Datex-Ohmeda S/5 Avance Technical Reference Manual page 56

S/5 Avance
Pop-off valve
(Figure 2-29)
7
6 Pop-off flow
7 To scavenging
Figure 2-29 • Flow through the pop-off valve
2-30
The pop-off valve limits the pressure inside the bellows to 2.5 cm H
gas pressure. This normally occurs when the bellows reaches the top of the housing at
the end of exhalation.
Excess gas (7) vents to the scavenging system (6) through the pop-off valve and the
exhalation valve.
6
O above the drive
2
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