{"schemaVersion":1,"slug":"iec-gas-flow-actuation-qualifier","name":"Gas-flow actuation qualifier","kind":"symbol","abbreviation":"Q021404","aliases":["Gas-flow actuation qualifier symbol","Q021404","Gas-flow actuation qualifier IEC reference"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"A gas-flow qualifier identifies operation responding to gas movement.","description":["A gas-flow qualifier identifies operation responding to gas movement. Gas-flow actuation identifies the moving-gas condition used by the device. It is not equivalent to a static pressure condition, even where both participate in one ventilation or process sequence.","Document the monitored path and the resulting electrical input. A separate description is needed for any alarm delay, operating threshold or fan permissive."],"readingNotes":["Distinguish the gas process from any adjacent liquid-flow or pressure measurement.","Gas flow and gas pressure are different process quantities."],"drawingChecklist":["Identify the associated device, circuit or diagram boundary.","Distinguish the gas process from any adjacent liquid-flow or pressure measurement.","Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form."],"distinction":"Gas flow and gas pressure are different process quantities.","facts":[{"label":"Reference scope","value":"Specific public IEC-context family form"},{"label":"Publisher reference token","value":"Q021404 (Autodesk token; not a verified IEC database ID)"},{"label":"Information added","value":"Distinguish the gas process from any adjacent liquid-flow or pressure measurement."},{"label":"Preview","value":"Independent educational concept; consult the publisher and applicable standard for the exact graphic"}],"references":[{"sourceId":"iec-public-operating","relevance":"Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content."}],"related":["relay-coil","normally-open-contact"],"artwork":"edu-iec-gas-flow-actuation-qualifier","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","symbolVariant":{"convention":"IEC","form":"Gas-flow actuation qualifier","reference":"Autodesk IEC-60617 Symbol Preview — Operating-device and function qualifiers; vendor family reference, not certified IEC geometry or database identifier."},"url":"https://eloragrid.ai/symbols/iec-gas-flow-actuation-qualifier","illustration":{"url":"https://eloragrid.ai/library/illustrations/iec-gas-flow-actuation-qualifier.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"iec-public-operating","title":"Autodesk IEC-60617 preview: Operating-device and function qualifiers","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-3598E18D-9F8A-48CE-83D0-4CEBA0AE869C.htm","type":"cad-reference","scope":"Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.","checkedOn":"2026-10-14","reuse":"link-only","relevance":"Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content."}]}