Intended Use; Improper Use - WIKA IV10 Mode D'emploi

3. Safety

3.2 Intended use

These valves are used for the separation of measuring instruments from
the process by means of shut-off, venting and pressure compensating
function(s) They are designed for use in applications with clean gaseous
EN
and liquid media that are not highly viscous or crystallising.
The product must only be used with media which are not harmful to
the wetted parts over the entire operating range of the instrument. Any
change in the state of the matter or any decomposition of unstable media
is not permitted.
Only use the product in applications that lie within its technical perfor-
mance limits (e.g. max. ambient temperature, material compatibility, ...).
→ For performance limits see chapter 9 "Specifications".
Improper handling or operation of the product outside of its technical
specifications requires the instrument to be taken out of service
immediately and inspected by an authorised service engineer.
These valves do not have their own potential ignition source. The
responsibility for the safe use in hazardous areas in accordance with
the accepted standards of technology rests with the operator.
For the reasons mentioned above, these valves are not marked and do
not have their own certification.
The product has been designed and built solely for the intended use
described here, and may only be used accordingly.
The manufacturer shall not be liable for claims of any type based on
operation contrary to the intended use.

3.3 Improper use

Improper use is defined as any application that exceeds the technical
performance limits or is not compatible with the materials.
WIKA operating instructions, shut-off valves and valve manifolds 7