42 Group RAF who were responsible for the management of RAF munitions during WW2 were also responsible for the supply of aviation fuel and lubricants and aircraft breathing oxygen.
The first two topics are covered in threads in the forum but little has been discussed on the provision of oxygen.
It is known that some of the major munitions storage sites had permanent oxygen facilities and others used mobile equipment manned by a 'roving' team of specialists.
Many thousands of bulk storage cylinders were returned from airfields, filled and put back into the supply chain. At Squadron level these would have been mounted on trollies (carts) equipped with a regulator system and used to charge aircraft installed cylinders via a high pressure flexible hose. Dependent on aircraft type, the aircraft cylinder(s) might be removed and charged 'off aircraft' before being re-installed.
Little information appears to be available on this topic and posters are invited to comment on my suppositions.
I do not think that munitions storage sites had their own oxygen production equipment. I think that liquid oxygen (LOX) was bought in from civil contractors (e.g British Oxygen Company) and that it was stored in a tank from which it was converted into gaseous form and pumped to fill the storage cylinders.
A well known site which did produce LOX was Cardington and I believe that Pulham also had a plant.
What can you tell me about the role of the munitions storage depots, expecially FADs, in producing oxygen?