2 Safety
2.1 Intended use
The butterfly valve is used to open and partially or fully shut off pipe sections.
Using the device for any other purpose is considered contrary to its designated
use.
Hint!
The manufacturer will not accept any liability for damage resulting
from any use of the valve which is not in accordance with the
designated use of the valve. The risk of such misuse lies entirely with
the operator of the facility.
2.1.1 Requirements for operation
The prerequisite for reliable and safe operation of the component is proper
transportation and storage as well as professional installation and assembly.
Operating the unit within the limits of its designated use also involves adhering to
the operating, inspection and maintenance instructions.
2.1.2 Flow speed
With slow flow speeds, existing solids holding space can potentially settle.
When the butterfly valve is closed quickly, this causes negative pressure on the
disk and in the area of the butterfly valve seal, as a result of a stall. With flow
speeds of ≥ 3.5 m/s, the valve may only be closed with significantly reduced
speed.
2.1.3 Pressure equipment directive
The valve is a piece of pressure equipment (without safety function) as defined in
the Pressure Equipment Directive: Directive 2014/68/EG. They are classified
according to Annex II, article 4, section 3. In the event of any deviations, GEA
Tuchenhagen GmbH will supply a specific Declaration of Conformity.
2.1.4 ATEX directive
In areas with an explosive atmosphere, only valves suitable for use in such areas
may be used.
Refer to and observe the additional operating instructions “ATEX version valves”.
For details regarding the marking of valves for potentially hazardous areas also
refer to the additional operating instructions “ATEX version valves”.
If these valves are used in areas with a potentially explosive atmosphere, you
must absolutely comply with directive 2014/34/EC with respect to all ignition
hazards.
2.1.5 Improper operating conditions
The operational safety of the component can not be guaranteed under improper
operating conditions. Therefore avoid improper operating conditions.
Safety
Intended use
430BAL009990EN_2
8 30.01.2018
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