New Bolting: Stud & Nuts (rather urgent)

Hi everyone,

I know that this topic is constantly raised but I have looked through the posts and still can't work out the concept of bolting.
I have always used old bolting in PDMS but now with E3D I want to use the new bolting method.
Looking at the Piping Catalogues and specifications training manual it looks like you're supposed to add both the stud and nuts to a bolting spec and then this is referenced by the piping spec.
But then I am not sure which SBOL I am supposed to use. The sample catalogue has a mixture of old and new bolting and is a mess.
I am currently using the BLIS /BLIST-METRIC-HD-NUT as the Bltref for my bolting spec and for the SBOLs typically its the following:

Name /MSTUD-HD16
Type SBOL
Lock false
Owner /BLIST-METRIC-HD-NUT
Nstdblength /M16
Bdiameter 0
Length 0mm
Noff 0
Xtralength 3mm
Bitems NUT NUT
Bitlength 16mm 16mm
Bltweight 0kg

and this is completely different to the older types of SBOLs i am used to

Name /ISBBD
Type SBOL
Lock false
Owner /I#150.STUD
Nstdblength /1/2
Bdiameter 12.7
Length 57mm
Noff 4
Xtralength 0mm
Bitems unset
Bitlength unset
Bltweight 0kg

which one am i supposed to use? are there any other SBOLs like /MSTUD-HD16 but without the requirement for nuts? coz I don't want the stud and nuts to come out as 2 separate items but just like "stud with 2 nuts"
sorry for the waffle and for covering a much discussed topic

http://52.178.132.139/showthread.php?t=7362&highlight=new+bolting

coz I don't want the stud and nuts to come out as 2 separate items but just like "stud with 2 nuts"

Then you need to leave BITEM and BITL attributes 'unset' and put nuts (2 nuts in your case...) thickness inside XTRA attribute.
So from the above example XTRA should be 16 + 16 + 3 = 35

.....then you do not have to add NUTs to your bolting spec....just create a correct Detail Text that includes nuts as you said: ....stud with 2 nuts....

Hey mate,
I read that and the guide pitch wrote and still find it confusing. Also he is using his own bolt lists etc I want to use as much standard aveva stuff as possible

hi corrado,

just to double check with you, does the ACP catalogue contain a BLIST with the BITEM and BITL unset? I can't find any and was hoping to use as much standard catalogues as possible. I'm not sure if that's a bad idea but then if there's a new release of the ACP catalogue then I won't have to redo my catalogue just replace the entire ACP project

also i forgot to ask what is the extra length of 3mm for? is this the extra length of free threads?
because I have never done flange bolting before and I'm not sure what the standard is. In the link below supposedly its 1/3 the bolt diameter
http://www.wermac.org/bolts/bolts_method-for-calculating-stud-bolt-lengths-for-flanged-connections.html

also disregard:

[COLOR=#333333]just to double check with you, does the ACP catalogue contain a BLIST with the BITEM and BITL unset? I can't find any and was hoping to use as much standard catalogues as possible. I'm not sure if that's a bad idea but then if there's a new release of the ACP catalogue then I won't have to redo my catalogue just replace the entire ACP project

I will create the BLTA and members[/COLOR]

 

i worked out where i was going wrong. I hadn't changed the default stype for the bolt headings to BOLT so isodraft was looking for a STUD