75
DIV
AL 600
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR
|
COMMISSIONING
|
REV. A
EN
Step
Action
18
Check that the downstream pressure, after an increment phase, does not exceed the closing pressure value
of the main regulator (1) (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
bleshooting" to clear the causes of the malfunctions.
•
Check the pressure referring to the downstream pressure gauge (5).
19
Using a foaming agent, check all the joints between shut-off valves (V1, V2) for proper sealing.
20
In case of external leaks, eliminate the leak points and repeat the procedure from step 1.
21
Slowly open the downstream shut-off valve V2 until the piping has been completely filled.
NOTICE!
•
If the pressure of the downstream pipeline is lower than the calibration pressure, partial
-
ly open the downstream shut-off valve (V2) so as to not to exceed the maximum flow rate
value of the installation.
•
Check the pressure referring to the downstream pressure gauge (5).
Tab. 8.45
Summary of Contents for Dival 600
Page 156: ...TM0023ENG...
