Flange Leakage Evaluation based on NC 3658.pdf

Flange Leakage Evaluation based on NC 3658.3 Method method using Ca... http://processpiping.blogspot.com/2013/08/NC-3658.3.html#.Ul0w7VNAaQA

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8/30/2013

Flange Leakage Evaluation based on NC 3658.3 Method method using Caesar II Anup Kumar Dey Caesar II, Flange, flange leakage checking, Flange Leakage checking in Caesar II, NC 3658.3, piping stress, piping stress analysis No comments

This is the last post on the topic Flange Leakage Evaluation using Caesar II. I had already published 3 more posts on this topic. Click here to visit those. In this section I will describe the methods of flange leakage evaluation by NC 3658.3 method using Caesar II. Applicability: NC 3658.3 Method for flange leakage evaluation can only be applied if the following two conditions

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are met: 1. Flanges, bolts and Gaskets used are designed based on as specified in ASME B 16.5a and 2. Boting material must have a allowable stress value at 100°F(38°C) >=20000 psi (138 MPa) (High Strength Bolting)

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Governing Equation: By NC 3658.3 method the generated external moment (Mfs) is limited to a value as provided by the below mentioned equation: Mfs