The correct pressure for the buoyancy tube is 240 mb/3,4 PSI, and 800 mb / 11,3 PSI for the
Aerotec inflatable floor.
Your boat is equipped with an
ACCESS
pressure indicator. It will permit a quick and efficient control of
the pressure during inflation. Without a pressure indicator, stop inflating when the foot-pump gets
difficult to operate, and the boat is " hard" (you should not be able to bend the cone ends).
Ambient temperature of air and water
have an effect on the boat's internal
pressure
Therefore, it is important to anticipate:
Because of temperature variations (especially when this variation i~;important between the beginning
and the end of the day, in hot areas) check and adjust tll" plt,,;,;UW Irl tile inflated compartments by
inflating or deflating. Be sure that pressure remains wililln tllo wcommended zone, between 220
mb/3,10 PSI and 270 mb/3,85 PSI.
I
RISK OF UNDERPRESSURE
EXAMPLE: Your boat is in direct sunligllt on tll"
boar-II (t"mpmature
=50"C/122°F) at
recommended pressure (240 mb/3,4 PSI). aftm puttlrl<) il in III"
colder water (temperature
=20°C/68°F), the internal temperature and pressuro of 1111,
IlJl)(,~;wllllJolll drop (up to
120 mb/1,7
PSI) and YOU WILL HAVE TO INFLATE AGAIN unlil you 1()~Flintll" lo~;1pressure due to the
difference in temperatures. Therefore, a loss of pr"ssuH> at 1111'ond
01
tile day when ambient
temperature drops is perfectly normal.
Proper inflation is critical to the performanco of Ihe boat. It is the pressure in
the tubes that gives your boat the necessary rigidify
10
perform well. Under-
inflation causes improper flexing of Ihe tubes which will result in stress and
chafe
I
RISK OF OVERPRESSURE
EXAMPLE: Your boat is inflated to the recommended pressure (240 mb/3,4 PSI) at the
beginning of the day (lOWambient temperature =10"C/50"F). Later in the day, your boat is in direct
sunlight on the beach or on a yacht's deck (temperature =50"C/122'F). Internal temperature of all
inflated compartments can then increase and reach up to 70"C/158"F (especially for dark-coloured
tUbes). The consequence will be a doubling of previous pressure (480 mb/6,8 PSI). YOU WILL THEN
HAVE TO DEFLATE until you reach the recommended pressure.
~
WARNING
WHEN YOUR BOAT IS OVER INFLATED, PRESSURE BECOMES TOO
STRONG FOR THE INFLATABLE STRUCTURE, AND COULD CAUSE A
BREAK IN THE FABRIC ASSEMBLY
STANDARD VALVE (A):
Free some air by pushing on the
diaphragm (1) with a blunt object
(like a pencil).
Beware not to fold down the
diaphragm.
