Woodward Large Electric Sonic Valve II, Installation And Operation Manual, Page: 49 / 66

Manual 35076 LESV II
Woodward 47
Fuel Overboard Vent Port
There is a fuel overboard vent port that must be vented to a safe location. In normal operation, this vent
should have very low leakage. However, if excessive leakage is detected from this vent port, contact a
Woodward representative for assistance.
Never plug the fuel overboard vent port, which could cause the valve
to malfunction or to operate improperly.
Fuel Overboard Vent Port Annual Inspections
Pressurize the valve section of the assembly to a pressure of 345 kPa (50 psig) and perform the following
inspections:

Inspect external sealing surfaces for leakage using leak detect fluid (no leakage is permitted). These
locations include the inlet and discharge flange connections, as well as the pilot sleeve/valve body
interface.

Inspect for excessive overboard vent leakage (100 cm³/min maximum / 6.1 in³/min) from the Fuel
Overboard Vent Port.
Released