Safety Devices; Slam-Shut Valve For Maximum Downstream Pressure - PIETRO FIORENTINI FE Series Manual

4.6 -

SAFETY DEVICES

To prevent the safety devices from tripping during normal service (when there are no faults at user level):
• do not exceed the maximum capacity values of the gearbox;
• do not feed the gearbox with pressures lower than the minimum values specified;
• do not purge of the downstream line with the gearbox installed.

4.6.1 - SLAM-SHUT VALVE FOR MAXIMUM DOWNSTREAM PRESSURE

NOTE!
If the valve trips, service will be interrupted.
The slam-shut valve for maximum downstream pressure (A) is a safety device that remains open in normal service
conditions and automatically and completely closes the gas flow when the maximum downstream pressure exceeds the
calibration values.
35
Fig. 4.3. Slam-shut valve for maximum pressure
LOW-PRESSURE GAS REGULATOR
A
| DESCRIPTION AND OPERATION
Use, maintenance and warning manual
| REV. 00
EN