Just started to make bolting for my new components. I have created collar/loose flange connection. Bolts and nuts are calculated correctly, but length is wrong. I get following error when creating isometrics....
(61:389) Using NEW bolting method
No valid BLRF attribute of CATREF for LJSE 2 of BRANCH /DN150/H1A/B1
(33:479) Cannot allocate bolts for LJSE 2 of BRANCH /DN150/H1A/B1
I have defined BLRF for loose flange but not for collar and I see what error message says... but I don't get it. Should I define BLRF for collar (which is LJSE)?
ok I have run some tests on this today and it appears that nothing has changed since I tested it years ago.
I Do not believe that Isodraft is making any allowance for bolt length of the LJSE. (it never did)
If I do not set a blrf on the LJSE I get the same message as you did But Isodraft produces a bolt with the length based on the BLRF set for the flange. It makes no allowance for the LJSE.
If you set a blrf on the LJSE the message disappears but the same length bolts are output making no allowance for the LJSE.
If I remove the LJSE from the pipe and force connect everything I get various warning messages but the isometric output still has the same length bolt.
My suggestion is that you make the boltref for the flange include the face thickness of the LJSE. Build the pipe with LJSE-FLAN-GASK-FLAN-LJSE
Do not set a blrf for the LJSE and ignore the message.
Because you have allowed for the LJSE thickness in the FLAN blrf the bolt length shoud come out correctly.
I think I have said before, It has been like this since new bolting was introduced.
A stub end should not have a bltref as it is not rated. It really needs to be ignored and the length built into the flange. That is what you need to do when a lapped flange is used with flared pipe. You cannot apply a bltref to pipe.
Thanks Pitch for this information. This is my first "home made" bolting attempt and it seem to work as far as it can be made with PDMS. I think I'm going to try your suggestion.
this depends on the bolting method you use, if you are using old bolting, check the bolt SPCO is available in the spec for the BLRF you specified to the LJSE.
I've make a project with Plastic pipes (metric-DIN) jointed by collar+losse flange, and used New Bolting.
I've created the Collar (LJSE) and the Blrfarray is NulRef
I've created new loose flanges with their Blrfarray (DIN bolts), but Ive changed in all the BLTP the Bthkness to "SUM PARAM 5 PARAM 6" that are the thickness of the flange and the offset.
For the waffer Valves I've placed the Blrfarray that match obviously with the flanges, but in the BLTP I've placed the Bthkness to 0.
As I can see is similar to your set up , so check the valve Blrfarray or the Bolts flange Bthkness, because in the catalog comes as "( ATTRIB RPRO FLTH )" and only when I've changed it it began to run.
I don't know what does it means ( ATTRIB RPRO FLTH ).
Another thing is to check that some attributes like Bolt diameter are with the correct value, once I've make a mistake writing 126 instead of 12 ant it gaves me the same eror than you.
Check also the COCO table and the Pitch indications.
I've asked to AVEVA local support and they help me , ( after I've tried it for hours), they are very fiendly, and if you can take a trainining , it's very useful.
