PROCESS AND INSTRUMENTATION DIAGRAMS STANDARD DRAFTING SYMBOLS CHART SA WATER STANDARDS
This drawing is a legend/standard drafting symbols chart for SA Water process and instrumentation diagrams. It defines standard line types, self-actuated regulating valves, actuators, piping valves, fittings, general instrument functions, level sensors, and flow rate primary elements.
Source: TS-112-Process-and-Instrument-Diagrams.pdf · page 16/27 · Drawing: 4003-00001-01 rev 01 · Components: 8 (1 equipment, 3 instrument, 4 valve)
Equipment (1)
| Tag |
Description |
Details |
Connects to |
| SIC-XXX |
Pump driven by a variable speed motor |
Pump driven by a variable speed motor diagram standard block definition |
— |
Instruments (3)
| Tag |
Function (ISA 5.1) |
Description |
Details |
Connects to |
| LE-xxxx-1 |
LE = Level Element (Ultrasonic) |
Ultrasonic Level Sensor |
Ultrasonic level element symbol definition |
— |
| LE-xxxx-2 |
LE = Level Element (Conductivity Probe) |
Conductivity Probe Level Sensor |
Conductivity probe level element symbol definition |
— |
| LE-xxxx-3 |
LE = Level Element (Ball Float) |
Ball Float Level Sensor |
Ball float level element symbol definition |
— |
Valves (4)
| Tag |
Description |
Details |
Connects to |
| PSV-xxx-1 |
Globe, diaphragm type pressure sustaining valve |
Globe, diaphragm type pressure sustaining valve symbol definition |
— |
| PCV-xxx |
Globe, diaphragm type pressure regulating valve |
Globe, diaphragm type pressure regulating valve symbol definition |
— |
| PRV-xxx |
Globe, diaphragm type pressure relief valve |
Globe, diaphragm type pressure relief valve symbol definition |
— |
| PSV-xxx-2 |
Spring actuated pressure relief valve |
Spring actuated pressure relief valve symbol definition |
— |
Notes on drawing
- NOTE: THIS DRAWING SHOWS THE STANDARD SYMBOLS TO BE USED WHEN PRODUCING P & ID's FOR SA WATER AND ON ALL SA WATER PROJECTS. REFER TO TS112
- DO NOT SCALE PAPER PRINT