3 Components and functions
34 SA-112-0106V1.0-WEM-GB © F. Stephan GmbH
The valve block accommodates solenoids V1 and V2 and connects them
with the connection fitting for the patient part.
Fig. 27: Valve block
1 solenoid V1 2 solenoid V2
In the open mode (constant flow), the fresh gas reservoir has no function.
Solenoid V2 remains closed permanently.
Solenoid V1 remains open permanently.
There is a constant flow of fresh gas to the patient part.
Fig. 28: Gas flow in open mode
In the semi-open mode (constant volume), solenoid V2 remains open
permanently.
Valve bloc
1
2
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