Penlon Prima 451 - Page 13

Prima 451 – User Manual 7
Description
Pneumatic pressure
source
Gas cut-off valve
(normally open)
Flowmeter
Pressure gauge Reservoir Vaporizer
Pressure regulator Pneumatic on/off switch Oxygen flush valve
Pressure relief valve
Flow control valve
(variable)
Non-return valve
Audible alarm Filter
Power take-off point
(or test point)
Res
t ric t or Visual indicator
Prima 451
Three-gas machine with
cascade flowmeters,
left-hand O2 control,
two cylinders and two
vaporizers.
N2O Air
Gas Alarm Module
Flowmeter
Assembly
N2O
Air
O2
O2