minimum required thickness ASME B31.4-2016 design code

The scope of ASME B31.4 Design Code

The code used for design and construction purposes for a pressure piping system is the ASME B31 Pressure Piping Code. ASME B31 Pressure Piping code includes piping systems that have operating pressures ranging from vacuum to high pressure. ASME B31 Code is not a book that provides detailed information on a job. However, the ASME B31 code only provides guidance on the minimum requirements for pipe installation according to its designation. The ASME B31 Code consists of a number of “sections” that are independent and are also published separately. However, all of them remain under the auspices and direction of[…]

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minimum required thickness as per ASME B31.3 -example

example of minimum required thickness calculation for process piping as per ASME B31.3

Pipe selection and thickness calculation A piping designer work to design a crude oil piping system in an oil and gas plant. He selected the pipe size, pipe material, pipe thickness and make a recommendation to the logistics team to purchase the pipe according to the BOM – Bill of material. First of all, he get the technical data from the Process and Flow Diagrams made by the Process engineer. These data indicate that the pipe size is 18 in, with a design pressure of 300 Psi, a design temperature of 194 F and the pipe material specification using carbon[…]

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ASME B31.3 minimum required thickness calculation

pipe thickness calculation as per ASME B31.3 design code

thickness calculation as per ASME B31.3 In general, there are 3 types of stress that occur in the process piping in a plant. The first is the material stress that occurs due to internal pressure. There are 2 kinds of this stress i.e. circumferential stress and longitudinal stress. Simply put, circumferential stress has a value of 2 times of longitudinal stress so that the designers often only calculate circumferential stress. Circumferential stress occurs in longitudinal joint of pipe. There are several types of longitudinal joint in the pipe depend to the pipe type (e.g. API 5L grade B) and there[…]

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ASME B31.3 design code

Design code for process piping as per ASME B31.3

Process Piping Code As a means of fluid transportation, piping plays a very important role in the production process in the chemical industry, Petrochemical, upstream & downstream Oil & Gas Industry. Mechanical and facility engineers need to develop a deeper knowledge about design, coding & standardization, material selection, fabrication, and pipe maintenance, to be applied in the field effectively. at least Mechanical engineers working on a plant, must understand “Piping System Design for ASME Piping Process B31.3” and inspection repair & alteration for in service piping according to API 570. ASME B31.3 contains requirements for piping typically found in petroleum[…]

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