Dräger Sauerstoff Klein Gasschützgerät Modell KG130
KG stands for ‘Klein Gasschutzgerät’ and was developed between WW1 and WW2. The model KG130 was the successor to model KG1928 and was produced in large numbers. It was designed for civil defence and fire brigades. The unit was so popular that Dräger later developed the KG 160 and KG 210 models based on the same technology.
The model had two striking outward-hinging doors. The breathing system that provided the gas injection was the further development of lung-controlled breathing. Each time the wearer breathes, a fork connected to the lung injects gas into the lung.
The set was equipped with a 4.5 litre counterlung, a 1 litre oxygen cylinder filled to 150 bar.
The unit was worn with a face covering mask and had a full circuit with separate in and out breathing hoses. The wearing time of one hours resulted in the presence of water vapor and saliva due to intensive breathing and the Co2 removal process. For this purpose, a moisture trap was mounted directly under the breathing valve. Masks were also equipped with communication systems in later years.
The popular device was produced in thousands and in 1936 the production of the 3000th device was celebrated.
The lung dosage unit was mounted on the outside of the lung in a vertical position.
Thanks to Werner Koerver and to Wilhelm Dormeier I was able to buy my very OWN Dräger 1930-1935 designed and 1936 build KG130 rebreather. The rebreather was the design following the KGG 1928 rebreather, the Dräger Klein Gasschutz gerat.
Here you see the mask. Like all rubber parts it seems to me that in 1936 they were not able compose the rubber in the manner we do now. If you look at the original black handwheel of the oxygen bottle you see it is white! White is the original color of rubber used by Dräger. I think no coal was added then.The mask is fantastic but also in poor condition, but for a 72 year old mask…..
The valve has a special feature, the o-ring was delivered in white and black. The white O-ring was a feature the set was produced by Dräger, sets with black O-rings were made at AUER. “The poor condition of the rubber is due to the fact that most of the rubber made in Germany at this time was synthetic and was called Buna-S , this was a very bad compound and many called the ” S ” Shit . The Synthetic rubber we have today is called Buna-N which is far superior”.
If you have manuals, old units or other information? Please feel free to send it to me. It will be used for the rebreather collection.
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!