Product List
Sentry GS Excess Flow Valves
 
Description :
Sentry GS EFV for residential installation shuts off the gas flow when a predefined closing flow rate is reached. Factory adjusment (100%) provides a precise closing flow rate. The EFV remains in a stable, open position in the nominal flow range.

The EFV is installed downstream of the Emergency Control Valve (ECV). Sentry GS EFV is equipped with a by-pass orifice that allows the GS to reopen after the downstream line has been repaired and re-pressurized.

Sentry GS EFVs are certified according to:
  • New U.K. IGE/G/5 Gas in Flats and Multidwelling Buildings
  • Pressure Equipment Directive 97/23/EC
  • DVGW-VP 305-1

  • Specification :
    Ambient Temperature ......................................... -20°C to +60°C
    Product Code .................................................... GS20FH6LCS
    Thread Connection ............................................ 3/4" BS 746 thread with washer supplied
    Nominal Flow Rate VGas (natural gas d=0.6)..... 6m3/h
    Label ................................................................. green