Mischgas-Swimmtauchgerät FGT III
The FGT III is a deepdive system using Heliox for diving up to 200 meters of depth. By using different blend with oxygen percentages from 10 – 29 %, this rebreather could be used in a wide field of applications.
DATASHEET SEMICLOSED REBREATHER | |||||
| FGT III (FGG III) | Published: 16 March 2005 | ||||
| Fertig Gas Tauchgerät | Database semi closed rebreathers by: J.W. Bech | ||||
| Manufacturer | Dräger | ||||
| Model | FGG III | ||||
| Land of origin | Germany | ||||
| Design year | 1962 | ||||
| Special Note: | |||||
| User group | Military | ||||
| Magnetic characteristics | Non-magnetic | ||||
| Part no: | 11448 | ||||
| Working principle | Constant Mass Flow | Orifices | |||
| Gas type | Heliox | ||||
| Gasmix type | % Oxygen | % Helium | Flow | Worktime | Depth |
| O (dosis III) | 29 | 0 (71 N2) | 20 l/min | 120 min | 0-60 m |
| I | 17,5 | 82,5 | 30 l/min | 100 min | 50-100m |
| II | 12,5 | 87,5 | 40 l/min | 60 min | 100-150m |
| III | 10 | 90 | 50 l/min | 45 min | 150-200m |
| Intended use | Deep diving | ||||
| Dimensions L x W x H | 680x456x215 mm | ||||
| Device weight | 28 kg | ||||
| Intermediate Pressure | 40 bar | ||||
| 8 – 15 mm WK adjustable | |||||
| Max depth | 200 meters | ||||
| Used material for housing/backplate | Reinforced glass fibre | ||||
| Pressure reducer | Membrane type | ||||
| Connection reducer – bottles | W21,8 x 1/14” | ||||
| Supply pressure | 200 bar, minimum 30 bar | ||||
| Umbilical connection | Yes | ||||
| Manual bypass | NO | ||||
| Pressure gauge | 0 – 200 bar | ||||
| Cylinders | 2 x 4 litre | ||||
| Cylinder material | Steel | ||||
| Cylinder charging pressure | 200 bar | ||||
| Cylinder thread | G 5/8” | ||||
| Valve | |||||
| Designed for gas mix | O,I,II,III | ||||
| Co2 absorption cartridge capacity | 3,5Ltr Dräger Sodasorb | ||||
| Co2 absorption cartridge rechargeable | Yes | ||||
| Co2 absorption cartridge storage | |||||
| Co2 absorption cartridge storage | |||||
| Connections Co2 cartridge | |||||
| Absorption time | 4 hours | ||||
| Grade | |||||
| Breathing bag material | Sturdy cotton fabric | Rubber on one site | |||
| Volume | Total volume 6 litre | ||||
| Relief valve | 8 – 15 mm WK adjustable | ||||
| Mouthpiece | Valve type | ||||
| Operating temperature | |||||
| Magnetic signature | |||||
| Colour | Yellow | ||||
| Worn | On the back | ||||
| FFM attached | NO | ||||
| Mouthpiece valve | Yes | ||||
| Extra info: | |||||
| Additional information: | |||||
| Email address owner: | |||||
| If you have any information to add this sheet please mail it to jw.bech@quicknet.nl References to source and names will always be added! | |||||
| Info found: | |||||
| Origin: http://www.therebreathersite.nl | |||||
| Info: Åke Larsson’s pages http://www.teknosofen.com/fgg_pic.htm | |||||
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!