Commonly used P&ID (Piping and Instrumentation Diagram) symbols for heat transfer equipments. Note that they may differ slightly from one project to another.
| Air cooler |  |
| Generic heat exchanger |  {adinserter 1} |
| Generic heat exchanger |  |
| Plate and frame heat exchanger |  |
| Double pipe U tube heat exchanger |  {adinserter 1} |
| Kettle type heat exchanger |  |
| Shell & Tube Heat Exchanger |  |
Valve Type
Valve P&ID Symbols
Application
Gate Valve
Used when a straight flow of fluid and minimum restriction is desired
Normally Closed Gate...
Disadvantage:
- Low pressure limitations
- Lack of cleanliness
- Low shut off
Ball valves
When to be used?
Functionality
To signify an open valve...
... Polytropic compressor head equation
This head when multiplied by the volumetric flow of gas (Q) gives the compressor power...
Schoepentoeters in Columns
For columns, it is important the channeling of fluid, especially through the packed beds, leads to reduced gas liquid contact...
