Transcription of MISCELLANEOUS SYMBOLS: VALVE ACTUATORS
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INSTRUMENT SYMBOLS: TEMPERATURE ELEMENT (WITH WELL)MEASURING ELEMENTS:VARIABLE AREA FLOW METER (ROTAMETER)FLOW INDICATOR VALVED(ROTAMETER WITH ATTACHED VALVE )FLOW ORIFICEINLINE FLOW INSTRUMENTPRIMARY ELEMENT ORANNUNCIATOR CABINET ORINSTRUMENT MOUNTEDINSTRUMENT MOUNTED ATHARDWARE INTERLOCKAN AUXILIARY LOCATIONON BACK OF PANELPANEL MOUNTED INSTRUMENTLOCALLY MOUNTED INSTRUMENTRELAYCOMPUTER INPUT / OUTPUTSTATUS LIGHT, BEACONW = WHITE, R = RED, G = GREENPOWER RELAYSOFTWARE INTERLOCKRECORDERORIFICE,RESTRICTIONLIGH TINDICATEGLASSELEMENTALARMPASSIVEFUNCTIO NREADOUT ORINSTRUMENT SYMBOL LETTER IDENTIFICATION TABLESAFETYSPEEDSPOSITIONEVENT, STATEOR PRESENCETROUBLEWEIGHT FACTORWEIGHT ORFORCE (STRAIN)
4. safety solenoid valve (sy) is to trip the valve to its failure position. 5. remotely maintainable modulating control valves will utilize a pneumatic piston actuator. 6. actuator type (single acting, double acting, etc.) and solenoid type (3-way, 4-way, …
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