BOP not working on pipes with slope

[rukTPZMK]

I have an issue. I want to be able to put in an annotation of BOP (Bottom of pipe). But Plant only shows the BOP to be the starting point.

So if I draw a pipe from 0,0,0 and up, with my DN80 pipe, my bottom of pipe annotation will be -90mm.
If I draw it from 0,0,0 and down, my bottom of pipe will be the same -90mm.

Does anybody have a solution for this? See the attached video cast for a demo. 🙂

[h_eger · Accepted solution]

@rukTPZMK ,

BOP is only displayed for horizontal pipes whose start and end point have the identical Z value. Not for sloping pipes or spatial jumps.

[rukTPZMK]

But should that not be possible?
I mean, the pipe is still "horizontal"; it is just sloped.
It is the same case if you draw a pipe straight in the Z-axis. If you start from the top and draw it straight down, the BOP will be placed at the top and not at the bottom.

In my view, the BOP is then misleading, and I can't see where it would make sense to use it if you can only apply it to horizontal pipes. Because if you have a section view or similar, you do not know if the pipe you are annotating is sloped or not.

But thanks for the answer, H_eger. I know I have a lot of questions at the moment, so thanks alot. 🐵

[jflorita · Accepted solution]

I get what you're trying to say, but a sloped pipe is not ‘horizontal’—that’s a contradiction in itself.
A horizontal pipe maintains a constant elevation, which is why you can annotate a single BOP value.

However, for a sloped pipe, the BOP continuously changes along its length.
Trying to annotate it as a single value wouldn’t make sense because there are infinite points, each with a different elevation.

Once again, horizontal means no slope! That’s how geometry works.

[Washingtonn · Accepted solution]

While sloped piping is not truly 'horizontal', it is considered as horizontal pipe in most Mechanical and Plumbing Codes - providing it is routed within 45 degrees of true horizontal. That being said, annotating a pipe at different points (such as end of runs, crossing other pipes, passing through footings, etc....)  is a common practice, possible with some software (see pic of 1/4"/ft slope below), and should be included in Plant 3D.

[rukTPZMK]

Thanks for all the answers! 🙂 I guess I got what I asked for, so I will tell the designers to use ordinate dimensions instead, combined with sections. Thanks for the clarification. 🙂 

[khanubaid0152]

The issue seems to be that the BOP (Bottom of Pipe) annotation is fixed at -90mm regardless of the pipe direction. You may need to adjust the reference point or update the annotation settings to reflect the correct BOP value based on the pipe’s orientation.

[rukTPZMK]

Based on the answers , is that not possible at the moment.