P-SYNCHRO REGULATOR
FIRST STAGE
The simpler of the SEACSUB first stages has its
strong points in its lightness and ease of
maintenance. Its features place it fully within
the strictest parameters required by European
standards, allowing the ability of this model
for use in cold waters. This most recent and
important technical recognition allows the
regulator an ample range of use and the pos-
sibility to carry out high-level sport diving
with the maximum peace of mind under any
environmental conditions.
Its functioning is ensured by a balanced pis-
ton inside an integrated brass chamber with
three layers of electro-galvanized coatings for
a total thickness of 12 -15 microns. The inter-
nal parts are always in chrome and/or nickel-
plated brass with harmonic stainless steel
springs and nitrile rubber gaskets.
Eight slots on the head of the piston chamber
allow an immediate and constant compensa-
tion of the pressure while facilitating the pas-
sage of water. This latter technical feature
further facilitates proper functioning in cold
waters.
Even the P-SYNCHRO YOKE version has a new
ergonomic yoke equipped with the new spe-
cially designed blocking knob.
Four low-pressure outlets with a 3/8" thread
provide a starting pressure of about 10 bar;
there is also a high-pressure outlet with a
7/16" thread and inner hole with a diameter
of 0.20 mm. This high-pressure outlet can also
be fitted with an underwater pressure gauge
by means of a hose with a male 7/16" termi-
nal. Particular care was taken in positioning
the various outlets with angles studied specif-
ically to give the correct curvature to each
hose connected.
The protective rubber hood at the base of the
regulator will protect it from damage caused
by accidental impacts (Fig. 4).
Fig. 4
Attention!
Only use EC-certified pressure gauges with
standard threads; avoid using any other
valves between the first stage and the high-
pressure hose terminal.
The P-Synchro regulator can easily support
tank pressure up to 300 bar; however we rec-
ommend using this first stage with the con-
nection supplied by SEAC and subjected to EC
certification.
The P-SYNCHRO first stage is available in the
following versions:
International yoke connection (YOKE ISO
12209-1 230 BAR)
Thread Connection (THREAD CONNEC-
TION ISO 12209-2/3.5; 230 BAR)
Attention!
To use the YOKE connection (ISO 12209-1 230
bar) or the THREAD connection (ISO 12209-
2/3.5; 230 bar), you must use a cylinder having
valves fitted with the relevant connections.
It may be necessary to remove the adaptor on
the valve outlet depending on the type of
connection being used.
We recommend acquiring a 5 mm Allen Key
(ISO 12209-3) to be used on the valves and to
remove or insert the adaptor in order to ob-
tain the correct connection.
Attention! It is still possible to find valves
with adaptors that require the use of an 8
mm Allen key for assembly/disassembly. This
adaptor refers to the previous standard.
There are no other contraindications against
using this valve or adaptor from a safety
point of view.
Concerning the 300 bar THREAD connection
(ISO 12209-2/3.2; 300 bar), only the relevant
connection with the valves shall be used.
As an alternative, it is possible to use connec-
tion adaptors that allow you to use regula-
tors with threaded ISO 12209-2/3.5 230 BAR
connections on valves with YOKE ISO 12209-1
230 BAR connections. These adaptors con-
form to ISO 12209/3 standards.
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