COASTAL CRUISER
OFFSHORE OCEAN
SERVICE MANUAL
3.3.4 PRESSURE RELIEF VALVE
3.3.4.1 INSPECTIONS AND TESTS
The inspections and tests to be carried out on this type of valve are:
•
Tightness at fastening points to buoyancy tube;
•
Correct functioning of the valve.
3.3.4.1.1 Testing the tightness at fastening points to buoyancy tube
Test the valve tightness in correspondence to the buoyancy tubes by spraying soaped water and checking that
for air bubbles near the valve body (see drawing on the next page).
In case of air leaking first check that the value of the valve torque is correct and, if necessary, tighten the valve
again by means of a dynamometric key calibrated at 25 Nm.
PLUG
RING
LOCKING RING
VALVE BODY
HOLDER
HOLDER
BODY
PLUG
GASKET
RING
RING
SPRING
DISC
MEMBRANE
3.17
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