Samson EB 14b, Монтаж и эксплуатация

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1-3
EB 14b_EN
January 2022 edition
Subject to technical changes
Safety instructions and safety measures
Danger of injury due to pressurised components and escaping
medium!
Ö
Do not loosen the screw of an optional test connection while
the butter
fl y valve is pressurised.
Danger of crushing due to moving parts!
The butter fl y valve contains moving parts (actuator stem and
switching shaft) that can lead to crushing if reaching into it.
Ö
Do not reach into the yoke during operation.
Ö
When working on the butter fl y valve, interrupt and lock
pneumatic energy and the control signal.
Danger of injury during the switching operation if performing
test runs on butter
fl y valves not installed in the pipe!
Ö
Do not reach into the butter fl y valve. This can result in serious
injuries.
Danger of injury due to venting the actuator!
During operation, when regulating or opening and closing the
butter
fl y valve, the actuator can be ventilated.
Ö
Install the butter fl y valve such that the actuator does not venti-
late at eye level.
Ö
Use suitable silencers and plugs.
Ö
Wear eye protection when working near the valve.
Danger of injury due to preloaded springs!
Butter fl y valves that are equipped with preloaded actuator
springs are under mechanical tension.
Ö
Before working on the actuator, release the compression from
the preloaded springs, see the corresponding actuator docu-
mentation.
Danger of injury due to residual medium in the butter fl y valve!
When a butter fl y valve must be removed from a pipe, medium
can escape from the pipe or the butter fl y valve.
Ö
In the case of media that is harmful to health or hazardous,
the pipe must be completely emptied before a butter
fl y valve
can be removed.
Ö
Pay attention to the after fl ow of residuals or residuals that re-
main in dead spots.
Danger of injury due to the releasing of body screw connec-
tions!
If the body screw connections must be released, medium can es-
cape from the butter
fl y valve.
Ö
The screw connections on the connection of the body parts
may only be released or loosened after the butter
fl y valve has
been removed.
Ö
During reassembly, retighten the screws according to Chapter
“15.1.1.1 Adjustable stuf
fi ng box” with a torque wrench.
WARNING
Hazards due to incorrect butter fl y valve use!
The incorrect use of the butter fl y valve can represent a hazard for
the user and cause damage to the pipe system that are then no
longer the responsibility of PFEIFFER.
Ö
The material selected for the parts of the butter fl y valve that
come into contact with the media must be suitable for the uti-
lised media, pressures and temperatures.
Dangers due to use of the butter fl y valve as an end fi tting!
During normal operation, in particular with gaseous, hot and/or
hazardous media, spraying medium can cause hazards.
Ö
A blind fl ange must be assembled on the free connecting
pieces or the butter fl y valve must be secured against unau-
thorised actuation.
Ö
If a butter fl y valve is used as an end fi tting in a pressurised
line is opened, this may only be done with extreme caution
so that the escaping medium does not cause any damage.
Danger due to incorrect installation in case of use as an end
fi tting!
The seal is no longer guaranteed if the installation location is
incorrect.
Ö
Assemble the butter fl y valve such that the fastening ring
fastened on the valve body with cylinder screws or a tension
spring is pressed against the pipe
fl ange.
Figure | 1-1: Installation location as an end fi tting
WARNING