Flowserve IOM Control Valves - Manual (Page 18)

18
EN
Rating plate
As the information on rating plates reflects the special features
of the type they describe, their appearance may differ. The rating
plate contains the following data:
Kennzeichnung / Tag No. Fabrikations Nr. / Serial No.
Typ / Type Antrieb Typ / Actuator Type
DN / PN Hub / Stroke
Sitz ø / Seat ø Zuluft min. max. / Supply min. max.
Kvs / Cv Federlaufbereich / Spring Range
Kegel / Plug Sicherheitsstellung / Failure Position
Kennlinie / Characteristic Umgegungstemp. / Ambient Temp.
Mat. Gehäuse / Mat. Body ∆p Antrieb / ∆p Actuator
Innenteile / Trim Einbaulage / Arrangement
Packung / Packing Betriebstemperatur / Working Temperature
Betriebsdruck / Working Pressure
1.3 Before installation, check the following items:
• The operator is required to carefully check the suitability of the
control valve for its intended use in the system in advance.
Any use not in compliance with the regulations/specifications can lead to serious
damage to the control valve or may lead to failure of the facility!
• Does the nominal/operation data on the rating plate match
the operational data of the facility?
A mismatch may cause considerable damage to the valves.
• At the point of installation, is there enough space to fit and
remove the valve?
A lack of space can cause considerable problems and in the some cases
necessitate expensive rerouting of the piping!
• Was the piping flushed and cleaned prior to the installation?
Foreign particles can damage the control valve and accessories; this can be
avoided by fitting a suitable dirt trap.
• Was the protective coat removed from the control valve, and
was the valve cleaned?
The preservative (Mipa Abziehhaut blue) and the spray (Castrol Safecoat
DW 32) can contaminate the operating medium and must be removed before
installation.
Unsuitable cleaning agents that attack the PTFE and graphite sealing sets
can cause damage and leaks. Pay particular attention to the relevant chemical
resistance lists.
Remove covers.
• Does the direction of flow arrow on the housing coincide with
the direction of flow of the medium?
If not, critical operating conditions can result that may damage the control valve,
as they are not designed to cope with this situation.