Tribord 8334353 Manuel De L'utilisateur page 5

WARNING: Standard EN 250: 2014 provides for one diver breathing at a time in the first
stage. The octopus must only be used only in emergencies, as an emergency source of
air. If a regulator is used by more than one diver at the same time, especially in cold water
conditions, respiratory performance may not meet the requirements of EN 250: 2014.
DANGER: the TRIBORD secondary demand valve (Octopus) passes the cold-water
certification test (temperature below +10° C).
However, for this type of diving, we recommend using a completely independent
secondary demand valve (dedicated first and second stages).
WARNING: When the air or water temperature is less than 10° C, diving is called "cold
water diving".
When the air or water temperature is less than 5° C, diving is called "ice diving".
Diving in ice water is extremely dangerous and requires special training, equipment,
preparation, and special procedures.
Use thermal insulation that is suitable for the temperature of the water in which you
operate and the type of work you do.
WARNING: The use of special equipment in cold water and ice water is mandatory.
If you sell or lend this equipment, make sure this handbook is supplied along with the
pressure regulator.
Do not change any sub-part (first stage, second stage, octopus, hose, etc.) with equipment
not produced by TRIBORD.
3 - FUNCTIONAL DESCRIPTION
The regulator makes it possible to reduce the pressure of the compressed air from the tank to a
suitable value for the breathing.
• The first stage feeds the second stage with constant pressure, regardless of the tank pressure,
between 200-300 bar up to a few dozen bar. It's attached to the tank's valves with the bracket
or a DIN standard screw system.
• The second stage's function is to reduce the pressure provided by the first stage to the level of
ambient pressure and to deliver air with each breath of the diver (second stage on request). It
is connected to the first stage via a flexible hose.
The first stage allows you to connect a high pressure diving pressure gauge (analogue or digital)
and low pressure feeds to inflate the buoyancy compensator, dry suit and other devices.
3.1 Unbalanced first stage
It consists of four low pressure ports (LP) (3/8" x 24 UNF) providing constant pressure of about
10 bar (230 bar inlet pressure), and also a high pressure port (HP) (7/16" x 20 UNF).
The high pressure port is for connecting a pressure gauge with a 7/16" male connector.
The unbalanced regulator is certified with an INT adapter bracket (ISO-12209-1, max pressure
230 bar), or a threaded DIN 230 connection (ISO-12209-on, max pressure 230 bar), or a DIN 300
connection (ISO-12209-2, max pressure 300 bar) in accordance with EN 250: 2014.
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