Seaway Cora II rebreather

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In 2006 Seaway introduced the Co.Ra 1 rebreather. One year later the CORA II was launched. This 1800,00 euro semiclosed rebreather aims for new markets.

The CORA II is designed in such way that by interchanging the lids the function of the rebreather can be changed. Now the unit is available in 4 versions:

-Semiclosed lung operated rebreather with the use of 1 Gas

-Semiclosed lung operated rebreathers with the use of two gases (CMF flow)

-MCCR, closed circuit with manual addition and constant mass flow of 0,8 ltr/min (Kiss style)

-ECCR, electronic controlled closed circuit rebreather (to be released..)

Therebreathersite seaway CoraII 001 — This is the Cora I the predesessor of the new Seaway Cora II

Therebreathersite seaway CoraII 002 — Prototype mouthpiece Cora I

Therebreathersite seaway CoraII 004 — Over the shoulder counter lungs. Extremely short loop!

Therebreathersite seaway CoraII 006 — The scrubber has been placed in a stainless steel housing made of V4A (1.4571)

Therebreathersite seaway CoraII 005 — Mouthpiece with shut off valve

Therebreathersite seaway CoraII 007 — Each unit comes with engraved serial numbers

Therebreathersite seaway CoraII 008 — The scrubber inside the housing is placed asymmetrical, in such way it is impossible to connect inhalation and exhalation tubes in the wrong way.

Therebreathersite seaway CoraII 009 — The Lid can easily be opened

Therebreathersite seaway CoraII 010 — Gas addition on top of the scrubber

Therebreathersite seaway CoraII 011 — Although the gas enters the scrubber in radial direction, the actual scrubbing finds place in axial direction! The scrubber contains maximal 3,5 kg sofnolime.

Therebreathersite seaway CoraII 012 — The housing has extra thermal isolation to prevent the scrubber of cooling in cold water.

Therebreathersite seaway CoraII 014 — Housing lid with eccentric groove for scrubber

Therebreathersite seaway CoraII 015 — Manual addition + OPV

I hope you enjoyed the CORA II

Therebreathersite was founded by Jan Willem Bech in 1999. After a diving career of many years, he decided to start technical diving in 1999. He immediately noticed that at that time there was almost no website that contained the history of closed breathing systems. The start for the website led to a huge collection that offered about 1,300 pages of information until 2019. In 2019, a fresh start was made with the website now freely available online for everyone. Therebreathersite is a source of information for divers, researchers, technicians and students. I hope you enjoy browsing the content!

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