Commissioning The Regulator With Automatic Reset - PIETRO FIORENTINI FE Series Manual

7.4.2 - COMMISSIONING THE REGULATOR WITH AUTOMATIC RESET

To commission the regulator (A) with automatic reset, proceed as indicated in Tab. 7.38.:
Step Action
1 Slowly open the shut-off valve upstream of the regulator (A) to feed it.
2 Unscrew the protection cap (B) of the reset knob (C).
3
Engage the knob (C) with the cap (B) through the special built-in hook.
Slowly pull the knob (C) with the cap (B) until the slam-shut device engages (the knob must not remain inside
the lid (D) of the slam-shut valve).
4
NOTE!
The greater the resistance encountered when pulling the knob (C), the higher the pressure up-
stream of the gearbox (A).
5 Release the reset knob (C).
6 Put the protection cap (B) back in place.
Wait for the lock-up device to automatically reset due to excess flow. The reset time is proportional to the
volume downstream of the gearbox.
7
NOTE!
Should the device not reset, make sure there are no leaks downstream of the regulator.
Once reset (Step 7), check that the slam-shut valve for maximum downstream pressure remains triggered.
NOTE!
8
The slam-shut valve for maximum downstream pressure is triggered if the knob (C) is visible in
the transparent area of the protection cap (B).
LOW-PRESSURE GAS REGULATOR
EN
Use, maintenance and warning manual
A
Fig. 7.13. Commissioning with automatic reset
| COMMISSIONING |
B
C
C
B
D
REV. 00
Armato
Intervenuto
60
Tab. 7.38.