Gasmizer Manual - Submarine Manufacturing and Products Ltd

March 09
5.3 Outlet Section
Fig 2
Outlet Section
Scrubbers
5.3.1 The outlet section consists of the following components:
1. Scrubber inlet valves – provide manual shut-off of the scrubber unit.
2. Scrubber/filter vent value – provides manual venting of the scrubber or filter prior to
changing.
3. Scrubber outlet valve – provides manual shut-off of the scrubber outlet.
4. Scrubber assembly – removes CO 2 and odours by passing the gas through a bed of
soda lime and Purafil.
5. Heat exchanger – cools the exhaust gas to condense water vapour.
6. Cooling water inlet valve – provides manual shut-off of cooling water to the heat
exchanger.
7. Filter F3 – 1 micron coalescing filter which collects moisture condensed in the heat
exchanger.
8. Diver supply pressure gauge – indicates the pressure of gas leaving the topside
unit.
9. Sample regulator shut-off valve – isolates sample regulator.
10.Sample regulator – provides gas to analysers at 2 psi.
11.The diver supply valve – provides manual shut-off of the gas supply from the
Reprocessing Unit.
5.3.2 The following describes the main components in more detail.
5.3.3 The scrubber units consist of a deep bed of soda lime and Purafil. Soda lime is a
widely used absorbent for carbon dioxide. Purafil is effective in removing odours and a wide
OM002 Rev 5 Page 46 of 168 Chap 5