Safety Valve; Auxiliary Air Valve - Dräger Medical Fabius GS Technical & Service Manual

Function description
8.1

Safety valve

8.2

Auxiliary air valve

38
The top of the ventilator assembly (patient system) contains two valves:
If the pressure limit control fails, the ventilator's safety valve limits the gas
pressure. This valve is set to open at approximately 75 cmH2O (mbar).
Figure 29 Sectional view of the safety valve, for legend see
Table 11 Legend to
No.
1 Screw
2 Spring
3 Washer
4 Valve disc
The auxiliary air valve allows the patient to spontaneously breathe ambient
air should the medical gas supply and/or Fabius GS fail. The opening pres-
sure of this valve is listed in the table below.
Table 12 Threshold
Software version
US units with SW >1.20
US units with SW 1.20
Non-US units with SW 1.20
Non-US units with >SW 1.20
Figure 29
Name
Fabius GS
Table 11
Threshold
-8 mbar (cmH20)
-3 mbar (cmH20)
-3 mbar (cmH20)
-8 mbar (cmH20)
5330.500