GEA VARIVENT C, Руководство пользователя

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2 Safety
2.1 Intended use
The double-seal valve type C is used for the mixproof separation of cleaning
media at flow path intersections in pipe systems.
The medium should preferably flow in the opening direction of the valve disk to
avoid pipe hammers when the valve is opened or closed.
If the valve is used in the opposite direction (valve closing), a damping cylinder
can be used to avoid pressure drops.
Do not install the valve in spring-opening, as this will open when there is a current
or air failure and leads to product mixing.
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 is borne solely by the operating
company.
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 Pressure equipment directive
The component is a piece of pressure equipment (without safety function) in the
sense of the pressure equipment directive 2014/68/EU. Classified according to
Annex II in category 1.
According to the scope of directive 2014/34/EC, article 1, paragraph 2, f, the
exception of the directive applies, due to conformity with the machine directive
2006/42/EU.
The nominal diameters smaller than DN 25 are subject to article 4, paragraph 3
of the Pressure Equipment Directive which specifies sound engineering practice.
Nominal diameters ≥ IPS 4“; DN 125 valid for the fluid group II.
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”.
Safety
Intended use
430BAL008331EN_4
18.02.2022 9