PROCESS AND INSTRUMENTATION DIAGRAMS STANDARD DRAWING SYMBOLS CHART SA WATER STANDARDS
This document is a standard legend sheet for SA Water's Process and Instrumentation Diagrams (P&IDs). It defines standard symbology for line types, self-actuated regulating valves, actuators, piping valves, fittings, general instrument functions, level sensors, primary flow elements, and piping hazardous classification levels to AS4343.
Source: TS-112-Process-and-Instrument-Diagrams.pdf · page 16/27 · Drawing: 4003-00001-01 rev 1 · Components: 83 (1 equipment, 25 instrument, 29 valve, 28 other)
Equipment (1)
| Tag | Description | Details | Connects to |
|---|---|---|---|
| symbol-pump-variable-speed | Pump Driven by a Variable Speed Motor | Includes SIC, motor, and pump | — |
Instruments (25)
| Tag | Function (ISA 5.1) | Description | Details | Connects to |
|---|---|---|---|---|
| plot-light | — | PLOT LIGHT | — | — |
| pressure-setting-balloon-right | — | PRESSURE SETTING BALLOON (RIGHT) | — | — |
| pressure-setting-balloon-left | — | PRESSURE SETTING BALLOON (LEFT) | — | — |
| undefined-interlock-logic | — | UNDEFINED INTERLOCK LOGIC | — | — |
| flow-element-orifice-type-1 | FE | Flow Element, Orifice Type | FLOW ELEMENT, ORIFICE TYPE | — |
| flume-1 | — | Flume | FLUME | — |
| flow-element-code-balloon-1 | FE XXXX | Flow Element Code Balloon | FLOW ELEMENT CODE BALLOON (To be associated with Element) | — |
| symbol-pressure-setting-balloon-right | — | Pressure Setting Balloon (Right) | — | — |
| symbol-pressure-setting-balloon-left | — | Pressure Setting Balloon (Left) | — | — |
| symbol-undefined-interlock-logic | — | Undefined Interlock Logic | — | — |
| symbol-le-ultrasonic | LE = Level Element | Level Element (Ultrasonic) | — | — |
| symbol-le-conductivity | LE = Level Element | Level Element (Conductivity Probe) | — | — |
| symbol-le-ball-float | LE = Level Element | Level Element (Ball Float) | — | — |
| flow-element-orifice | — | Flow Element, Orifice Type | FLOW ELEMENT, ORIFICE TYPE | — |
| flume | — | Flume | FLUME | — |
| FE-xxxx | FE = Flow Element | Flow Element Code Balloon | FLOW ELEMENT CODE BALLOON (To be associated with Element) | — |
| magnetic-flowmeter | — | Magnetic Flowmeter | MAGNETIC FLOWMETER | — |
| pitot-tube-annubar | — | Pitot Tube or Annubar | PITOT TUBE or ANNUBAR | — |
| positive-displacement-flowmeter | — | Positive Displacement Flowmeter | POSITIVE DISPLACEMENT FLOWMETER | — |
| thermal-mass-flowmeter | — | Thermal Mass Flowmeter | THERMAL MASS FLOWMETER | — |
| turbine-flowmeter | — | Turbine Flowmeter | TURBINE FLOWMETER | — |
| ultrasonic-flowmeter | — | Ultrasonic Flowmeter | ULTRASONIC FLOWMETER | — |
| variable-area-flow-indicator | — | Variable Area Flow Indicator | VARIABLE AREA FLOW INDICATOR | — |
| vortex-meter | — | Vortex Meter | VORTEX METER | — |
| weir | — | Weir | WEIR | — |
Valves (29)
| Tag | Description | Details | Connects to |
|---|---|---|---|
| globe-diaphragm-sustaining-valve | GLOBE, DIAPHRAGM TYPE PRESSURE SUSTAINING VALVE | — | — |
| globe-diaphragm-regulating-valve | GLOBE, DIAPHRAGM TYPE PRESSURE REGULATING VALVE | — | — |
| globe-diaphragm-relief-valve | GLOBE, DIAPHRAGM TYPE PRESSURE RELIEF VALVE | — | — |
| spring-actuated-relief-valve | SPRING ACTUATED PRESSURE RELIEF VALVE | — | — |
| spring-actuated-90-degree-relief-valve | SPRING ACTUATED 90 DEGREE PRESSURE RELIEF VALVE | — | — |
| hocv | HOCV | — | — |
| hosv | HOSV | — | — |
| valve-angle-1 | Valve, Angle | VALVE, ANGLE | — |
| valve-ball-1 | Valve, Ball | VALVE, BALL | — |
| valve-butterfly-1 | Valve, Butterfly | VALVE, BUTTERFLY | — |
| valve-diaphragm-1 | Valve, Diaphragm | VALVE, DIAPHRAGM | — |
| valve-fire-plug-1 | Valve, Fire Plug | VALVE, FIRE PLUG | — |
| valve-gas-release-1 | Valve, Gas Release | VALVE, GAS RELEASE | — |
| valve-gate-1 | Valve, Gate | VALVE, GATE | — |
| valve-general-1 | Valve, General | VALVE, GENERAL | — |
| valve-globe-1 | Valve, Globe | VALVE, GLOBE | — |
| hydrant-1 | Hydrant | HYDRANT | — |
| valve-knife-gate-1 | Valve, Knife Gate | VALVE, KNIFE GATE | — |
| valve-needle-1 | Valve, Needle | VALVE, NEEDLE | — |
| valve-non-return-1 | Valve, Non Return | VALVE, NON RETURN | — |
| valve-backflow-prevention-device-1 | Valve, Backflow Prevention Device | VALVE, BACKFLOW PREVENTION DEVICE | — |
| penstock-1 | Penstock | PENSTOCK | — |
| valve-pinch-1 | Valve, Pinch | VALVE, PINCH | — |
| valve-plug-1 | Valve, Plug | VALVE, PLUG | — |
| valve-pinch | Valve, Pinch | VALVE, PINCH | — |
| valve-plug | Valve, Plug | VALVE, PLUG | — |
| stop-plate | Stop Plate | STOP PLATE | — |
| stoplog | Stoplog | STOPLOG | — |
| valve-3-way | Valve, 3 Way | VALVE, 3 WAY | — |
Other (28)
| Tag | Description | Details | Connects to |
|---|---|---|---|
| cap | CAP | — | — |
| blind-flange | BLIND FLANGE | — | — |
| flange-joint | FLANGE JOINT | — | — |
| flexible-coupling | FLEXIBLE COUPLING | — | — |
| flexible-hose | FLEXIBLE HOSE | — | — |
| hose-coupling | HOSE COUPLING | — | — |
| nozzle | NOZZLE | — | — |
| reducer-concentric | REDUCER CONCENTRIC | — | — |
| diaphragm-actuator-1 | Diaphragm Actuator | DIAPHRAGM | — |
| diaphragm-pressure-balanced-actuator-1 | Diaphragm, Pressure Balanced Actuator | DIAPHRAGM, PRESSURE BALANCED | — |
| float-actuator-1 | Float Actuator | FLOAT | — |
| hand-actuated-or-handwheel-1 | Hand Actuated or Handwheel Actuator | HAND ACTUATED OR HANDWHEEL | — |
| piston-actuator-1 | Piston Actuator | PISTON | — |
| piston-actuator-with-positioner-or-position-switches-1 | Piston Actuator with Positioner or Position Switches | PISTON ACTUATOR WITH POSITIONER OR POSITION SWITCHES | — |
| positioner-shown-on-actuator-1 | Positioner Shown on Actuator | POSITIONER SHOWN ON ACTUATOR. | — |
| positioner-tag-1 | Positioner Tag | POSITIONER TAG | — |
| rotary-motor-1 | Rotary Motor Actuator | ROTARY MOTOR (MAY BE ELECTRIC HYDRAULIC or PNEUMATIC) | — |
| solenoid-actuator-1 | Solenoid Actuator | SOLENOID | — |
| spring-for-pressure-relief-or-safety-valve-only-1 | Spring for Pressure Relief or Safety Valve Only | SPRING - FOR PRESSURE RELIEF OR SAFETY VALVE ONLY | — |
| weight-actuator-1 | Weight Actuator | WEIGHT | — |
| symbol-flexible-coupling | Flexible Coupling | — | — |
| symbol-nozzle | Nozzle | — | — |
| symbol-reducer-concentric | Reducer, Concentric | — | — |
| symbol-reducer-flat-bottom | Reducer, Flat Bottom | — | — |
| symbol-reducer-flat-top | Reducer, Flat Top | — | — |
| symbol-haz-level-b | Haz Level B | (AVERAGE), eg. CHLORINE, CAUSTIC | — |
| symbol-haz-level-c | Haz Level C | (LOW), eg. POLYMER, HIGH PRESSURE | — |
| symbol-haz-level-e | Haz Level E | (NEGLIGIBLE), eg. WATER | — |
Notes on drawing
- PIPING HAZARDOUS CLASSIFICATION LEVELS TO AS4343
- HAZ LEVEL A (AVERAGE) eg. CHLORINE, CAUSTIC
- HAZ LEVEL B (LOW) eg. POLYMER, HIGH PRESSURE
- HAZ LEVEL C (NEGLIGIBLE) eg. WATER
- NOTE: THIS DRAWING SHOWS THE STANDARD SYMBOLS TO BE USED WHEN PRODUCING P & ID's FOR SA WATER AND IN ALL SA WATER PROJECTS.
- REFER TO TS112.
- DO NOT SCALE PAPER PRINT