Carleton's bleed valve is an integral part of aircraft crew oxygen systems, being connected on
the low-pressure distribution line. When actuated as part of pre-fight checks, it safely vents
oxygen from the low-pressure distribution line to demonstrate operational integrity of the
upstream gaseous oxygen supply. When the bleed valve is returned to the closed position,
the low-pressure lines should be recharged from the oxygen cylinder. However, if the hand valve
is in the closed position, the lines will not be replenished and the pre-flight check would fail.
Carleton's bleed valve assembly (part number B19820) has been qualified to Boeing
S475W002 and is currently installed as OEM equipment on Boeing 777 aircraft.
Features:
The bleed valve uses a direct acting solenoid to remotely vent the low-pressure distribution
line. The lightweight, low profile, in-line design simplifies installation on new or retrofit
systems. The valve is designed to be in the closed position when de-energized (normally
closed) to minimize overall power consumption.
The valve is available in two flow rate options. A 12-slpm flow rate is available for typical
low-pressure distribution line volumes and an 18-slpm flow rate option is available for systems
with larger line volumes.
