Flowserve 5801 Notice De Montage Et Mode D'emploi page 15

1.3 Before installation, check the following items:
EN
18
• 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 rerouting of the piping!
• Was the piping flushed and cleaned prior to the installation?
Foreign particles can damage the valve and the actuator; this can be avoided by
fitting a suitable dirt trap.
• Was the protective coat removed from the 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 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, the valve will not work.
• Are the piping flanges equiaxial and parallel and does the
distance between pipe ends correspond to the valve length?
If not, excessive tension, valve malfunctions and leaks at the flange connections
may result.
• Is the piping routed correctly and is the valve free from
additional piping forces?
If not, leaks may develop and, depending on the situation, the valve may fail.
• Is the installation position of the valve with vertical valve
spindle achieved?
If not, increased wear, leaks and, depending on the situation, rubbing may
occur.