PRESSURE P : PRESSURE PI : PRESSURE INDICATOR PG : PRESSURE GAUGE PCV : PRESSURE CONTROL VALVE PT : PRESSURE TRANSMITTER PIT : PRESSURE INDICATING TRANSMITTER PIC : PRESSURE INDICATING CONTROLLER PDT : PRESSURE DIFFERENTIAL TRANSMITTER PRV : PRESSURE REDUCING VALVE PSV : PRESSURE SAFETY VALVE PS : PRESSURE SWITCH PSH : PRESSURE SWITCH HIGH PSL : PRESSURE SWITCH LOW PSHH : PRESSURE SWITCH HIGH HIGH PSLL : PRESSURE SWITCH LOW LOW PDS : PRESSURE DIFFERENTIAL SWITCH PDSH : PRESSURE DIFFERENTIAL SWITCH HIGH PDSL : PRESSURE DIFFERENTIAL SWITCH LOW PA : PRESSURE ALARM
TEMPERATURE T : TEMPERATURE TI : TEMPERATURE INDICATOR TW : THERMOWELL TM : THERMOMETER TE : TEMPERATURE ELEMENT RTD : RESISTANCE TEMPERATURE DETECTOR T/C : THERMOCOUPLE TT : TEMPERATURE TRANSMITTER TIC : TEMPERATURE INDICATING CONTROLLER TRC : TEMPERATURE RECORDER CONTROLLER TCV : TEMPERATURE CONTROL VALVE TS : TEMPERATURE SWITCH TSH : TEMPERATURE SWITCH HIGH TSL : TEMPERATURE SWITCH LOW TA : TEMPERATURE ALARM
FLOW F : FLOW FI : FLOW INDICATOR FG : FLOW GLASS / FLOW GAUGE FE : FLOW ELEMENT FIT : FLOW INDICATING TRANSMITTER FCV : FLOW CONTROL VALVE FIC : FLOW INDICATING CONTROLLER FS : FLOW SWITCH FY : FLOW CONVERTER FA : FLOW ALARM FR : FLOW RECORDER FRC : FLOW RECORDING CONTROLLER LEVEL L : LEVEL LI : LEVEL INDICATOR LG : LEVEL GAUGE LIT : LEVEL INDICATING TRANSMITTER LCV : LEVEL CONTROL VALVE LDT : LEVEL DISPLACER TRANSMITTER LIC : LEVEL INDICATING CONTROLLER LRC : LEVEL RECORDING CONTROLLER LS : LEVEL SWITCH LSH : LEVEL SWITCH HIGH LSL : LEVEL SWITCH LOW LA : LEVEL ALARM RLT : RADAR LEVEL TRANSMITTER