32
EB 8048-2/-3 EN
Operation
6
Operation
Immediately after completing mounting and
start-up (see section 5), the valve is ready for
use.
Type 3349‑1 and Type 3349‑7: crush haz
-
ard arising from moving parts (actuator and
plug stem).
Do not insert hands or fingers into the yoke
while the valve is in operation.
Risk of personal injury when the actuator
vents.
Wear eye protection when working in close
proximity to the control valve.
Risk of burn injuries due to hot or cold com
-
ponents and pipelines.
Depending on the process medium, valve
components, and pipelines may get very hot
or cold and cause burn injuries.
Wear protective clothing and safety gloves.
Risk of personal injury due to process
medium escaping under pressure.
−
Align the pipe elbow to ensure that any es
-
caping process medium does not hit oper
-
ating personnel.
−
Wear protective clothing (eye protection,
safety gloves) when working in close prox
-
imity to the control valve.
Risk of personal injury due to pressurized
components and process medium escaping
under pressure.
Do not loosen the screw of the test connec
-
tion while the valve is in operation.
Risk of impairment of aseptic or hygienic
service.
In the version with backup packing, the test
connection is sealed by a stopper. To guar
-
antee aseptic or hygienic service, connect a
leakage detection device to the test connec
-
tion.
Operation disturbed by a blocked actuator
or plug stem.
Do not impede the movement of the actuator
or plug stem by inserting objects into their
path.
Diaphragm damage through the use of an
incompressible medium.
Closing the valve when the shut‑off valves
upstream and downstream of the valve are
closed may lead to the diaphragm rupturing
WARNING
!
WARNING
!
WARNING
!
WARNING
!
WARNING
!
NOTICE
!
NOTICE
!
NOTICE
!
