drawing design difference 1

[shivaaraam]

hello ..
I have question on drawings of centrifugal pump and comprossers.the thing is how we identify through the drawing is compressor or pump.is there any changes in drawing dimension or anything else .pls advise me

 

[Belanger]

A drawing is meant to give the physical requirements of what a part or assembly should look like after manufacturing. Thus, the most important things are dimensions, tolerances, etc.
A drawing doesn't necessarily say what the part or assembly does, other than the name given in the title block, or maybe some special notes.

John-Paul Belanger
Certified Sr. GD&T Professional
Geometric Learning Systems

 

[Tarmo]

Hi,
Every drawing is unique, therefore you should always have title block with drawing name and number. Drawing name can be same for different drawings, for example "flange", "shaft" etc, but drawing number need to be always unique. I do not know your drawings numbering system, but one way to make identification very easy between pump and compressor drawings is to add some certain letter or number combination into your drawing numbers. For example all pump drawings numbers start with letter "P" and all compressors drawings numbers start with letter "C".

 

[dgallup]

Beware "intelligent" numbering systems. Either you put a huge amount of forethought into them and rigorously enforce the rules or it all falls apart in about 6 months. The drawing name can have a lot of modifiers, it doesn't have to be just a "flange". You might want to check out MIL-STD-300 chapter 300 Drawing Titles.

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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

 

[KENAT]

Or ASME Y14.100 - especially the non mandatory appendices.

Posting guidelines faq731-376

http://eng-tips.com/market.cfm?

(probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484​

 

[3DDave]

dgallup,

Naming can get out of hand so fast and no one orders parts by name - so I figured that everything should be either a shim or a bracket. If it fits between two parts, it's a shim. If it attaches between two parts it's a bracket. O-ring - shim. Waterpump housing - shim. Engine block - bracket. I guess the third category - fastener, for what hooks things to brackets o traps shims between brackets.

Any more slip and you get - "bracket, lower left, compressor mid, liquid-side. And then the ERP guys take that and make it - "bracket, low"

What do they order? 189-154.

 

[dgallup]

Naming on the drawing is not for ordering, that's one of the part number functions. But I hate when I have 50 flange drawings and nothing to tell me which one I want to fix my gizmo without an ERP system. I don't care that the ERP guys shorten it to something meaningless, they've got the part number. Can part naming get ridiculous, certainly, particularly if you have draft persons with no product knowledge assigning it.

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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.