GCE MediVitop Mode D'emploi page 5

D
G
H
F
B
EN
E
C
I
MARKING
DETAIL
A
J
A – INLET STEM
The combination valve is fitted to gas cylinder by a threaded inlet stem. The inlet stem can
be taper threaded or parallel threaded with different size depending on the cylinder size and
material.
B – FILLING PORT
A filling port is provided for filling the gas cylinder at a filling station, it has no function for pa-
tient use. It includes a non-return valve (NRV). The NRV means that special filling adaptors are
required to vent gas from the cylinder during the filling process (venting and/or vacuuming of
cylinders).
C – INLET PRESSURE INDICATOR
Inlet pressure indicator is intended to indicate amount of gas in the gas cylinder. The pressure
indicator is of an active type which means it indicates amount of gas in the gas cylinder whether
the shut-off valve is opened or closed.
D – COMBINATION CONTROL KNOB "SHUT-OFF VALVE & FLOW SELECTOR"
The valve is fitted with combination control knob for valve turning-on/off and setting of particu-
lar flows. The valve is turned on by anticlockwise rotation from OFF position to ON position.
Particular flows are set by further anticlockwise rotation. The shut-off valve is turned off by
clockwise rotation to OFF position.
E – RESIDUAL PRESSURE VALVE
Combination valve is equipped with a residual pres-
sure valve with function to retain a minimum positive
pressure in the gas cylinder to avoid contamination
of the cylinder content by atmospheric air. During
cylinder gas ventilation through the filling port the
residual pressure valve is by passed.
F, G – FLOW CONTROL HEAD "F" AND FLOW
OUTLET "G" (OPTION)
Combination valve is delivered with a flow control
head "F".This function is used to supply adjustable
gas flow rates (l/min) at atmospheric pressure direct-
ly to a patient through the flow outlet "G", for instance
Connecting the cannula
through a cannula or a facemask.
5/59