Hygienic preparation 41
6.3 Hose system
Caution! Only reusable hose system WM 22520 (scope of
supply) is suitable for the hygienic preparation de-
scribed here. Do
not subject disposable hose systems
WM 28110 (2 m) and WM 28188 (3 m) available as
accessories to hygiene preparation. Replace it with a
new one.
Ventilation hose
1. Take the ventilation tube and the pressure
gauge hose off both connection ports.
Warning! Take hold of the hoses at the end as
shown in the drawing, otherwise the hoses may
be damaged or pulled off. Seal both ends of the
pressure gauge hose.
2. Carry out sterilization/disinfection.
3. Make sure all internal and external surfaces are
thoroughly wetted and free from bubbles. Wait
for the full disinfection time to elapse.
4. Rinse the ventilation tube thoroughly inside and
out with distilled water.
5. Dry the components thoroughly.
6. For reassembling see “4.4 Ventilation hose” on
page 22.
Pressure gauge tube
To disinfect the pressure gauge tube of the ventila-
tion tube, proceed as follows:
1. Connect one end of the pressure gauge tube to
a sterile disposable 20-ml syringe.
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