Safety measure
With locking holes
Push the handle and then turn,
2-
step
action prevents malfunction.
The supply/exhaust status of the air
flow can be verified at a glance in
the indicator window.
When in the exhaust position, the valve may
be padlock secured.
Prevents accidental start-ups while personnel
are cleaning or servicing equipment.
: Supply
: Exhaust
SUP
EXH
Step 1
Push down
the handle.
Turn the handle.
Step 2
Can prevent accidents caused by inadvertent air supply problems
VHS20-02-D
VHS30-03-D
VHS40-04-D
VHS50-10-D
Single Action
VHS20/30/40/50-D
Series
Double Action
VHS20W/30W/40W/50W-D
Series
Model
Sonic conductance C [dm
3
/s·bar] (IN
a
OUT)
Existing model
Existing model
Existing model
Existing model
Max.
88
%
increase
Shackle
diameter
*
Recommended lock shackle
diameter size: ø5 or more
For safety control, OSHA rule requires
energy sources for certain equipment
be turned off or disconnected and that
the device either be locked or labelled
with a warning tag.
Improved flow rate characteristics
5.8
14.1
26.7
53.3
3.3
8.3
14.2
31.9
With the indicator window
OSHA (Occupational Safety and Health Administration) standard compliant
Double action
79
%
increase
69
%
increase
88
%
increase
67
%
increase
1
