Hamilton Sundstrand Company Gas Fuel Metering Valve HFG2.0 User Manual
8 HFG2.0
USER
GUIDE
Vent Port
The gas leakage rate through the vent port is less than 200 cm
3
/hr (air or
N
2
as test flow). The vent port features a 1/8-NPT fitting. See Figure 1-4.
Consult local installation codes to determine whether and how to connect
this port.
this port.
Figure 1-3. HFG2.0 Dimensions, 3-Piece Housing