Page 18 / 31
between the morning and evening in hot regions) and check that the pressure does not
leave the recommended pressure zone (from 220 to 270 mb / green zone).
LOW PRESSURE RISK:
Example:
Your boat is exposed to direct sunlight on the beach (temperature=50°C) at the
recommended pressure (240 mb/3.4 PSI). When you launch the boat (temperature = 20°C), the
temperature and pressure in the inflatable compartments will jointly drop (up to 120 mb) and
you must then re-inflate
them until the millibars lost due to the difference between air and
water temperature are regained. It is normal to observe a drop in pressure at the end of the day
when the outdoor temperature drops.
RISK OF OVERPRESSURE:
EXAMPLE:
Your boat is inflated to its recommended pressure (240 mb/3.4 PSI) at the
beginning or end of the day (low outside temperature = 10°C). Later in the day, your boat is
left in the sun on the beach or on the deck of a boat (temperature = 50°C). The temperature
inside the inflatable compartments may rise to 70°C (particularly for dark buoyancy tubes),
doubling the initial pressure (480 mb).
You must then deflate
the boat to return to the
recommended pressure.
WARNING
If your boat is overinflated, the pressure will abnormally wear the inflatable
structure which may lead to a breach of the assembly.
BUOYANCY TUBE - PRESSURE
IN THE EVENT OF OVERPRESSURE
EASY-PUSH VALVE:
Release air by pressing the
valve plunger
