Vintage Double Hose

Hi,

I opened an Overpressure regulator and found a one way valve with a yellow cage in one hose. It was forced into one of the rings of the hose. I found an example in the gallery:

http://www.vintagedoublehose.com/forum/ ... temId=1415

Can anyone tell me who made this valve and when it was made?

Looks to me like you were working on a Divair regulator and I would assume the yellow cages went to that regulator.