Bolt selection for different rating in one spec

 
  • [QUOTE=pitch;17506]my mistake, Its about 13 years since I wrote this
    May help somebody


    Pitch,
    This bolting writeup is very nice.  Thanks!
  • Sorry i still dont agree or may be dont understand how you will achieve this.....u mind showing an example of one boltspec from which you can correctly get bolt lengths as mentioned below....remeber all these flanges will be in one piping spec

    waiting to hear back from you....

    Rat FL-DN Bolt-Dia FL-Th1 FL-Th2 GT Nut1 Nut2 xtra-len Std-Bolt-Length
    150   15   1/2"   11.5   11.5   3.2   10   10 ??  60
    300   15   1/2"   14.5   14.5   3.2   10   10 ??  75
    600   15   1/2"   21.5   21.5   3.2   10   10 ??  80

    Cheers
  • You should have created a length table for each bolt diameter.
    The table for 1/2" dia should contain entries for 60 70 and 80 (plus any others you need)

    Isodraft accesses this table.
     
    Read the document PDMS-BOLTS.zip from the previous page.

    I kept this as simple as possible
  •  

    $S-
    $(  BORE UNITS MM    $)
    $(  DISTANCE UNITS MM    $)
    
    NEW SPECIFICATION /BPAMSEE
    VERSION 1151
    MATREF =0
    FLUREF =0
    RATING 0.000
    LINETYPE NULL
    BSPEC =0
    
    TEXT 'BOLTING'
    
    HEADING
    TYPE      NAME       BDIA  BTYP  BSEL SHOP  CATREF DETAIL                                       MATXT                         CMPREF BLTREF
    DEFAULTS
    -          -         -     BOLT  DEF   =
    BOLT      */BBAMSEED 12.70 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEED
    BOLT      */BBAMSEEE 15.88 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEE
    BOLT      */BBAMSEEG 19.05 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEG
    BOLT      */BBAMSEEI 22.23 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEI
    BOLT      */BBAMSEEJ 25.40 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEJ
    BOLT      */BBAMSEEK 28.58 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEK
    BOLT      */BBAMSEEL 31.75 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEL
    BOLT      */BBAMSEEM 34.93 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEM
    BOLT      */BBAMSEEN 38.10 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEN
    BOLT      */BBAMSEEO 41.28 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEO
    BOLT      */BBAMSEEP 44.45 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEP
    BOLT      */BBAMSEEQ 47.63 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEQ
    BOLT      */BBAMSEER 50.80 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEER
    BOLT      */BBAMSEES 57.15 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEES
    BOLT      */BBAMSEEU 63.50 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEU
    BOLT      */BBAMSEEW 69.85 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEW
    BOLT      */BBAMSEEX 76.20 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEX
    BOLT      */BBAMSEEY 79.38 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEY
    BOLT      */BBAMSEEZ 88.90 BOLT  DEF  FALS  /BOLT  /STUDBOLT.+.2.HVY.HEX.NUTS.ASME.B1.1/B18.2.2 /ASTM.A193.GrB16/A194.Gr7 =0     /BBAMSEEZ
    $S+
    

  • Hello,
    can i use this as BLTP attribute?
    BTHK (ATTRIB RPRO FLTH)
    where RPRO FLTH is the flange thickness, with this i can use any parameter in the scom.
    Regards.
  • yes. we do the same.
    For FLTH, you need to create the DTSE under CATE and its member DATA should have the Dkey 'FLTH' which is pointing towards your CATE flange thk parameter.

    that's it simple.
  • In my BTSE  NOFF BDIA BTYPE & BTHK are unset

    BDIA BTYPE & BTHK are set in the BLTP

    No off is according to the number of BLTPs in the BTSE.
  • thanks pitch,
    I made the changes suggested and it works fine.