80
� WARNING: Always remember to set the flow deflector’s
lever in PRE-DIVE (-) mode when not using the regulator; oth-
erwise, an accidental collision, the regulator falling into water,
pressing the manual regulation button without having the
mouthpiece in one’s mouth, or suddenly taking the regulator
out of the mouth might trigger a strong free flow, causing high
air consumption.
When the diver exhales, he causes the pressure inside the case
to increase and open the discharge valve. This valve, with a com-
pletely new design and specially calibrated dimensions, is conical
in shape to guarantee a perfect seal for the regulator under all
conditions and all positions during use. In addition, the second
stage case exhaling section has been designed so as to offer the
best performance in combination with the exhaling baffle.
The latter, which can be taken out of the case by means of a spe-
cial sliding hook, directs all exhaled air away from the diver’s face,
thanks to a partition placed on its centre which presses the dis-
charge valve in its middle section ensuring that it opens in an ex-
tremely controlled way. This way, the regulator's exhaling
performance is optimized while also protecting the valve from tur-
bulence in the water that might otherwise open it when the inside
of the case is not pressurized, leading to flooding.
The second stage is connected to one of the 3/8” LP ports on
the first stage by means of an extremely light and flexible
medium-pressure hose, made of a state-of-the-art thermoplas-
tic material that is extremely durable, lightweight, and with excel-
lent flow capacity.
All Cressi-sub XS Compact second stages are downstream, that
is, the valve automatically opens in case of calibration loss in the
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 reg-
ulator to get stuck.
The range of Cressi-sub XS Compact regulators is compliant with
directive 89/686/EEC of 21/12/1989, and has been tested and
certified for use exclusively with:
• warm water (>10°C) for the XS Compact model;
• cold water (>4°C) for the XS Compact PRO model,
by the 0474 RINA test centre in Genoa, with tests in accordance
with standard EN 250:2014, which establishes the requirements
for category III Individual Protective Equipment (PPE), and there-
fore bears the CE Mark followed by the number 0474 identifying
the certifying agency, in accordance with Art. 11A of directive
89/686/EEC.
fig. 14
fig. 15
SECOND STAGES
To Next Page
Loading...
