FS LIQ
Liquid flow switch
A liquid-flow switch issues a contact state when a documented flow condition actuates it.
Schematic
IEEE / ANSI · FS LIQ
ANSI/IEEE liquid flow switch symbol
IEEE-oriented graphical reference for liquid flow switch, with public vendor evidence and drawing-reading notes.
IEEE / ANSI · Autodesk IEEE-oriented Miscellaneous Switches functional form
Autodesk explicitly publishes this block under IEEE Symbol Preview. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
Schematic · FS LIQ
What it represents
The flow-switch form associates an electrical contact with a documented flow condition. A cooling-system permissive or loss-of-flow alarm needs the process circuit and operate condition to be identified, rather than a bare contact label.
This is a convention-specific lookup based on the publisher's IEEE-labelled preview. The geometry here is independently drawn to explain the connection or operation; it is not a certified reproduction of the standard graphic.
How to read it
- State whether the contact indicates adequate flow or another specified condition.
- Read the selected library and the project legend together. A vendor block identifier is meaningful within its named library and is not a universal standard-symbol code.
Information to show or reference
- Name fluid circuit
- Record operation/reset conditions
- Reference signal destination
A distinction that matters
A flow switch reports a discrete condition while a flow transmitter reports a measured quantity.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Autodesk IEEE Symbol Preview — Miscellaneous Switches
Exact public IEEE-oriented category page verifying the component name and vendor block identifier.
IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams
Graphic-symbol standards context and official status; not a source of reproduced artwork.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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