The purpose of these is to block off a section of pipe or a nozzle on a vessel that is not used.
(A nozzle is typically a pipe coming out of a vessel andis usually flanged so it can be connected to valves or piping). Many times a nozzle will be blanked off with a blind flange for pressure tests in a plant, or simply because the customer does not need all the nozzles that were supplied on the tank.
FLANGE STANDARD(S) |
ANSI B16.5 (ASME B16.5), BS4504, BS 10, EN 1092-1, DIN, ASME B16.47, SANS (SABS) 1123 |
SIZES |
½” – 60” |
CORE MATERIAL |
CARBON STEEL, STAINLESS STEEL |
CONNECTING FINISH |
STOCK FINISH, SPIRAL SERRATION (OR PHONOGRAPHIC), CONCENTRIC SERRATION AND SMOOTH SURFACE |
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