ISODRAFT
Reference Manual
Symbol Keys
: PCOM Symbol Keys
PCOM Symbol Keys
Component Description
SKEY
Plotted Symbol
P-points
Note
Block - Angle
BA**
1,2
Block - Offset
BO**
1,3
Block - Return
BR**
1,4
Expansion Bellows
EX**
1
Flame Trap
FT**
1
Block - Angle
BA**
1,2
Flexible Hose
FX**
1
Hose Coupling
CH**
1
Non-category Item
NC**
1
Plug
PL
Restrictor Plate
RP
Sight Glass
SG**
1,5
Slip Plate
SP
5,6
Slip Ring
SR
5,6
Spectacle Blind
SB
5,6
Tundish (Funnel)
TU**
1
Notes:
1.
Replace the ** characters in the symbol key with one of the following end condition identifiers:
BW for butt weld
CP for compression
SW for socket weld
FL for flanged
SC for screwed
PL for plain
2.
To use this symbol, the p-points must be arranged as shown in the following diagram:
3.
To use this symbol, the p-points must be arranged as shown in the following diagram:
Note:
That the horizontal offset may be zero; i.e. P0, P1, P2 and P3 may be coplanar.
4.
To use this symbol, the p-points must be arranged as shown in the following diagram:
Note:
That the horizontal offset may be zero; i.e. P0 and P1 (and similarly P2 and P3) may be coincident.
5.
If an orientation p-point is present in the point set, the orientation of this p-point will be shown on the isometric.
6.
The p-point set shown represents a typical arrangement for positioning and orienting the component, but is not mandatory.
1974 to current year.
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