The FE515 is a two-stage device for low pressure equipped with integrated slam shut (OPSO), and optional excess flow valve (EFV) which enable UPSO and fire protection valve. It is particularly suitable for low pressure natural gas distribution networks for residential and commercial users.

The FE515 is suitable for Natural Gas or LPG.

This product is available on selected markets only. For further details, please contact your closest Pietro Fiorentini representative.


  • Accuracy class AC: 10
  • Connections: Inlet G 1/2″ and outlet G 1″ or G 3/4″ according to ISO 228/1
  • Lock-up pressure class SG: 20
  • Safety accuracy class AG: 10
  • Design pressure: 5.15 barg
  • Inlet pressure: from 0.1 to 5.15 barg
  • Ambient temperature: standard version from -20°C to +60°C, extended temperature version from -30°C to 60°C, arctic version from -40°C to 60°C
  • Minimum differential pressure: 0.15 bar FE515-6, 0.2 bar FE515-10, 0.3 bar FE515-25
  • Range of downstream pressure:
    • Wds from 13 to 180 mbar for BP, from 180 to 500 mbar for TR
    • Wdso from 35 to 299 mbar for BP, from 300 to 800 mbar for TR
  • Overflow trip: 110-170% of nominal flow rate
Scroll to top
Please turn to portrait for a better experience

Please turn to portrait
for a better experience