Safety; Intended Use; Requirements For Operation; Pressure Equipment Directive - GEA VARIVENT Operating Instructions Manual

Safety

Intended use

2 Safety
2.1 Intended use
The control valve is used to control flow rates and pressures in automated
process plants.
The medium should preferably flow in the opening direction of the valve disk to
avoid pipe hammers when the valve is opened or closed.
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 valve 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

If the control valves are used in areas with a potentially explosive atmosphere,
you must absolutely comply with directive 2014/34/EU with respect to all ignition
hazards.
The supplementary ATEX operating instructions for VARIVENT valves must be
observed. For details regarding the marking of valves for potentially explosive
areas also refer to the additional ATEX operating instructions for VARIVENT
valves.
If used in explosion-proof areas, the regulations laid down in the European
standards DIN EN 60079-0 and DIN EN 60079-11 must be observed.
2.1.4

Improper operating conditions

8
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.
430BAL011665EN_5
21.03.2023