Breakpoints for pipe flanges

[steph_a5]

Hi there,

I am just wondering if anyone can give me a breakdown on what each of the headings represent when doing a pipe flange connector. (unfortunately not all the dims appear in my little preview view)

A - Pipe diameter (get that)
B - Extension (assume set this to 10-15mm for how far back from flange face to end of pipe?)
C - Snap offset (get that, set to 0 as i have a gasket itm that comes in now)
D - Body thickness (i thought this was the OD of the flange, was miles too big so thought might have been half the OD but again too big?)
E - Body length (is there a way to add a snap point to this? sometimes we need to give dims for flange thickness especially on the bigger sizes when they are specd by code and not 1092 etc
F / G / H - again not really sure what they are for but dont seem to impact anything.

sorry if this is basic stuff but just wanted to check i was picking this up right (the body thickness one being the main one that's throwing me off)

thanks

[craigjonnson]

Hey Steph,

The body thickness is the flange diameter, however, the previous dialogue box has an option to include the pipe diameter (Yes/No). I'm guessing that you have this set to No if the flange is really large.
B - Extension from End of Fitting. I usually have this set to 1.6mm to allow the pipe to slip-in and set back for the internal weld.

Anyway, there's a heap of material on this here. https://help.autodesk.com/view/FABRICATION/ENU/?guid=GUID-54822E43-E639-4ECA-84BB-7AD66C109D21

[cadbyken]

There is also this https://help.autodesk.com/view/FABRICATION/ENU/?guid=GUID-4F0A9933-DBF8-40E1-8955-AE34C8D0F548

[madcad]

Did not know those resources existed.
Excellent, it is a bit confusing for Mech. I think some of the terms are from sheet metal.

[cadbyken]

There is an entire help file on the software which is mostly what was given to us back at a LVUGM (2009?). It was a binder with about 1100 pages.

[steph_a5]

thank you all

[steph_a5]

Is there anyway to add snap points to break points so you can get a snap from the outside edge of a flange in revit?

many thanks