83
ENGLISH
When the diver exhales, the pressure inside the regulator’ s case
increases, opening the exhaust valve. This has been fully redesi-
gned and shows a larger diameter as well as a specially angled
conical shape, allowing air to flow outside. The exhaust tee
directs the air towards the head’ s sides and protects the valve
from water turbulences which might lift it, when the inside is
depressurized, and flood it.
The 2nd stage is connected to one of the first stage’ s 3/8”
ports by means of a flexible medium pressure and high capacity
hose.
All Cressi-sub second stages are downstream, that is the valve
automatically opens in case of calibration loss of first stage or of
a sudden intermediate pressure increase.
This means that any condition of over pressure upstream the
second stage leads to automatic free flow, never causing the
regulator to get stuck.
XS2 features a case in new techno-polymers with excellent
mechanic qualities and an attractive aggressive look. The main-
tenance is outstandingly easy and affordable, still easier on this
model thanks to a side tap, with its own O-Ring, for the valve
precise setting.
� WARNING: intermediate pressure must be set only at
authorized Cressi-sub centres, while the setting values can
NOT and must NOT be modified by the user, in order not to
affect the regulator’ s performance. Cressi-sub decline any
responsibility for any intervention carried out by unauthorized
personnel.
You can find your authorized Cressi-Sub center by
asking your dealer, or Cressi Sub S.p.A. itself
(email: info@cressi-sub.it).
Inner components are in chromium-plated brass, stainless steel
and acetyl resins; springs are in stainless steel, diaphragms in sili-
cone, O-rings in NBR and the mouthpiece in comfortable
hypoallergenic silicone.
fig. 19
SECOND STAGES
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