2
Safety
2.1
Intended use
The Mixproof Butterfly Valve is used for the separation of media in 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
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.
2.1.2
Pressure equipment directive
The Mixproof Butterfly Valves are pressure equipment (without safety function) in
the sense of 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.
2.1.3
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.
2.1.4
Improper operating conditions
The operational safety of the component can not be guaranteed under improper
operating conditions. Therefore avoid improper operating conditions.
The operation of the component is not permitted if:
•
Persons or objects are in the danger zone.
•
Safety devices are not working or were removed.
•
Malfunctions have been detected on the component.
Safety
Intended use
430BAL010337EN_7
29.07.2021
9