Flowserve PMV P3 - Manual (Page 17)

17
Flapper nozzle
The flapper valve holder can be mounted
in two different ways, depending on the
required function. This is described on page
11. Change the function or replace the O-
rings as follows:
• Unscrew the screws C and D and remove
the holder E. Check both the O-rings and
replace them if necessary.
• Replace the holder in the desired position
and tighten the screws.
Gain screw
The sleeve F can be unscrewed to replace
the O-ring G. Let the adjusting screw remain
in the sleeve.
Integral I/P converter
The I/P converter can be removed if it is
necessary to replace it, to replace the O-rings,
or to rebuild the positioner.
• First unscrew the two screws H that hold
the terminal block. Release part of the rubber
seal so that the cables to the terminal block
can be pulled free from the grommet and the
terminal block can be pulled through.
• Remove the I/P unit with its cable and ter-
minal block.
• Replace the O-rings if necessary and refit
the I/P unit or the rebuilding parts.
F
G
H
C
E
D