PIPING BILL MATERIAL OF ISOMETRIC DRAWING/ SHOP MATERIAL DESCRIPTION
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- Опубликовано: 14 сен 2020
- 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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Easly understand any direction in drawing
I am understand bill material Thank you👍
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Tamjham teacher
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Mzher
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Po
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Top
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Thanks
How do you find heat #. sometimes finding the heat number can be a little tricky on pipe fittings
Mahdi Saleh Al-Mashhad
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 !!
Ahmad jameel Al Ali
Dear viewers kindly make correction weld number 01 is FW
Ok
OK...
Thnk u sir... Usefull
Today I subscribed your channel. It's Informative and helpfull during this new normal situation.
Kindly share about Piping supervisor duties?
what are the essential knowledges required to a piping proffessional?
how can we successfully crack any piping interviews?
Thank sir
Thank you very much sir
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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.
U r welcome dear
Thanks for your valuable comment
Tank you for is morooco
Which metal use for this pipe line
Hi..very interesting so how will I know what material it is by just looking at the drawing?
Sir,the , what means the sectional part in the drawing,.
Mujtaba Ahmed
Valve direction is important to point out. Nice video though.
Do make video on... How to find out elbow center of 30,45 and 90 degree physically by using measuring inch tape
Tafazul Adil dear I will try to make videos on this topic.
@@pipingtechnicaltrainer3522 thanks sir g in advance...
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Tafazul Adil yes dear
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ziyad adnan Al Khudair
can you pls explain how to calculate cut pipe length?
pls explain more about cut pipe length
Easily I understand sir
Isometric drawing me kaise dekhte hai ki material kaun sa hai
Can u explain that 45 degree offset
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Very helpful video sir how to marking of pipe double rooling
Sir i have a question what is the length from sf to threaded olet? Can you explaine the standards of bill of materials?
please create a video on Billing and measurements sheet
Brother how to calculate the total length of pipe used in single sheet of drawing.
Isometric drawing processing plant inside equipment connection esily how to find out immediately update sir please.
Please tell about the symbols for existing line, future lines, line break etc...