PIETRO FIORENTINI APERFLUX 101, Technical Manual

Page: 15 / 37

Technical manual MT 208-E 14
19) If pumping phenomena arise in normal working conditions, it is
necessary to repeat the operations in point 15 so as
to
readjust the setting, increasing the opening of the AR100
valve. If, on the other hand, there is an excessive reduction of
the regulated pressure with an increase in flow, repeat the above
operations with a smaller opening of the AR100 valve.
20) It is reccomended to check that the flow of the line stops when
the slam shut is tripped manually.
Tab 6
Setting of on-line apparatuses consisting of regulators
APERFLUX 101+ M Slam-shut + Relief valves
Reg. set-point
(Pds) bar
Monitor
Set-point
Accelerator
Set-point
Relief valve
Set point
Slam-shut Max
Set point
Slam-shut Min
Set point
0.8< Pds ≤ 2.1 Pds x 1.1 Pds x 1.2 Pds x 1.3 Pds x 1.5 Pds - 0.3 bar
2.1< Pds ≤ 5 Pds x 1.1 Pds x 1.2 Pds x 1.3 Pds x 1.4 Pds - 0.5 bar
5< Pds ≤ 25 Pds x 1.05 Pds x 1.1 Pds x 1.15 Pds x 1.3 Pds - 3 bar
25< Pds ≤ 74 Pds x 1.03 Pds x 1.06 Pds x 1.15 Pds x 1.3 Pds - 5 bar
Rest position
(A and B in communication)
Control position
(A and C in comunication)
Safety Device
Environment with the pressure to keep under control
Chamber with
controlled pressure
Safety Device
Chamber with controlled pressure
Environment with the pressure to keep
under control
fig. 22
fig. 23
fig. 24
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