Flanges are classified based on face finish as:-
(A): Smooth Finish
(B): Serrated Finish
Where the Smooth finish flange & Serrated finish flange finds its use.
Answer: The Smooth Finish flange is provided when metallic gasket is provided and serrated finish flange is provided when non-metallic gasket is provided.
What are the Types of serrated finish provided on flange face.
A. Concentric
B. Spiral (Phonographic)
How the Serration on flanges is specified.
Answer: The serration on flanges is specified by the number, which is the Arithmetic Average Rough Height (AARH)
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