| Plumbing Piping Symbols |
 |
Cold water |
 |
Soft cold water |
 |
Hot water |
 |
Storm drain |
 |
Drain or waste above ground |
 |
Vent |
 |
Drain or waste below ground |
 |
Sprinkler main |
 |
Sprinkler branch and head |
 |
Compressed Air |
 |
Vacuum |
 |
Gas |
 |
Sewer – Cast Iron |
 |
Sewer – Clay Tile |
 |
Sewer – Plastic |
|
|
| Air Conditioning Piping Symbols |
 |
Condensed Water Supply |
 |
Condensed Water Supply Return |
 |
Chilled Water Supply |
 |
Chilled Water Supply Return |
 |
Refrigerant Liquid |
 |
Refrigerent Discharge |
 |
Make-up Water |
 |
Humidification Line |
| Heating Piping Symbols |
 |
Fuel Oil Supply |
 |
Hot Water Heating Supply |
 |
Hot Water Heating Return |
 |
Low-Pressure Steam |
 |
Medium-Pressure Steam |
 |
High-Pressure Steam |
|
