Gasmizer Manual - Submarine Manufacturing and Products Ltd

March 09
5.2 Inlet Section
Fig 1 Inlet Section
1. Exhaust hose ball valve – isolates the system from the exhaust umbilical.
2. Moisture separator F1 – removes liquid and solid particles down to 1 micron.
3. Exhaust hose pressure gauge – monitors pressure in the return umbilical.
4. Float valve – closes if water enters, preventing contamination of the Reprocessing
Unit.
5. Drain valve – provided on moisture separator and float valve.
6. Back pressure regulator – controls the pressure in the main umbilical, eliminating
any possibility of umbilical collapse.
7. BPR loader gauge – indicates the reference pressure applied to the backpressure
regulator.
8. Oxygen injection – supplies an oxygen bleed from the control panel entering the
system via a check valve prior to gas entering the first receiver.
9. Receiver 1 – prevents exhaust side pulsation resulting from compressor operation
and allows O 2 /helium mixing to take place.
10.Relief valve – provides overpressure protection. It is set to lift at 1100 psi.
11.Receiver 2 – as receiver 1.
12.Flow switch – detects flow through the unit, indicating at the control panel when the
flow stops and controls oxygen make up.
13.Filter F2 – removes liquid and solid particles down to.01 micron.
5.2.1 The function of the main components is considered in more detail in the following.
OM002 Rev 5 Page 44 of 168 Chap 5