Gasmizer Manual - Submarine Manufacturing and Products Ltd

March 09
1.6 Electric Gas Booster
1.6.1 The gas booster is used to increase the pressure of the recovered gas from the
Reprocessing Unit prior to returning it to the CO 2 scrubbers.
1.6.2 The design of the unit is such that the outlet pressure will always be correct for the
working depth provided the control console is set correctly.
Fig 6
Electric Gas Booster
1.6.3 The standard booster is supplied with a 50 HP motor and can easily cope with 1 bell (2
divers) at any depth from 30 to 500 msw.
1.7 Gas Supply System
1.7.1 The entire gas supply is similar to that on a conventional open circuit dive system. Gas
from the GASMIZER volume tank is supplied to the bell gas console at the required pressure. In
addition, two independent standby gas supplies will be present at this panel, regulated to a
pressure slightly below that of the recovery system. In the event of interruption of gas from the
Gasmizer System, standby gas is automatically placed on-line. If this occurs, the supervisor is
alerted by an audio or visual indicator located on the control console panel, which indicates “no
flow” in the Gasmizer System.
1.7.2 The remainder of the gas supply system is completely conventional. Gas passes down
the bell umbilical to the supply manifold in the bell and from there to the diver.
1.7.3 The volume tank is a significant safety feature of the system since it introduces a delay
between re-processing and use of the gas by diver. This allows monitoring of the breathing gas
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