Dangers During Functional Checks, Commissioning And Operation - bar agturn PKT Series Operating Manual

WARNING
Uncontrolled start-ups!
There is a risk of injury if pneumatic rotary
actuators create a very high torque during
actuation or by spring force.
•
Secure the rotary actuator against any
unintentional start-up or unexpected
spinning.
• Work on the pneumatic rotary actua-
tors in a prudent way.
• In case of single-acting rotary actua-
tors (type GS), make sure that the ro-
tary actuator is in the home position
(relaxed springs) when disassembling.
CAUTION
Hand injuries!
When mounting the rotary actuator on
the valve spindle, the rotary actuator is
pushed to the connection point/flange of
the valve.
When disassembling the rotary actuator
or removing the rotary actuator from the
valve spindle, the parts can slip down.
There is danger of crushing the hands!
•
Carefully pull off the rotary actuator.
• Keep fingers and hands away from
the connection point.
NOTE
Material damage to valve spindle!
Material damage can occur if you use
built-on rotary actuators as levers.
• Do not use built-on actuators as le-
vers as they could damage the actua-
tor and the valve.
PKT-GD/GS-IM-DE-B-EN-09-19 Rev.0
2.7.2 Dangers during functional
checks, commissioning and
operation
DANGER
Bursting parts!
Escaping media!
There is danger to life if the maximum per-
missible pressure and temperature ranges
of the valve are insufficient for the operat-
ing conditions of the system. There is a
risk of injury and the risk of material dam-
age by wrongly selected materials.
In addition, there is a risk of damage to
the piping system.
• Only use the valves that are designed
for the operating conditions.
•
Make sure that the selected materi-
als of the parts of the valve coming in
contact with the medium are suitable
for the media used.
DANGER
Escaping medium!
There is a risk of death from es-
caping medium as a result of
leaks (scalding, hazardous sub-
stances).
• Protect yourself from thermal or
chemical burns.
•
Leave the danger area in case of leak-
age and keep third persons out of the
danger zone. Use appropriate barriers
or name supervisors.
13