ISODRAFT
User Guide
Symbol Keys
: Offset Fittings
Offset Fittings
The following types of offset fitting may be defined:
Component Type
SKEY
Offset Filter
FO**
Offset Instrument
IO**
Offset Block
BO**
Offset Trap
TO**
In addition, all flanges (except LJSE) may be defined with offsets.
When defining an offset fitting, the start point for the defined shape will be the low point of the offset and the end definition point will be the high point of the offset, thus:
The ORIENTATION NONE option (see Section 11.2) should be used when defining offset fittings.
Normally, when the end condition FL is specified, flanges are generated and attached to the start and end points of the symbol automatically. When offset symbols are user defined, however, flanges are
not
added automatically; they must be built into the symbol or added by using the PSKEY attribute of the relevant p-points (see
Component End Conditions Defined By P-Points
). This principle applies also to the following non-offset fittings with flanged connections:
Component Type SKEY
Flame Trap
FTFL
Tundish (or Funnel)
TUFL
Flexible Hose
FXFL
1974 to current year.
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