PCOM Symbol Keys
- Last UpdatedAug 19, 2025
- 3 minute read
|
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 |
Note:
|
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: The horizontal offset may be zero; for example, 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: The horizontal offset may be zero; for example, 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. |
For components with more than 4 connections, see Pipe Component with More than Four Connections.