DrassUno Deco Chamber

DrassUno Chamber is a single lock hyperbaric chamber for surface commercial diving. It is designed to support shallow water diving operations in areas, such as onboard vessels, where access to a fixed recompression chamber is not immediately available in case of need.

The baseline version is based on 650mm internal diameter outfitted for one-person pressure vessel equipped with the items required to properly operate.

The DrassUno chamber is a Single Lock hyperbaric chamber with control panel directly installed on the chamber body.

Main Characteristics

• Working Pressure 7 bar (8 bar absolute) = 70 msw
• Inner Diameter 650 mm PV Length ~2380 mm
• Lock Volume ~0.74 m3 Entry Lock Volume ~3.6 m3Main Lock Manway ND 650 mm
• Medical/Lock dimensions diameter 125 mm, length 215 mm
• Number of windows 2 Windows Diameter 160 mm (127 mm clear)
• Total Weight ~670 kg

DrassUno Chamber Main Characteristics

Internal/External Outfitting− One (1) manway fitted with male STANAG flange NATO 1079− One (1) medical lock− Two (2) viewports− Two (2) lifting eyes on the top of DDC− Two (2) lateral handrails− One (1) bed (450 mm x 1950 mm)− One (1) air/oxygen control panel− One (1) electric and communication control panel− One (1) CO2 scrubber

Air/O2 Control System

Air/O2 control System of DrassUno Chamber is aimed to perform the following main functions:

• − Pressurization/decompression of the chamber
• − Divers breathing through BIBS (up to 18 msw)
• − Depth monitoring
• − Internal atmosphere gas analysis from sample point (portable analyzer not included)
• Air/O2 control System main parts are:
• − a pressurization line fitted with pressure reduced from HP to LP to be connected to air cylinders (source limited @200bar for HP air)
• − a quick connector for pressurize in emergency from an LP air supply (source limited @10bar for LP air)
• − a depth line with external pressure gauge fitted
• - oxygen circuit fitted with: pressure reducer, internal BIBS mask and exhaust (source limited @200bar)
• − a safety pressure relief valve
• − a depressurization line
• − a medial lock fitted with equalization line and external pressure gauge
• − an equalization line on manway door to be used in case of mating with equalization chamber

All lines are fitted with internal silencer and control valve.

Electric and Communication System

The DrassUno Chamber is provided with:

• − a hyperbaric light system
• − a communication system
• − a main power supply (230, 60 Hz / 50 Hz)