topic Re: Pipefitting, connector size not changeble by grips in project in Revit MEP Forum

Pipefitting, connector size not changeble by grips in project

ReneBogersREBO — Tue, 19 Mar 2019 09:12:22 GMT

Hi all,

I have built some pipefittings, but can't get them ajusted with the blue texts in project.

When selecting the fitting, and change size in pulldown list, that works ok.

But when wanna change the blue texts apearing when selecting family, it tells me its -609.6 mm.

Any ideas?

Re: Pipefitting, connector size not changeble by grips in project

Anonymous — Tue, 19 Mar 2019 14:43:08 GMT

Use look up table to make the connector size changes automatically with the pipe size

Re: Pipefitting, connector size not changeble by grips in project

ReneBogersREBO — Tue, 19 Mar 2019 15:51:19 GMT

I am using LookupTables and that works perfect.

BUT I also want it possible to ajust the fitting size, when not connected to a pipe

Re: Pipefitting, connector size not changeble by grips in project

Secttor — Tue, 19 Mar 2019 20:20:02 GMT

@ReneBogersREBO you want to be able to manually edit the blue text with the diameter instead of changing the value from drop-down list?

Re: Pipefitting, connector size not changeble by grips in project

ReneBogersREBO — Tue, 19 Mar 2019 21:13:49 GMT

Correct!

It's not particular my wish, but a wish from some Revit users.

Not particular for knee and bends, but especially also for transitions (which have 2 different size connectors).

Those transitions cant change by drop-down list, cause they have 2 different sizes.

Re: Pipefitting, connector size not changeble by grips in project

ryan.lenihan — Wed, 20 Mar 2019 06:32:39 GMT

the -609.6 looks like it's your elevation. you can't have a -609.6 fitting size.

if this is in regards to transitions, check my reply to your other post but basically this is not how transitions work. you need to tell your users to change the pipe size and the transition will change with it.

most revit pipework and fittings works this way (change the pipe size, not the fitting)

Re: Pipefitting, connector size not changeble by grips in project

ReneBogersREBO — Wed, 20 Mar 2019 08:43:00 GMT

It isn't the elevation.

We are not modeling standard water or heating pipes. We are modeling systems for swimmingpools using high pressure PVC.

Here a picture top make it more clear:

The left Tee is standard.... there is 1 tee with 3 pipes in it.

The right Tee is different, there is 1 tee, with 2 pipes and 1 union/transition, this un/trans has 1 pipe and 1 Tee

Hope I made myself clear.

If I change to UNION instead of Transition, then problem is solved, maybe I go to that direction.

Re: Pipefitting, connector size not changeble by grips in project

ryan.lenihan — Thu, 21 Mar 2019 00:58:40 GMT

from what i gather, the reasoning behind what you're trying to do is because your revit users want to use the following workflow

draw pipe
manually place tee fitting
manually place union/transition piece
manually place pipework branch

if that is the intention, it will be very slow to model this way. yes the union solution would work, but it's not the optimal workflow for modelling piping.

i absolutely understand what you're trying to achieve, it's just not a "problem with revit" as the transitions are designed to work a certain way and the workflow your users are following is well.. not the intended workflow.

Re: Pipefitting, connector size not changeble by grips in project

ReneBogersREBO — Thu, 21 Mar 2019 15:17:25 GMT

Last thing, then it's all clear to me, how to tackle this the best way.

I have a Tee piece (ø200), with exists in 3 different types of brances (other types don't exist).

200-200, 200-160 and 200-110.

When the Tee-piece exists then it will be automatically been modelled.

Main-pipe is ø200

Brance is ø200, ø160 or ø110

But what about this situation:

Mainpipe is ø200

Brance is ø125

What I really would like to have, that it is drawn like this:

a Tee-piece (200-200 or 200-160)

a Reducing bush (transition/union) (200-125 or 160-125)

(Q: then I need to declare my fitting as transition instead of union I guess?)

And this situation:

Mainpipe is ø200

Brance is ø32

What I really would like to have, that it is drawn like this:

a Tee-piece (200-110)

a Reducing bush (transition/union) (110 -50)

a Reducing bush (transition/union) (50-32)

(Q: I don't think this is possible?)

Re: Pipefitting, connector size not changeble by grips in project

fabiosato — Fri, 22 Mar 2019 01:17:28 GMT

Hello,

Usually I leave a very short segment of pipe, like 1 or 2 mm, so it can drive the pipe size, otherwise these complex combinations are not possible.