ARI Armaturen EURO-WEDI EN - Manual (Page 3)

Rev. 0040104000 0410 Page 3
Operating and installation instructions
EURO-WEDI
®
4.0 Description
4.1 Scope of applications
Valves are used for „shut-off and/or throttling of media“.
The information complies to the Pressure Equipment Directive 97/23/EC.
It is the responsibility of the machine planner to ensure compliance.
The special markings on the valve must be taken into account.
Refer to the catalogue sheet to see which materials are used in standard versions.
Please contact the supplier or the manufacturer if you have any questions.
4.2 Operating principles
The valve is closed by turning the hand wheel clockwise (cone/seat function). Do not use
tools to increase the torque on the hand wheel. The valve spindle is sealed by an EDD
(flexible double seal system).
EURO-WEDI seals in the "open" state are protected against accidental closing by a
protective cap.
ATTENTION !
- Refer to the data sheet for applications, limits on use and possibilities.
- Certain media require or preclude the use of special materials.
- The valves are designed for standard operating conditions. If conditions exceed
these requirements, e.g. aggressive or abrasive media, the operator should
state the higher requirements when ordering.
- Valves made from grey cast iron are not authorised for use in systems subject
to TRD 110.