topic Re: P-Trap Orientation in Fabrication CADmep Forum

P-Trap Orientation

Anonymous — Thu, 21 May 2015 16:26:38 GMT

I am running designlines for waste and vent with sanitary fittings. I have places where I need to put p-traps. Some p-traps come in at the correct orientation. However,most of them I am placing do not.

Re: P-Trap Orientation

rptjr — Thu, 25 Jun 2015 16:58:28 GMT

I think that has to do with your source point. Source should be the lowpoint of the sanitary system. On vent I make it the high point.

Where is your source point on the affected p-traps?

Re: P-Trap Orientation

greg.mosher — Tue, 25 Aug 2015 18:09:52 GMT

It not only has to do with the Source Point but the direction of takeoff for the P-Trap. For Desig Line you want the direction in to be from the top of the P-Trap and not the leg. With the attacher arrow it would be reversed with the direction in from the leg. We use the P-Trap with Design Line and the attacher arrow so I have a button script set to "takeoff by other end" set as the default.

Re: P-Trap Orientation

bknapton — Tue, 26 Jan 2016 15:05:04 GMT

It depends on the design line source along with flow direction.

Re: P-Trap Orientation

lei.qiao — Mon, 22 Feb 2016 08:10:36 GMT

Following two items will impact the direction of the P-Trap.

The location of inlet & outlet of the P-Trap. the settings should make the connection indicators the same with 2nd image.

The setting of the service. It must be set as "Extract" for the drainage service.

When both above settings are correct, the behavior of the P-Trap will be correct. You could check if the P-Trap with incorrect behavior has the incorrect settings.

Hope my reply will be helpful.

Re: P-Trap Orientation

Anonymous — Wed, 27 Sep 2017 19:17:06 GMT

I too have this same problem and all of the solutions listed on this thread do not fix the issue. Is there anything else that could control this?