Coil
Relay coil
The operating element associated with a relay and its separately drawn contacts.
Schematic
Protection functions · 20
Electrically operated valve
Commands a valve through an electrical actuator or solenoid.
SLD / Schematic · 20
What it represents
Commands a valve through an electrical actuator or solenoid.
In a drafting package, connect this reference to the valve tag, actuator supply and command terminals. The associated drawing should trace the process action and valve position feedback; the number identifies the role and does not specify the terminal arrangement, ratings or operating settings.
How to read it
- Identify the valve tag, actuator supply and command terminals.
- Trace the process action and valve position feedback.
Information to show or reference
- Label the valve tag, actuator supply and command terminals.
- Cross-reference the process action and valve position feedback.
- Identify the device tag, manual revision and logic drawing that define this implementation.
A distinction that matters
An electrically operated valve is an actuator; pressure and flow supervision use separate sensor functions.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
ANSI device-number and suffix reference table
Public manufacturer number/name association. Drafting explanations are independently written.
IEEE C37.2-2022: power-system device function numbers
Normative device-number publication; exact edition wording and compliance require the licensed standard.
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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