PIETRO FIORENTINI Dival 600, User Manual

Page: 74 / 156

74
DIV
AL 600
EN
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR | COMMISSIONING | REV. A
A
Commissioning of DIVAL 600 reg regulator with in-line monitor function
Step Action
10
Slowly close the bleed cock (6).
11
Check that the downstream pressure, after an increment phase, does not exceed the closing pressure value
of the regulator with in-line monitor function (2) (refer to the SG value displayed on the plate, see par. "2.8 -
Nameplates applied").
NOTICE!
• If the downstream pressure exceeds the closing pressure value, refer to chapter "10 - Trou-
bleshooting" to clear the causes of the malfunctions.
• Check the pressure referring to the downstream pressure gauge (5).
12
Partially open the bleed cock (6).
13
Discharge the regulation spring of the main regulator (1) or disconnect the external pressure source from the
chamber (A).
14
Check that the regulator with in-line monitor function (2) is fully open (100%).
NOTICE!
The regulator with in-line monitor function (2) is fully open, when the pressure indicated on the
intermediate pressure gauge (4) is the same as the upstream pressure gauge (8).
15
Check that the calibration pressure of the main regulator (1) is as pre-established by referring to the pressure
value indicated on the downstream pressure gauge (5).
16
a - FOR INITIAL COMMISSIONING OF THE REGULATION LINE
If the pressure downstream (Pd) is not at the required calibration value, proceed as follows:
• downstream pressure value (Pd) lower than required calibration value: load the setting spring by turning
the adjustment ring nut clockwise (3)
• downstream pressure value (Pd) higher than required calibration value: load the setting spring by turning
the adjustment ring nut anti-clockwise (3)
b - AFTER MAINTENANCE OF THE REGULATION LINE
• load the setting spring (328.1) and increase the pressure value of the main regulator (1) by turning the
adjustment ring nut clockwise (3)
17
Slowly close the bleed cock (6).