First Stage - Seac Sub SYNCHRO Serie Manuel D'instructions

NEW SERIES OF SYNCHRO REGULATORS
The family of Seacsub regulators is expanding
its range with the new SYNCHRO series. De-
veloped through of the experience of noted
experts in this sector and thanks to the con-
tinuous collaboration of our diving centres
situated throughout the world. This new se-
ries of regulators characteristic reliability has
astounded people with its excellent perform-
ance, and its simple functioning and mainte-
nance.
As our intention is to offer a wide selection of
products, we have combined the SYNCHRO
DIAPHRAGM
BALANCED

FIRST STAGE

This first stage combines very high perform-
ance with an extremely compact and round
shape.
Operation is ensured by a balanced di-
aphragm system which keeps a constant in-
termediate pressure with reference to both
tank pressure and depth. In addition, the di-
aphragm completely separates the regulator
core from the external environment, ensuring
total reliability over a long series of dives.
It is cast as a single block of copper-plated
brass, subsequently nickel- and chrome-plat-
ed. The outer finish in polished chrome guar-
antees the first stage high resistance to saline
corrosion over time, as the extremely smooth
surface allows no type of anchorage.
Internal components are manufactured from
chrome-plated brass with music-wire springs
and nitrile-rubber seals. Particular care has
been given to the separating diaphragm,
made of a special rubber, which remains un-
changed and is resistant to low temperatures.
Four low-pressure ports, provided with 3/8"
thread, supply a constant pressure of 9.8 bars;
all ports are considered preferential, as they
are implemented on the same axis; in addi-
tion, two of them are positioned at 30 ° with
regard to the first stage body, so as to make
the correct bending of the valves inserted
DIAPHRAGM
BALANCED
D-SYNCHRO REGULATOR
second stage with different types of first
stages.
The various combinations include the first
stage with conventional piston or with two
versions of balanced diaphragm. The same is
assembled in a standard 230 bar version with
threaded yoke and threaded coupler or in an
antifreeze versions, as well as an Octopus ver-
sion.
For an easy identification of each combina-
tion, there is a special label on the second
stage that identifies the model.
CONVENTIONAL
PISTON
easier; the most important components, such
as the main regulator (on the right) and the
jacket or dry diving suit hose (on the left),
shall be connected to these two ports.
In decentralized position there are two high-
pressure ports (one to the right and the other
to the left) with 7/16" thread and inner hole
having a 0.20 mm. diameter; a diving pres-
sure-gauge may be connected to these high-
pressure ports, to check the internal pressure
of the cylinder used, by means of a hose with
7/16" thread male connection.
Particular attention has been paid to the
YOKE connection (Fig. 1)
The round shape and the technical details
make it extremely strong and functional,
adaptable to any type of valves.
gonomic locking handle (Fig. 2) allows a safe
blocking of the yoke without needing to use
excessive force; the movement to loosen the
handle when disassembling the regulator will
be just as easy.
The intermediate pressure upon exiting the
first stage is 9.8 Bar. Periodic control allows
the correct functioning of the regulator over
time, maintaining its performance character-
istics. For this purpose, we recommend care-
fully following the maintenance instructions
below.
OCTOPUS
The er-
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