PIPING BILL MATERIAL OF ISOMETRIC DRAWING/ SHOP MATERIAL DESCRIPTION

Bill of Materials (BOM)
Key Learning Points
 Identify what is a Bill of Materials
 Identify the purpose of a Bill of Materials
 Identify the personnel involved in compiling a Bill of Materials and using a bill of materials.
1.1 Bill of Materials
A Bill of Materials (BOM) sometimes referred to as the Material Take Off (MTO) lists all the items that go into a finished project or subassembly of that project. The Bill of Materials can be structured in levels indicating all the steps to final completion. This can let the bill of materials look like a tree with the finished good or subassembly as root.
1.2 Purpose of the Bill of Materials
A bill of Materials has different functions depending on which level of the BOM you have and job description you are carrying out.
For example in pipe fitting you could have the following layers:
 BOM for each individual piping isometric
 BOM totals for all the piping isometrics for the clean steam system
 BOM totals for all clean systems that use high purity piping
 Customer name
 Project description
 Company Job Number
 Person who prepared the BOM
 Drawing number
 Revision number and date
 Component description
 Component
Tell about fit up and complete detail of 45 degree offset
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Work with safety CALCULATING OFFSET FOR 45 DEGREE ELBOW
TAKE OFF 45 DEGREE ELBOW
CALCULATE TRAVEL
CALCULATE RUN
CALCULATE OFFSET
What is a pipe offset? What is a rolling offset?
In doing some pipe works, we sometimes encounter situations wherein we have to connect two lines of pipes that are not quite aligned with each other. These two pipelines could be offset horizontally or vertically. When we see a combination of both horizontal and vertical offset, or in other perspectives, a combination of offsets in two different directions, we call it a pipe rolling offset.
To deal with pipe offsets, we can use a bent pipe fitting to change the direction of the pipeline and another bent fitting to return to the final direction of the pipeline. In this calculator, we tackle how to find the travel length, which is the length of the diagonal that connects the two points at which the pipeline changes directions
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 Material Size
 Material Quantity
An example of a typical bill of materials is given on the next page.
2.2 Purpose of the Elements
The information recorded on a Bill of Materials is used to provide traceability and accountability for companies:
Customer Name: Often used as the first method of dividing and filing information.
Project description: Is used to sub-divide and file individual projects for one specific client.
Company Job Number: This is used to track cost elements in a project and is assigned to materials and labour so the all costs can be tracked.
Prepared by: This identifies who prepared the bill of materials and ensures accountability for it’s accuracy. In large organizations it also allows for someone to query information given in the BOM after it has been issued to site.
Key Learning Points
 Identify the key elements of information for a Bill of Materials
 Identify why this information is critical
 Describe automated systems for generating bills of materials.
Pipefitting Drawing number, revision and date: This ensures traceability and is used to ensure that the most up to date information is being used.
Component description: Basic description of the component required, e.g. Pipe, elbow, flange etc..
Component specification: This gives detailed information on the material to be used. This information is used by the draughtsman to complete the drawing, the purchasing personnel to order the material and the pipe fitter to verify that he/she has received the correct material. This reference will call up a piping specification which will give detailed information on how the pipe line should be installed, supported, inspected, tested and much more.
Material Size: Indicates the size of the components required.
Material Quantity: Indicated the quantity of the components required.

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[@pipingtechnicaltrainer3522]

Welcome

[@pipingtechnicaltrainer3522]

Dear viewers kindly make correction weld number 01 is FW

[@vineethv3217]

Ok

[@selvaganesh4782]

OK...

[@moniharbegam5545]

Easily I understand sir

[@RahulPatel-sm5br]

Isometric drawing me kaise dekhte hai ki material kaun sa hai

[@saranyadevi6468]

Isometric drawing processing plant inside equipment connection esily how to find out immediately update sir please.

[@JayaKumar-to5rv]

Excellent class Sir please teach us rolling drowning

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[@kannan9597]

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clearly samajh hua or video lekar aao sir aur drawing ke bad kuchh bhi hai Na sab kuchh batana sir

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please create a video on Billing and measurements sheet

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[@raaz_20]

i read someday isomatric piping drawing on youtube.but i can't understand but i watched your video about isomatric drawing i compeletly understand easly thanku. nd i requst you make a video P&id drawing explain.

[@pipingtechnicaltrainer3522]

U r welcome dear Thanks for your valuable comment

[@elenaozyurek1138]

can you pls explain how to calculate cut pipe length?

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pls explain more about cut pipe length

[@sen-ow7ub]

Good information. Future please make some practice explanation with piping components. However yours all' post are amazing. Thanks please make more videos about piping

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Do make video on... How to find out elbow center of 30,45 and 90 degree physically by using measuring inch tape

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Tafazul Adil dear I will try to make videos on this topic.

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Sir rolling drowning ka photo daliy please

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Sir can get the drawing in comment box

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Material konsa हे sir

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Which metal use for this pipe line

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Plz send me this drwaing sir

[@corneliucirciumariu]

Yes ! wonderful video extremely comprehensive ! I am new in this field but i found a missing information about item no 12 there is no given position to this item so i believe there is no possible way to put it on my free will ??? so if you are so kind to explain this to me . thank you very much !!

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Mahdi Saleh Al-Mashhad

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Very good explanation.

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Codination kaise check karenge

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Valve direction is important to point out. Nice video though.

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Glad to hear that

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[@dreamdrama57]

What is cut pipe length

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Greetings, because they don't put subtitles in Spanish, it would help those of us who don't speak English. Thank you 

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I am understand bill material Thank you👍

[@pipingtechnicaltrainer3522]

You are very welcome

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Mujtaba Ahmed

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thank you, sir

[@Stormrider-cb2rq]

Sir i have a question what is the length from sf to threaded olet? Can you explaine the standards of bill of materials?

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Good I understand

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Tamjham teacher

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Sir,the , what means the sectional part in the drawing,.

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[@meghawasnik1594]

Very nice explained.. Thank you.

[@SajjadKhan-jv9hn]

Concentric reducer jab aa Jaye to pipe size kaise calculate karenge sir Cut pipe kaise calculate kaiye h aap

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Thank you

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good

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Hi..very interesting so how will I know what material it is by just looking at the drawing?

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[@mdaman2930]

Thanks

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Bro one more isometric drawing same achhe se all thing smjha dho

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Plz one more drawing sb ache se Smja dho clr ho jayega

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Plz plz but HR point achhe se smjhana plz

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Thank you well explained Make more videos on the topic

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I' m don’t understand cut pipe length. Please tell me, what is this.

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Very helpful video sir how to marking of pipe double rooling

[@mdrehan897]

Thank for this video sir Easly understand any direction in drawing

[@VictorAdejohOjima]

Thanks, what about item code 8:41 , what do they mean?

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Thank you. Sir👍

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[@pipingtechnicaltrainer3522]

You are welcome

[@kemmyd3918]

How do you find heat #. sometimes finding the heat number can be a little tricky on pipe fittings

[@mickyjamesalvin8578]

Thank you for brief explanation

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👍👍

[@mohdsadiq2477]

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[@jeniantony]

Can u explain that 45 degree offset

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Please explain cut pipe length

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