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Sintered filter: Small spherical particles of
bronze are pressed together under heat; this
creates a filter with particularly fine pores.
Filtre fritté : de petits grains de bronze sont
agglomérés par chauffage, ce qui permet
d'obtenir un filtre aux pores particulière-
ment fins.
Filtro sinterizzato: Piccole particelle sferiche
di bronzo vengono compresse ad alta tem-
peratura per formare un filtro a pori molto
sottili.
Flow: Outlet volume, indicated in liters per
minute.
Débit : volume délivré ; est exprimé en litres
par minute.
Portata: Quantitativo di prelievo, misurato
in litri al minuto.
6
2. Description
2.1 Purpose
The pressure reducers are used to supply med-
ical oxygen at reduced pressure for various
medical and therapeutic devices. For this pur-
pose the user connects them to a high-pres-
sure oxygen cylinder (up to 20 000 kPa =
200 bar cylinder pressure).
2.2 Function
During use, the oxygen from the cylinder pass-
es through the cylinder valve and connecting
union
into the body
2
er. The cylinder pressure (inlet pressure) can
be read on the contents gage
A filter screw with an integrated sintered filter
removes any impurities. Another sintered filter
reduces the flow of oxgen. The filter screw
is located in the opening of connecting union
. The second sintered filter is installed be-
2
tween connecting union
In the reduction stage the inlet pressure is re-
duced to the required operating pressure (out-
let pressure) of between 0.5 and 6.0 bar,
depending on the type. The principle used
here, with crater-type bore and spring-loaded
piston, ensures particularly constant pressure
despite variations in flow.
English
of the pressure reduc-
3
.
1
and body
.
2
3
10
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