Piping and Instrumentation Diagram P&ID
Valves
| Acronym | Description | |
| PSV | Pressure Safety Valve | |
| PRV | Pressure Regulation Valve | |
| HCV | Hydraulic Control Valve | |
| XCV | Electricaly Control Valve | |
PCV |
Pneumatic Control Valve | |
| SOV | Shut Off Valve | |
| RO | Restriction Orifice |
Transducers / Field Sensors
| Acronym | Description |
| PT | Pressure Transducer |
| PDT | Pressure Differential Transducer |