1-4
EB|LTR|43_EN
May 2023 edition
Subject to technical changes
Safety instructions and safety measures
Danger of injury due to pressurised components and escaping
medium!
Ö Do not loosen pressurised components.
Danger of injury due to incorrect operation, use or installation
caused by illegible information on the butterfl y valve!
Over time, imprints or impressions on the valve can soil the
adhesives and signs or make them illegible for other reasons so
that dangers are not recognised and necessary operational
messages cannot be followed. Danger of injury can occur.
Ö Keep all relevant markings on the device legible at all times.
Ö Damaged, missing or faulty signs or adhesives must be
replaced immediately.
Functional impairment of the butterfl y valve due to oil leaking
from the hand pump!
Ö Observe the agreed and documented actuator/valve
alignment.
Dangers due to use of the butterfl 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 butterfl y valve must be secured against
unauthorised actuation.
Ö If a butterfl 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.
1.3 Notes regarding possible property
damage
Damage to the butterfl y valve due to contamination (e.g. solid
particles) in the pipes!
The plant operator is responsible for cleaning the pipes in the
plant.
Ö Rinse the pipes prior to commissioning.
Damage to the butterfl y valve due to unsuitable medium
properties!
The butterfl y valve is designed for a medium with certain
properties.
Ö Only use a medium that corresponds to the design criteria.
Damage to the butterfl y valve and leakage due to excessively
high or low tightening torques!
The butterfl y valve components must be tightened with specifi c
torques. Excessively tightened components are subject to
increased wear. Insuffi ciently tightened components can cause
leakage.
Ö Comply with the specifi ed tightening torques, see Chapter
“15.1.1 Tightening torques”
WARNING
NOTE
Damage to the butterfl y valve due to unsuitable tools!
Unsuitable tools can damage the valve.
Ö Suitable commercially available tools are needed to work on
the butterfl y valve, see Chapter “15.1.3 Tools”.
Damage to the butterfl y valve due to unsuitable lubricants!
The functionality of the butterfl y valve is ensured only by using a
certain lubricant. Unsuitable lubricants can corrode and damage
the surface.
Ö The butterfl y valve material requires suitable lubricants, see
Chapter “15.1.2 Lubricants”.
Medium contamination due to unsuitable lubricants and
contaminated tools and components!
Ö If required, for example for oxygen applications, keep the
butterfl y valve and utilised tools free from solvents and
greases.
Ö Only use suitable lubricant, see Chapter “15.1.2 Lubricant”
1.4 Warning notes on the device
Warning of moving parts.
Figure|1-1: Example of the warning information
Figure|1-2: Position on the valve
There is a risk of crushing due to the rotation of the shaft,
especially during fast rotation movements, when reaching into
the bracket as long as the pneumatic energy is connected to the
actuator, see
LW 10018, Paragraph 1.3.7.
NOTE
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