Operating Manual Valve and Position Identification Through Visual Aid

1. Operating Manual Valve
& Position Identification Through Visual Aid

2. Basic Operation
Quarter-turn for Hand Lever Rotation for Handwheel

3. Operator Positioning
Open position if lever axis parallel to run pipe axis.
Close position if lever axis perpendicular to run pipe axis.
Some visual indicator is not a common knowledge for
non-technical personnel but manufacturer will make sure
to design it so they could use some common sense.
Long side of flat head stem drive
is the lever axis
Lever axis parallel to run pipe axis

4. Operator Positioning
Open position if lever axis parallel to run pipe axis.
Close position if lever axis perpendicular to run pipe axis.
Some visual indicator is not a common knowledge for
non-technical personnel but manufacturer will make sure
to design it so they could use some common sense.
Groove line of diagonal square
head stem drive is the lever axis
Long side of diagonal corner snipped
stem drive is the lever axis

5. Operator Positioning
As per API 600, valve hadwheel
Some visual indicator is not a common knowledge for
non-technical personnel but manufacturer will make sure
to design it so they could use some common sense.
Groove line of diagona
head stem drive is the
Long side of diagonal corner snipped
stem drive is the lever axis