Installation And Connection; Installing The Butterfly Valve - GEM 410 Installation, Operating And Maintenance Instructions

11

Installation and connection

DANGER
Danger - maiming!
® Danger of severe injuries!
Depressurize the plant
G
and disconnect the control
medium line(s) to the butterfl y
valve before performing any
work on the butterfl y valve.
Prior to installation:
Ensure that seal material is appropriate
G
and compatible to handle the working
medium.
See chapter 6 "Technical data".
11.1

Installing the butterfly valve

WARNING
The equipment is subject to pressure!
Risk of severe injury or death!
®
Only work on depressurized plant.
G
WARNING
Corrosive chemicals!
Risk of caustic burns!
®
Wear appropriate protective
G
gear when installing.
CAUTION
Hot plant components!
Risk of burns!
®
Only work on plant that has
G
cooled down.
CAUTION
Never use the butterfl y valve as a step
or an aid for climbing!
® This entails the risk of slipping-off or
damaging the butterfl y valve.
CAUTION
Do not exceed the maximum
permissible pressure!
® Take precautionary measures to
avoid possible pressure surges
(water hammer).
Installation work must only be performed
G
by trained personnel.
Use appropriate protective gear as
G
specifi ed in plant operator's guidelines.
Installation location:
Do not apply external force to the
G
butterfl y valve.
Choose the installation location so that
G
the butterfl y valve cannot be used as a
foothold (climbing aid).
Lay the pipeline so that the butterfl y
G
valve body is protected against
transverse and bending forces, and
also vibrations and tension.
Only mount the butterfl y valve between
G
matching aligned pipes.
Mounting position: if possible, the

actuator should be at the top.
Direction of the working medium:

optional.
Installation:
1. Ensure the suitability of the butterfl y valve
for each respective use. The butterfl y
valve must be appropriate for the piping
system operating conditions (medium,
medium concentration, temperature and
pressure) and the prevailing ambient
conditions. Check the technical data of
the butterfl y valve and the materials.
2. Shut off plant or plant component.
3. Secure against recommissioning.
4. Depressurize the plant or plant
component.
5. Completely drain the plant (or plant
component) and let it cool down until
the temperature is below the media
vaporization temperature and scalding
can be ruled out.
6. Correctly decontaminate, rinse and
ventilate the plant or plant component.
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CAUTION
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