Handwheel operator
ISA 5.1-2009/2022 (final control element actuators) / PIP PIC001
Drawn as
A valve body with a stem and a short horizontal bar on top (the handwheel), a "T".
Meaning
Manual valve operated by a handwheel. The body below tells the valve type; the handwheel just confirms it is manual. Tag HV if it has one.
Variants
- Most legends omit the handwheel on manual valves altogether
- Hand-operated control valves are tagged HCV
Tags
HV