Lever operator
ISA 5.1-2009/2022 (final control element actuators) / PIP PIC001
Drawn as
A ball-valve body with a short stem and a lever drawn as a slanted line from the top of the stem.
Meaning
Quarter-turn valve with a lever handle: small ball, plug and butterfly valves (typically 4" and below).
Variants
- Some legends draw the lever horizontally
- A padlock or "LO" beside the lever means locked open
Tags
HV