PROCESS AND INSTRUMENTATION DIAGRAMS STANDARD DRAFTING SYMBOLS CHART SA WATER STANDARDS

This document is a standard drafting symbols chart for Piping and Instrumentation Diagrams (P&IDs) used by SA Water. It contains standard symbols for line types, self-actuated regulating valves, actuators, piping valves, fittings, general instrument functions, level sensors, and primary element flow rates.

Source: TS-112-Process-and-Instrument-Diagrams.pdf · page 16/27 · Drawing: 4003-00001-01 rev 1 · Components: 17 (1 equipment, 3 instrument, 13 valve)

Equipment (1)

Tag Description Details Connects to
SIC-M-1 Pump Driven by a Variable Speed Motor Pump driven by a variable speed motor with SIC controller representation —

Instruments (3)

Tag Function (ISA 5.1) Description Details Connects to
LE-xxxx-1 LE = Level Element (Ultrasonic) Ultrasonic Level Sensor Ultrasonic level sensor standard bubble —
LE-xxxx-2 LE = Level Element (Conductivity Probe) Conductivity Probe Level Sensor Conductivity probe standard bubble —
LE-xxxx-3 LE = Level Element (Ball Float) Ball Float Level Sensor Ball float standard bubble —

Valves (13)

Tag Description Details Connects to
PSV-xxx-1 Globe, Diaphragm Type Pressure Sustaining Valve Globe, diaphragm type pressure sustaining valve —
PCV-xxx-1 Globe, Diaphragm Type Pressure Regulating Valve Globe, diaphragm type pressure regulating valve —
PRV-xxx-1 Globe, Diaphragm Type Pressure Relief Valve Globe, diaphragm type pressure relief valve —
PSV-xxx-2 Spring Actuated Pressure Relief Valve Spring actuated pressure relief valve —
PSV-xxx-3 Spring Actuated 90 Degree Pressure Relief Valve Spring actuated 90 degree pressure relief valve —
HOCV-1 HOCV Symbol Hydraulically/Hand Operated Control Valve symbol with pressure feedback —
HOSV-1 HOSV Symbol Hydraulically/Hand Operated Solenoid Valve symbol with pressure feedback —
VALVE-ANGLE-1 Angle Valve Standard symbol for angle valve —
VALVE-BALL-1 Ball Valve Standard symbol for ball valve —
VALVE-BUTTERFLY-1 Butterfly Valve Standard symbol for butterfly valve —
VALVE-DIAPHRAGM-1 Diaphragm Valve Standard symbol for diaphragm valve —
VALVE-GATE-1 Gate Valve Standard symbol for gate valve —
VALVE-GLOBE-1 Globe Valve Standard symbol for globe valve —

Notes on drawing