Welcome to Hardhatengineer.com. I am Varun Patel. In this video, you will learn about most common questions regarding code and standard that you may face during the interview.
You will learn about these piping interview questions;
- Which code and standard are used in Oil and Gas?
- Which code is used for process piping and power piping?
- What are the most commonly used ASME Sections?
So please watch these video till the end. And don’t forget to subscribe to my channel because that way you will get regular updates on a new video. You can subscribe right now by just clicking subscribe button on your screen. So let’s start with the first question.
Which code and standard are used in Oil and Gas?
If you are working in Oil and Gas, then most commonly used code and standard are developed by various American Institute. Some of them that you can include in your answer are;
- First is ASME Codes – ASME is American Society of Mechanical Engineer. ASME Published various designed codes and dimension standard that are used in refinery, petrochemical plant and power plant.
- Next is ASTM Standard – ASTM is American Society for Testing and materials. ASTM published a various material standard that used in almost all industries. ASTM has published a total of 15 sections out of these only section 1, section 2, and section 3 is used very frequently process industry. Within these sections, there are different volumes that cover various material. For example, Section 1 has eight volumes, section 2 has five volumes, and section 3 has six volumes.
- Next is the API Standard and Recommended Practice – API is American Petroleum Institute that published Standard and Recommended Practices that are used in the petroleum This is industry specific institute whereas ASME and ASTM published standards and codes that are used in general application also. Recommended practices are used in operation and maintenance of the process facilities.
- Next is AWS – AWS is American welding society. As the name suggests, AWS published various code and standard that use for welding. ASME Section IX is also used to developed different welding procedure that used in a process What I have seen is AWS codes used in structural application more than the process application. As most process piping and equipment are designed using ASME Code and Standard so they follow ASME Section IX for the welding.
- Next is AWWA – AWWA is American Water Works Association. Standard published by AWWA is used in a process plant for water treatment facilities and water transport pipeline.
These are the some of the well-known American Standard and Codes that regularly used in any process facilities such as refinery, petrochemical plant, offshore and onshore oil production facilities.
I believe you know what code and standard are? If not, you can check my earlier video on what is code, standard, and specification? You can watch that video to know the difference between these three terms. Next question is.
Which code is used for process piping and power piping?
To answer this question, you have to know the code published by ASME under B31 series. ASME B31 series covers various codes that are used for different type of pressure piping. List of code currently offered by ASME under B31 series are,
- ASME B31.1 – Power Piping.
- ASME B31.3 – Process Piping.
- ASME B31.4 – Pipeline Transportation Systems for Liquids and Slurries.
- ASME B31.5 – Refrigeration Piping.
- ASME B31.8 – Gas transmission & distribution piping system.
- ASME B31.9 – Building services piping.
- ASME B31.12 – Hydrogen Piping and Pipelines
Out of this list, Power Piping and Process Piping are very important if you are working in Oil and Gas and energy industries.
So, there may be an additional question like what is covered in the Power Piping and Process Piping.
Let’s see the scope of Power Piping and Process Piping.
- ASME B31.1 – Power Piping that covers, piping that typically found in electric power generating stations, in industrial and institutional plants, geothermal heating systems, and central and district heating and cooling systems that deal with steam.
- You have to note that this Code covers only external boiler piping with high temperature, high-pressure water boilers in which steam or vapor is generated at a pressure of more than 15 psi; and high-temperature water is generated at pressures exceeding 160 psi and/or temperatures exceeding 120°C.
- ASME B31.3 – Process piping that covers, piping typically found in petroleum refineries; chemical, pharmaceutical, textile, paper, semiconductor, and cryogenic plants; and related processing plants and terminals that handles various fluids including hydrocarbon liquid and gases.
Let’s move to the next question.
What are the most commonly used ASME Sections?
Here is the list of most commonly used ASME sections;
- ASME section I: – Rules for construction of power boiler.
- ASME Section II: – Materials.
- Part A – Ferrous materials.
- Part B – Non-Ferrous materials.
- Part C – Specification for electrodes & filler wire.
- Part D – Properties.
- ASME Section IV: – Rules for construction of Heating Boiler.
- ASME Section V : – Non- destructive Examination.
- ASME Section VI: – Recommended rules for care & operation of heating Boiler.
- ASME Section VII: – Recommended guidelines for care of power boiler.
- ASME Section VIII: – Rules for construction of pressure vessels. (Division I, II & III)
- ASME Section IX: – Welding & Brazing qualification.
Out of this list, ASME Section II, Section V, Section VIII, and Section IX is most commonly used in the Oil and Gas industries. Section II gives you the list of material, their properties, and list of electrodes and wire that used to weld metallic material.
Section V will give you the guidelines and procedure for how to conduct non-destructive testing such as Ultrasonic Testing, Radiography Testing, Liquid Penetrant, Magnetic Particle, eddy current and visual Examination.
Section VII has three divisions that cover rules for construction of pressure vessel that used in industries. Division 1 is Rules for Construction of Pressure Vessels. Division 2 is an alternative Rules, and Division 3 is an alternative Rules for Construction of High-Pressure Vessels.
Section IX is used to establish welding producer that is WPS and welder qualification requirements.
This is the end of the video. In the next video, I will explain to you few more piping interview questions about the material and dimensional code and standard for piping components.
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