Originally Posted by Lofty
Not sure what you mean here. As far as I'm aware there are only two types of yolk.the 'A' frame whch is 232 / 234 bar and the screw in din type which is 300 bar both used in diving... I have both as I dive as well as shoot.
The screw in yolks tend to have the pressure gauge on the cylinder and so aren't used for diving as far as I'm aware, this is info I got from the dive shop that if the cylinder can be used for diving then it is tested as such.
I have a Din fitting which has the pressure gauge attached to the cylinder, if I remember correctly the A Frame cylinders have pressure gauges attached to the hose so the cylinder and can still be attached to a divers regulator.
Although I'm no expert!!!